All Classes and Interfaces
Class
Description
The SPARQL built-in
Function ABS, as defined in
SPARQL Query Language for RDFBase class for shared functionality of aggregate operators (e.g.
Base class for visitors of the SPARQL AST.
Abstract base class for
BindingSet implementations, providing a.o.Base class for
BNode, offering common functionality.Base class for
CloseableIterations offering common functionality.An Iteration that can convert an
Iterator to a CloseableIteration.Abstract base class for tests included in the
RepositorySPARQLComplianceTestSuite.Abstract base class for
ExtendedEvaluationStrategy.Base class for
FederatedServiceResolver which takes care for lifecycle management of produced
FederatedServices.Base class for any
Query operation over HTTP.Base class for any
Update operation over HTTP.Base class for
IRI, offering common functionality.Base class for
Literal, offering common functionality.Base implementation of LogConfiguration.
Abstract log reader
Provides basic operations that are common to all Models.
Base class for
Namespace, offering common functionality.Base implementation of the NavigationNode interface.
A base
NotifyingSail implementation that takes care of common sail tasks, including proper closing of active
connections and a grace period for active connections during shutdown of the store.Abstract Class offering base functionality for SailConnection implementations.
JUnit test for the N-Triples parser that uses the tests that are available
online.
JUnit test for the N-Triples parser that uses the tests that are available
online.
Abstract super class of all operation types.
Utility base class for Platform implementations.
Abstract super class of all query types.
Base implementation of
QueryModelNode.Base class for
QueryModelVisitors.A base implementation to handle an HTTP query request.
Abstract test for QueryResultIO.
Abstract test for QueryResultIO.
Base class for
QueryResultParsers offering common functionality for query result parsers.Base class for
QueryResultWriters offering common functionality for query result writers.Base class for
RDFHandlers with dummy implementations of all methods.An RDFHandler that adds RDF data to some RDF sink.
Base class for
RDFParsers offering common functionality for RDF parsers.Base class for
RDFWriters offering common functionality for RDF writers.ReaderMonitor holds IndexReader and IndexSearcher.
An abstract base implementation of a read/write-lock manager.
Base class for
Repository implementation, offering common functionality.Abstract class implementing most 'convenience' methods in the
RepositoryConnection interface by transforming
parameters and mapping the methods to the basic (abstractly declared) methods.Base class for
RioSetting.An abstract Sail implementation that takes care of common sail tasks, including proper closing of active connections
and a grace period for active connections during shutdown of the store.
Abstract Class offering base functionality for SailConnection implementations.
Base implementation of
SailImplConfigBase class for
QueryModelVisitors.Abstract base class for SPARQL Results JSON Parsers.
Abstract base class for SPARQL Results XML Parsers.
Base class for
Statement, offering common functionality.Base class for
Triple, offering common functionality.Base class for
TupleQueryResultHandlers with dummy implementations of all methods.Base class for
TupleQueryResultParsers offering common functionality for query result parsers.Generic tests for
TupleQueryResultWriter implementations.Abstract super class of all update types.
Base class for
ValueFactory, offering common functionality.A bloom filter that is exact (no false positives) at the cost of always having to query the repository.
Registry keeping track of active transactions identified by a
UUID.A SPARQL ADD Query
Operation to add a statement.
http://jena.hpl.hp.com/ARQ/function#.
A SPARQL aggregate expression.
Collector for values used by
AggregateFunction'sCustom
AggregateOperator function call that can be defined to take an argument and can apply distinct
filtering on it.Factory for a registered
AggregateFunction that is evaluated in the same fashion as standard aggregate
functions e.g.Sum invalid input: '&' CountAn operator that returns aggregates values.
Tests on SPARQL aggregate function compliance.
Used to signal bulk validation.
A boolean AND operator operating on two boolean expressions.
http://jena.hpl.hp.com/ARQ/property#.
A product version in Aduna's version format (i.e.
A tuple expression that matches a path of arbitrary length against an RDF graph.
Tests on SPARQL property paths involving * or + operators (arbitrary length paths).
Class to represent a SPIN argument.
An array implementation of the
BindingSet interface.Command line interface for the demo.
Spring config for the demo.
Class responsible for repository access for managing
Artist entities.Uses
ArtistDao and PaintingDao to query and manipulate the repository.Utility methods for ASCII character checking.
A marker interface to denote objects which are bind-able in a SPARQL assignment expression.
A SPARQL expression-to-variable assignment
Deprecated.
An interface for
StatementOrder implementations that can report which orders they support for a given
subject, predicate, object and contexts.The AVG operator as defined in http://www.w3.org/TR/sparql11-query/#aggregates.
Provides concurrent access to statements as they are being parsed when instances of this class are run as Threads.
Provides concurrent access to tuple results as they are being parsed.
A Backing
SailSource that does not respond to BackingSailSource.close() BackingSailSource.prepare() or BackingSailSource.flush().A SPARQL Base declaration
Resolves relative URIs in a query model using either an external base URI or using the base URI specified in the
query model itself.
Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG instead.
Base class for rendering RDF4J query API objects into strings.
A class encapsulating the basic parser settings that most parsers may support.
RioSetting constants to use with QueryResultWriters.Basic SPARQL functionality tests
A class encapsulating the basic writer settings that most writers may support.
A language handler that can verify BCP47 formatted language tags.
Basic graph pattern collector.
Interface defining constants for the binary table result format.
Reader for the binary tuple result format.
A
TupleQueryResultParserFactory for binary tuple query result parsers.Writer for the binary tuple result format.
A
TupleQueryResultWriterFactory for writers of binary query results.An
RDFParserFactory for Binary RDF parsers.A
RDFWriter for the binary RDF format.An
RDFWriterFactory for Binary RDF writers.WriterSettings for the binary RDF writer.
WriterSettings for the binary RDF writer.
An abstract superclass for binary tuple operators which, by definition, has two arguments.
An abstract superclass for binary value operators which, by definition, has two arguments.
A named value binding.
Assigns values to variables based on a supplied set of bindings.
A BindingSet is a set of named value bindings, which is used a.o.
Optimizes a query model by inlining
BindingSetAssignment values where possible.Compact and efficient representation of a binding set for use as a key in hash maps.
A marker interface used in the GroupBy logic to make a key out of the values being grouped by.
Maps a query solution to an instance.
Takes a plan node as a source and for each tuple in the source it will build a BindingSet from the vars and the tuple
and inject it into the query
Test on SPARQL BIND function.
Empty RDF Handler that provides a
Statement consumer that can be used with JMH BlackHole to avoid JVM (JIT
Compiler) optimizationsProcesses blank nodes in the query body, replacing them with variables while retaining scope.
An RDF-1.1 blank node (aka bnode, aka anonymous node).
A BNode generator, which generates a new BNode each time it needs to supply a value.
Deprecated.
use
BooleanCast insteadA
Function that tries to cast its argument to an
xsd:boolean.An extension of
SimpleLiteral that stores a boolean value to avoid parsing.An extension of MemLiteral that stores a boolean value to avoid parsing.
Represents the concept of a boolean query result serialization format.
An interface that indicates that this QueryResultHandler is capable of handling boolean results using the
QueryResultHandler.handleBoolean(boolean) method.An exception that can be thrown by an BooleanQueryResultHandler when it encounters an unrecoverable error.
A general interface for boolean query result parsers.
Returns
BooleanQueryResultParsers for a specific boolean query result format.A registry that keeps track of the available
BooleanQueryResultParserFactorys.View used to render boolean query results.
The interface of objects that writer query results in a specific query result format.
Returns
BooleanQueryResultWriters for a specific boolean query result format.A registry that keeps track of the available
BooleanQueryResultWriterFactorys.A
RioSetting with a Boolean value.Reader for the plain text boolean result format.
A
BooleanQueryResultParserFactory for plain text boolean result parsers.Writer for the plain text boolean result format.
A
BooleanQueryResultWriterFactory for writers of plain text boolean query results.The BOUND function, as defined in SPARQL Query Language
for RDF; checks if a variable is bound.
The GeoSPARQL
Function geof:boundary, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.A
QueryModelNode for printing the bound filter vars (e.g.Inserts original bindings into the result.
Marker interface indicating that instances are applicable for bound join processing (see
ControlledWorkerBoundJoinInserts original bindings into the result.
Implementation of an on-disk B-Tree using the java.nio classes that are available in JDK 1.4 and newer.
The GeoSPARQL
Function geof:buffer, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.An
RDFHandlerWrapper that buffers statements internally and passes them to underlying handlers grouped by
context, then subject, then predicate.Tests on various SPARQL built-in functions.
Class providing utility methods for handling byte arrays.
A
Function that tries to cast its argument to an
xsd:byte .A ByteSink writes data as raw bytes directly to an
OutputStream.Resource cache expiry filter for Tomcat 6, based on code authored by Saket Kumar.
An extension of
SimpleLiteral that stores a calendar value to avoid parsing.An extension of MemLiteral that stores a Calendar value to avoid parsing.
Abstract superclass for
Functions that cast an argument
to an XML Schema datatype.The SPARQL built-in
Function CEIL, as defined in
SPARQL Query Language for RDFSet of changes applied to an
SailSourceBranch awaiting to be flushed into its backing SailSource.A CharSink writes data as characters to a
Writer.Used by sh:equals to return any targets and values where the target has values by path that are not values by the
predicate, or vice versa.
A statement pattern with no free variables when provided with some particular BindingSet in evaluate.
A
RioSetting with a Class value.Clear command.
Update that, upon each invocation of
execute(), clears the result cache it is aware of.Operation that removes all namespace declarations.
Operation that clears the whole repository.
A SPARQL CLEAR Query
HTTP-related exception indicating that an HTTP client has erred.
Close command
An
CloseableIteration that can be closed to free resources that it is holding.Wraps a
CloseableIteration as an Iterator.An Iteration that can convert an
Iterator to a CloseableIteration.A wrapping iteration that attempts to close the dependent
RepositoryConnection after consumption.Helper class for quickly iterating over a String and receiving each character code point (taking care to handle
surrogate pairs correctly).
Helper class for working with Strings as sequences of Unicode code points.
A Factory that may generate optimised and/or disk based collections
Factories like this should not be cached but created a new everytime as the closing is important if they are disk
based.
An iteration to access a materialized
Collection of BindingSets.Abstraction of console commands.
Interceptor that inserts some commonly used values into the model.
A comparison between two values.
The SPARQL built-in
Function CONCAT, as defined in
SPARQL Query Language for RDFExtended version of concat for SPIN.
Limited-size concurrent cache.
Limited-size concurrent cache.
Optimized for multithreaded use of the Java 9+ Cleaner
Shared vocabulary for configuration of RDF4J components: Repositories, SAILs, and so on.
Custom Graph Query Inferencer config
ContextAwareRepository config
Elasticsearch Store config
HTTP Repository config
Lucene Sail config
Memory Store config
Native Store config
ProxyRepository config
Repository config
Sail config
SHACL Sail config
SPARQLRepository config
Handles requests related to repository configuration.
Application configuration interface
Utility functions for working with RDF4J Models representing configuration settings.
Configuration helper class
View used to export a repository config.
Splits conjunctive constraints into seperate constraints.
ConjunctiveFilterExpr maintains a list of conjunctive (i.e.
Connect command
Convenience functions for use with
RepositoryConnections.The RDF4J Console is a command-line application for interacting with RDF4J.
Abstract command
Write query results to console
Write query results to console
Abstract setting
Console state interface
Console value setting
A query optimizer that optimizes constant value expressions.
Class to store SPIN constraint violation RDF statements.
Enum of possible SPIN constraint violation levels.
The SPARQL CONSTRUCT query
Tests on SPARQL CONSTRUCT queries.
A specialized
CloseableIteration that consumes part (or the entire input iteration if it fits into the
buffer) and keeps data for further processing in memory.The SPARQL built-in
Function CONTAINS, as defined in
SPARQL Query Language for RDFAllows contexts to be specified at the connection level or the method level.
A
RepositoryFactory that creates ContextAwareRepositorys based on RDF configuration data.Allows contexts to be specified at the repository level.
Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG.ContextAware vocabulary instead.
Visitor implementation for the query algebra which walks the tree and figures out the context for nodes in the
algebra.
A TransactionOperation that operates on a specific (set of) contexts.
Handles requests for the list of contexts in a repository.
A RDFHandler that can be used to collect reported statements in collections.
Execute the nested loop join in an asynchronous fashion, using grouped requests, i.e.
Execute the nested loop join in an asynchronous fashion, i.e.
Execute the nested loop join in an asynchronous fashion, i.e.
ControlledWorkerScheduler is a task scheduler that uses a FIFO queue for managing its process.
Execution of union tasks with
ControlledWorkerScheduler.Convert RDF file from one format to another
A CloseableIteration that converts an iteration over objects of type S (the source type) to an iteration
over objects of type T (the target type).
An Iterator that converts an iterator over objects of type S (the source type) to an iterator over objects
of type T (the target type).
The GeoSPARQL
Function geof:convexHull, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.Browsers do not expire cache if Cookies have changed.
Handles cookies for proxy servlets.
Handles cookies for TransformationServlet.
A SPARQL COPY Query
CorruptIRI is used when a NativeValue cannot be read from the ValueStore and if soft failure is enabled
CorruptIRIOrBNode is used when a NativeValue cannot be read from the ValueStore and if soft failure is enabled
CorruptLiteral is used when a NativeValue cannot be read from the ValueStore and if soft failure is enabled
CorruptUnknownValue is used when a NativeValue cannot be read from the ValueStore and if soft failure is enabled
CorruptValue is used when a NativeValue cannot be read from the ValueStore and if soft failure is enabled
Create command
A SPARQL CREATE Query
Iteration which forms the cross product of a list of materialized input bindings with each result obtained from the
inner iteration.
ServiceRegistry implementation that stores available custom aggregate functions that can be used during query
evaluation.A forward-chaining inferencer that infers new statements using a SPARQL graph query.
Configuration handling for
CustomGraphQueryInferencer.A
SailFactory that creates a CustomGraphQueryInferencer based on RDF configuration data.Deprecated.
since 4.3.0.
Class supplying access to a data file.
Represents a dataset against which operations can be evaluated.
A SPARQL dataset specification
Extracts a SPARQL
Dataset from an ASTQueryContainer, if one is contained.Synthetic dataset generator.
A repository that automatically attempts to load the dataset supplied in a (SPARQL) query (using FROM and FROM NAMED
clauses).
A
RepositoryFactory that creates DatasetRepositorys based on RDF configuration data.Class that provides indexed storage and retrieval of arbitrary length data.
An interface to implement a base data structure for the ExtensibleStore.
The DATATYPE function, as defined in SPARQL Query
Language for RDF.
An interface defining methods related to verification and normalization of typed literals and datatype URIs.
Registry of
DatatypeHandlers.A
Function that tries to cast its argument to an
xsd:date.Deprecated.
use
DateTimeCast instead.A
Function that tries to cast its argument to an
xsd:dateTime.An exception that is thrown to indicate that the parsing of a DAWG Test Result Set graph failed due to an
incompatible or incomplete graph.
A
TupleQueryResultHandler that converts query results to an RDF graph using the Data Access Working Group
Test Result Set RDF Vocabulary (http://www.w3.org/2001/sw/DataAccess/tests/result-set#).The SPARQL built-in
Function DAY, as defined in
SPARQL Query Language for RDFAn implementation of a datatype handler that can process DBPedia datatypes.
Vocabulary constants for the Dublin Core Metadata Element Set, version 1.1
Constants for the W3C Data Catalog Vocabulary.
Vocabulary constants for the Dublin Core Metadata Initiative Metadata Terms.
Used for adding a custom log statement to tuples as they pass through.
Utility class that prints all events to a PrintStream (default: System.err), optionally with a stacktrace.
Deprecated.
use
DecimalCast instead.A
Function that tries to cast its argument to an
xsd:decimal.An extension of
SimpleLiteral that stores an integer value using a BigDecimal object.An extension of MemLiteral that stores a decimal value to avoid parsing.
An inferencer may infer the same statement from two different statements.
A DefaultCollectionFactory that provides lists/sets/maps using standard common java in memory types
Default SPARQL 1.1 Query Evaluation strategy, to evaluate one
TupleExpr on the given TripleSource,
optionally using the given Dataset.Default implementation of the
FedXCostModelTests on handling default graph identification (DEFAULT keyword, rf4j:nil).
A RecordComparator that compares values with eachother by comparing all of their bytes.
Default implementation of the SailChangedEvent interface.
Default implementation of
WriteStrategyFactory.An iteration that delays the creation of the underlying iteration until it is being accessed.
A
FederatedServiceResolver which redirects SERVICE requests to the federation member (if the SERVICE IRI
correspond to a member) or to the provided delegate.Main interface for repositories that wrap another repository.
The SPARQL Delete Data Query
Test that a complex delete-insert SPARQL query gets correctly executed.
Servlet responsible for presenting the list of repositories, and deleting the chosen one.
Iteration that implements a simplified version of Symmetric Concise Bounded Description (omitting reified
statements).
Tests on SPARQL DESCRIBE queries
A SPARQL Update Query that has a source and a destination
The MINUS set operator, which returns the result of the left tuple expression, except for the results that are also
returned by the right tuple expression.
The GeoSPARQL
Function geof:difference, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.Used to create a lock in a directory.
A forward-chaining inferencer that infers the direct-type hierarchy relations
sesame:directSubClassOf, sesame:directSubPropertyOf and sesame:directType.A
SailFactory that creates DirectTypeHierarchyInferencers based on RDF configuration data.Disconnect command
A query optimizer that optimize disjunctive constraints on tuple expressions.
The GeoSPARQL
Function geof:distance, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.An Iteration that filters any duplicate elements from an underlying iterator.
An Iteration that takes two source.
Constants for the Description of a Project.
A document result or hit from a search query.
Utilities to make working with DOM documents easier.
Deprecated.
use
DoubleCast instead.A
Function that tries to cast its argument to an
xsd:double.A SPARQL DROP Query
Provides a bag union of the two provided iterations.
A LinkedHashModel or a TreeModel achieves fast data access at the cost of higher indexing time.
Creates
DynamicModel.Interface to support evaluation statistics that keep their own internal estimates and need to be notified of added or
removed statements.
A read cache that keeps a hot copy of the underlying data structure
Constants for EARL primitives and for the EARL namespace.
The GeoSPARQL
Function geof:ehContains, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehCoveredBy, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehCovers, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehDisjoint, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehEquals, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehInside, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehMeet, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:ehOverlap, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.Requires an Elasticsearch cluster with the DeleteByQuery plugin.
A
SailFactory that creates LuceneSails based on RDF configuration data.
An RDF4J SailStore persisted to Elasticsearch.
A
SailFactory that creates ElasticsearchStores based on RDF
configuration data.Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0.
An immutable empty BindingSet.
An iterator that does not contain any elements.
An iterator that does not contain any elements.
Blocks access to the statements of the model, allowing only changes to the model's namespaces.
Algebra construct representing an empty join.
Algebra construct representing an empty union.
A generic interface to mark some TupleExpr as empty.
A tuple expression that contains zero solutions.
EmptyStatementPattern represents a statement that cannot produce any results for the registered endpoints.
The SPARQL built-in
Function ENCODE_FOR_URI, as defined in
SPARQL Query Language for RDFStructure to maintain endpoint information, e.g.
Base implementation for an
Endpoint.A wrapper for managed
RepositoryConnections which makes sure that EndpointBase.ManagedRepositoryConnection.close() is a no-op, i.e.Classify endpoints into remote or local ones.
Additional marker interface for Endpoint Configurations.
Utility class providing various methods to create Endpoints to be used as federation members.
EndpointManager is the singleton instance that manages available
Endpoints.Generic interface to create
Endpoints from a repository information.Information about the type of an endpoint
The GeoSPARQL
Function geof:envelope, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.In/Out Parameter for
SparqlQueryEvaluator to make it independend from things like the serlvet api.Supplies various query model statistics to the query engine/optimizer.
Enum to support multiple different EvaluationStatistics implementations.
A wrapper around a data structure to support evaluation statistics that need to be notified of added or removed
statements.
Factory for
EvaluationStrategys.Test cases for behavior of
DefaultEvaluationStrategy and QueryEvaluationMode on base Sail
implementations.Vocabulary constants for the 'http://example.org/' namespace.
RDF Tutorial example 01: Building a simple RDF Model using Eclipse RDF4J
RDF Tutorial example 02: Building a simple RDF Model using the RDF4J ModelBuilder
RDF Tutorial example 03: Datatyped literals
RDF Tutorial example 04: Language tags
RDF Tutorial example 05: Adding blank nodes to an RDF Model.
RDF Tutorial example 06: Writing an RDF model in RDF/XML syntax
RDF Tutorial example 07: Writing an RDF model in Turtle syntax
RDF Tutorial example 08: Reading a Turtle syntax file to create a Model
RDF Tutorial example 09: Reading a Turtle syntax file to create a Model
RDF Tutorial example 10: Getting all values of a property for a particular subject.
RDF Tutorial example 11: Getting a single property value for a particular subject.
RDF Tutorial example 12: Building a Model with named graphs
RDF Tutorial example 13: Adding an RDF Model to a database
RDF Tutorial example 14: Adding an RDF file directly to the database
RDF Tutorial example 15: executing a simple SPARQL query on the database
RDF Tutorial example 16: executing a SPARQL CONSTRUCT query on the database
Deprecated.
Convenience functions to handle exceptions.
An
ArbitraryLengthPath node which can be evaluated at a single node.Represents a group of
ExclusiveTupleExpr that can only produce results at a single endpoint, the
StatementSource.A simple non-reentrant lock.
A simple reentrant lock that allows other threads to unlock the lock.
Represents a StatementPattern that can only produce results at a single endpoint, the owner.
Interface representing nodes that can exclusively be evaluated at a single
StatementSource.A specialized optimizer which identifies and marks
ExclusiveTupleExpr.A specialization of
ExclusiveTupleExpr which provides definitions how the expressions can be rendered to a
sub-query.An example custom SPARQL function that detects palindromes that already exist in the database.
Checks whether the wrapped Query produces any results.
Test for queries using EXISTS
This feature is in an experimental state: its existence, signature or behavior may change without warning from one
release to the next.
This is an experimental feature.
The different levels that the query explanation can be at.
This is an experimental feature.
Export triples to file
View used to export statements.
A SPARQL expression.
A class with static methods to create SPARQL expressions.
Deprecated, for removal: This API element is subject to removal in a future version.
Use
DefaultEvaluationStrategy instead.Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0 - use
DefaultEvaluationStrategyFactory instead.ExtensibleDirectEvaluationStatistics provides evaluation statistics by using the default implementation.
ExtensibleDirectEvaluationStatistics provides evaluation statistics by directly querying the underlying data source.
ExtensibleDynamicEvaluationStatistics aims to keep an internal estimate of the cardinality of various statement
patterns.
A store where the backing storage can be implemented by the user.
An extension operator that can be used to add bindings to solutions whose values are defined by
value expressions.Implements the 'federate' command for the RDF4J Console.
Specialized
DescribeIteration for evaluation of DESCRIBE queries in the federation.Specialized
DescribeOperator Node for maintaining QueryInfo.FederatedService to allow for customized evaluation of SERVICE expression.
The
FederatedServiceResolver is used to manage a set of FederatedService instances, which are used to
evaluate SERVICE expressions for particular service Urls.Interface used by
SailFactory and
RepositoryFactory that can make external SERVICE calls.Context to maintain the state of the current federation
Base class for the Evaluation strategies.
Stateful
EvaluationStatistics providing information for evaluating a given query in
FederationEvalStrategy.optimize(org.eclipse.rdf4j.query.algebra.TupleExpr, EvaluationStatistics, org.eclipse.rdf4j.query.BindingSet)Factory class for retrieving the
FederationEvalStrategy to be used.The FederationManager manages all modules necessary for the runtime behavior.
The Federation type definition: Local, Remote, Hybrid
FedX serves as implementation of the federation layer.
A specialization of
ArbitraryLengthPath to maintain the QueryInfoAbstraction of a
SailBooleanQuery which takes care for tracking the
FedXRepositoryConnection.BINDING_ORIGINAL_MAX_EXECUTION_TIME during evaluation.Configuration class for FedX
An implementation of RepositoryConnection that uses
FederationEvalStrategy to evaluate provided queries.A default implementation for
AbstractSail.Interface for a cost model used in
StatementGroupAndJoinOptimizer.Abstraction of a
Dataset to provide additional information for the evaluation of a query.Base class for any FedX Exception.
FedX initialization factory methods for convenience: methods initialize the
FederationManager and all
required FedX structures.Abstraction of a
SailGraphQuery which takes care for tracking the
FedXRepositoryConnection.BINDING_ORIGINAL_MAX_EXECUTION_TIME during evaluation.Interface for any FedX optimizer
A specialized BingingSet that can only hold the start and end values of a Path.
Exception to be thrown if during query evaluation a data source is not reachable, i.e.
Specialized variants of
QueueCursor which avoids converting any exception if it is already of
typeQueryEvaluationException.A special
SailRepository which performs the actions as defined in FedXRepositoryConnection.A
RepositoryImplConfig to configure FedX for the use in the RDF4J workbench.Builder for
FedXRepositoryConfigA special
SailRepositoryConnection which adds the original query string as binding to the returned query.A
RepositoryFactory to use FedX in settings with a repository manager, e.g.Wrapper for the
FedXRepository in order to allow for lazy initialization.Base class for any FedX Exception.
Base class providing all common functionality for FedX StatementPatterns
Interface marking known FedX algebra nodes.
Abstraction of a
SailTupleQuery which takes care for tracking the
FedXRepositoryConnection.BINDING_ORIGINAL_MAX_EXECUTION_TIME during evaluation.General utility functions
A specialization of
ZeroLengthPath that keeps track of QueryInfo and statement sources.An evaluation step used for
FedXZeroLengthPath.An iteration to evaluated
FedXZeroLengthPathAbstract representation of a file format.
A special
ServiceRegistry for FileFormat related services.File log reader
Utility methods for operations on Files.
The FILTER operator, as defined in SPARQL Query
Language for RDF.
Thrown if a filter could not be converted.
Applies a basic graph pattern filter to what triples can be see.
FilterExpr maintains information for a particular FILTER expression.
Filters iteration according to specified filterExpr and inserts original bindings into filtered results.
Filters iteration according to specified filterExpr.
A wrapper for an Iteration that filters the statements against a pattern similar to getStatements(Resource subject,
IRI predicate, Value object, Resource...
A CloseableIteration that wraps another Iteration, applying a filter on the objects that are returned.
A CloseableIterator that wraps another iterator, applying a filter on the objects that are returned.
Filter optimizer to push down FILTER expressions as far as possible.
Optimizes a query model by pushing
Filters as far down in the model tree as possible.Tests for variable scoping issues with SPARQL FILTER clauses.
Expressions implementing this interface can apply some
FilterValueExpr during evaluation.Various utility functions to handle filter expressions.
Interface to indicate filter expressions.
Deprecated.
use
FloatCast instead.A
Function that tries to cast its argument to an
xsd:float.The SPARQL built-in
Function FLOOR, as defined in
SPARQL Query Language for RDFDefines constants for the standard XPath functions.
Constants for FOAF primitives and for the FOAF namespace.
Resources here are defined according to the FOAF specs on http://xmlns.com/foaf/spec/, version 0.99, 14 January 2014
Resources here are defined according to the FOAF specs on http://xmlns.com/foaf/spec/, version 0.99, 14 January 2014
A SPARQL Dataset specifier.
A query function, which can be a built-in function in the query language, or a custom function as documented in the
SPARQL 1.1 Query Language Recommendation.
A call to an (external) function that operates on zero or more arguments.
A ServiceRegistry for implementations of the
Function interface.Generic optimizer
Tasks: - Collect information (hasUnion, hasFilter, hasService) - Collect all statements in a list (for source
selection), do not collect SERVICE expressions - Collect all Join arguments and group them in the NJoin structure for
easier optimization (flatten)
This is an experimental feature.
An implementation of the Statement interface with support for Java Generics.
An implementation of a datatype handler that can process GeoSPARQL datatypes.
Either supplies a statement matching the given pattern, or
Optional.empty() otherwise.Handles requests for manipulating the named graphs in a repository.
Denotes a query element that can be used as a Graph Name
A graph pattern consisting of (required and optional) tuple expressions, binding assignments and boolean constraints.
Denotes a SPARQL Graph Pattern
A class with static methods to create graph patterns.
A representation of a query result as a sequence of
Statement objects.View used to render graph query results.
A SPARQL Graph Template, used in Construct queries
Converts graph results into a binding set iteration
Group represents a logical group of views in a NavigationModel.
A tuple operator that groups tuples that have a specific set of equivalent variable bindings, and that can apply
aggregate functions on the grouped results.
Denotes a groupable SPARQL query element (can be used in a
GROUP BY clause)A SPARQL Group By clause
Tests on SPARQL GROUP BY
The GROUP_CONCAT operator as defined in http://www.w3.org/TR/sparql11-query/#aggregates
Retrieves the original bindings for the particular result
A tuple operator that groups tuples that have a specific set of equivalent variable bindings, and that can apply
aggregate functions on the grouped results.
GZip-related utilities.
Class supplying access to a hash file.
Abstract hash function
Operator for a hash join of tuple expressions.
Generic hash join implementation suitable for use by Sail implementations.
A SPARQL Having clause
RDF parser for HDT v1.0 files.
An
RDFParserFactory for HDT parsers.An element in an HTTP header value.
Help interface
An artificial holder node serving as parent holder to allow replacement.
The SPARQL built-in
Function HOURS, as defined in
SPARQL Query Language for RDFTupleQuery specific to the HTTP protocol.
Convenience utility class offering helper methods to configure
HttpClients and HttpClientBuilders.Common interface for objects, such as Repository and RepositoryConnection, that are dependent on
HttpClient.Manager for remote HTTP sessions using a
HttpClient.HTTP-related exception that includes the relevant HTTP status code.
GraphQuery implementation specific to the HTTP protocol.
A repository that serves as a client for a remote repository on an RDF4J Server.
A
RepositoryFactory that creates HTTPRepositorys based on RDF configuration data.Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0.
Class encapsulates configuration settings specific for
HTTPRepository.TupleQuery specific to the HTTP protocol.
Update specific to the HTTP protocol.
Constants for the Hydra Core Vocabulary.
Class supplying access to an ID file.
The IF function, as defined in SPARQL 1.1 Query.
Thrown if something is wrong while constructing the query string.
Checks whether a certain value is contained in a set of results produced by a query.
A zero-cost bloom filter that always returns true (no negatives).
An exception indicating that a string could not be parsed into an operation of the expected type by the parser.
A writer that adds indentation to written text.
Inserts original bindings into the result.
Inserts original bindings into the result.
Inserts original bindings into the result.
Specifies a filter, which determines whether a statement should be included in the keyword index when performing
complete reindexing.
A way to signal which index is in use for a specific iterator (e.g.
An extension of the
SailConnection interface offering methods that can be used by inferencers to store and
remove inferred statements.An extension of ConnectionWrapper that implements the
InferencerConnection interface.Inserts data from the specified TTL file into the repository at startup.
An simplified implementation of the RecordCache that keeps everything in memory.
Adds more bindings to each of the results.
Inserts original bindings into the result.
The SPARQL Insert Data Query
A
Function that tries to cast its argument to an
xsd:int .Deprecated.
use
IntegerCast insteadA
Function that tries to cast its argument to an
xsd:integer .Abstract superclass for
CastFunctions that cast their arguments to an xsd:integer or one of its derived
types.An extension of
SimpleLiteral that stores an integer value using a BigInteger object.An extension of MemLiteral that stores an integer value to avoid parsing.
A
RioSetting with a Integer value.Wrapper that notifies interceptors of events on RepositoryConnections before they happen.
Wrapper that notifies interceptors of events on Repositories before they happen.
This feature is intended for internal use only and is not considered part of the public API: its existence, signature
or behavior may change without warning from one release to the next.
An IRI implementation that interns the stringValue so that two objects can be compared by their stringValue
reference.
The GeoSPARQL
Function geof:intersection, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The INTERSECT set operator, which returns the intersection of the result sets of two tuple expressions.
A step that prepares the arguments of an Intersection operator before execution.
An Iteration that returns the intersection of the results of two Iterations.
Tests on the IN operator.
Magic properties are normally treated as
TupleFunctions acting on the subject of a statement.Utility methods for I/O working with Readers, Writers, InputStreams and OutputStreams.
Denotes an RDF IRI
An Internationalized Resource Identifier (IRI).
The IRI function, as defined in SPARQL 1.1 Query Language
for RDF.
IsNumeric - Boolean operator determining if the supplied expression represents a numeric value.
A Transaction Isolation Level.
Enumeration of Transaction
IsolationLevels supported by RDF4J.Test that the Repository correctly supports claimed isolation levels.
Function that return "true"^^xsd:boolean if its argument is RDF-star Triple otherwise return "false"^^xsd:boolean the
function's IRI uses RDF namespace to match the other functions in the package
An iterating implementation of the
GraphQueryResult interface.An iterating implementation of the
TupleQueryResult interface.This class consists exclusively of static methods that operate on or return Iterations.
Deprecated.
A natural join between two tuple expressions.
Base class for any join parallel join executor.
Base class for any join parallel join executor.
Interleaved join iterator.
Converts a JSON-LD object to a hierarchical form
Specifies constants to identify various modes that are relevant to JSONLD documents.
An
RDFParser for JSON-LD 1.1An
RDFParser that links to JSONLDInternalTripleCallback.An
RDFParserFactory that creates instances of JSONLDParser.An
RDFParserFactory that creates instances of JSONLDParser.Settings that can be passed to JSONLD Parsers and Writers.
An RDFWriter for JSON-LD 1.1
An RDFWriter that links to
JSONLDInternalRDFParser.An
RDFWriterFactory that creates instances of JSONLDWriter.An
RDFWriterFactory that creates instances of JSONLDWriter.Generic JSON settings, mostly related to Jackson Features.
JTS-enabled implementation of spatial algebra, with full support for polygon-related geospatial functions
The LABEL function, which selects the label of literals.
The LANG function, as defined in SPARQL Query Language for
RDF.
Checks whether a language tag (e.g.
An interface defining methods related to verification and normalization of language tags.
Registry of
LanguageHandlers.An enumeration used to define constants used with the
BasicParserSettings.LARGE_LITERALS_HANDLING parser
setting.A specialized
CloseableIteration that allows repetitive iterations after resetting the cursor using
LazyMutableClosableIteration.resetCursor().A ValidationReport that will defer calculating any ValidationResults until the user asks for them
Constants for the Linked Data Platform.
The LeftJoin operator, as defined in SPARQL Query
Language for RDF.
A lexical RDF Term Comparator, this class does not compare numerically and is therefore a bit faster than a SPARQL
compliant comparator.
An Iteration that limits the amount of elements that it returns from an underlying Iteration to a fixed amount.
An optimizer that attempts to push upper limits into BGPs of the query.
Various tests on linear execution of updates.
Hash table based implementation of the
Model interface.Creates
LinkedHashModel.http://jena.hpl.hp.com/ARQ/list#.
A List-based implementation of the
BindingSet interface.ValueOperator that verifies if the first of its arguments occurs in any of the subsequent arguments.
An RDF-1.1 literal consisting of a label (the lexical value), a datatype, and optionally a language tag.
Various utility methods related to
Literal.An exception thrown by
Literals when specific conditions are not met.A SAIL implementation using LMDB for storing and querying its data.
Connection to an
LmdbStore.A
SailFactory that creates LmdbStores based on RDF configuration data.Defines constants for the LmdbStore schema which is used by
LmdbStoreFactorys to initialize
LmdbStores.Load command
A SPARQL LOAD Query
The LOCAL NAME function, which selects the local name of URIs.
An implementation of the
RepositoryManager interface that operates directly on the repository data files in
the local file system.A lock on a specific monitor that can be used for synchronization purposes.
Extension of the Lock.Supplier interface to support tryLock().
Functional interface for supplying a lock with support for InterruptedException.
Automatically log and release locks that are no longer referenced and will be garbage collected.
Configuration options for diagnostic features of the ReadWriteLockManager implementations to help debug locking
issues.
An Iteration that holds on to a lock until the Iteration is closed.
Manages a set of non-exclusive locks.
Interface to support monitoring and cleaning of locks.
Full tracking of locks with simple deadlock detection and logging as well as automatic release of abandoned locks
(same as LockCleaner).
Constants for the ISA Programme Location Core Vocabulary.
Configuration settings for application logging.
Handler to convert java.util.logging events to SLF4J logging events.
Generic log level enumeration
Console log level setting.
Log reader interface
Log record interface
A
IntegerCastFunction that tries to cast its argument to an xsd:long .A
RioSetting with a Long value.An Iteration that looks one element ahead, if necessary, to handle calls to
LookAheadIteration.hasNext().The SPARQL built-in
Function LCASE, as defined in
SPARQL Query Language for RDFA LuceneIndex is a one-stop-shop abstraction of a Lucene index.
LuceneIndex which uses a NIOFSDirectory instead of MMapDirectory to avoid the JVM crash (see
http://
stackoverflow.com/questions/8224843/jvm-crashes-on-lucene-datainput- readvint).
Deprecated.
A LuceneSail wraps an arbitrary existing Sail and extends it with support for full-text search on all Literals.
Deprecated.
This feature is for internal use only: its existence, signature or behavior may change without warning
from one release to the next.
Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG.Lucene instead.A
SailFactory that creates LuceneSails based on RDF configuration data.LuceneSailSchema defines predicates that can be used for expressing a Lucene query in a RDF query.
Platform implementation for Mac OS X platforms.
An exception indicating that a query could not be processed by the query parser, typically due to syntax errors.
An exception thrown by the SPIN parser when it encounters malformed SPIN rules, constraints or constructors.
A specialized
RepositoryEndpoint where the lifecycle of the Repository is managed by this endpoint,
i.e.A Map-based implementation of the
BindingSet interface.Deprecated.
This feature is for internal use only: its existence, signature or behavior may change without warning
from one release to the next.
A mathematical expression consisting an operator and two arguments.
A utility class for evaluation of mathematical expressions on RDF literals.
Maven-related utility methods.
The SPARQL built-in
Function MD5, as defined in
SPARQL Query Language for RDFA MemoryStore-specific extension of BNodeImpl giving it node properties.
A MemoryStore-specific implementation of URI that stores separated namespace and local name information to enable
reuse of namespace String objects (reducing memory usage) and that gives it node properties.
A MemoryStore-specific extension of Literal giving it node properties.
An implementation of the Sail interface that stores its data in main memory and that can use a file for persistent
storage.
Implementation of a Sail Connection for memory stores.
A
SailFactory that creates MemoryStores based on RDF configuration data.Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG.Mem instead.A MemoryStore-specific extension of Resource giving it subject statements.
A MemStatement is a Statement which contains context information and a flag indicating whether the statement is
explicit or inferred.
A StatementIterator that can iterate over a list of Statement objects.
A cache for MemStatementIterator that tracks how frequently an iterator is used and caches the iterator as a list
A dedicated data structure for storing MemStatement objects, offering operations optimized for their use in the
memory Sail.
A MemoryStore-specific implementation of
Triple.An Iteration that can iterate over a list of
Triple objects.A MemoryStore-specific extension of the Value interface, giving it node properties.
A factory for MemValue objects that keeps track of created objects to prevent the creation of duplicate objects,
minimizing memory usage as a result.
Interceptor that inserts some commonly used values into the model.
An Iteration that returns the results of an Iteration (the left argument) minus the results of another Iteration (the
right argument).
Test for queries using MINUS
The SPARQL built-in
Function MINUTES, as defined in
SPARQL Query Language for RDFBuilder to facilitate easier creation of new RDF
Model objects via a fluent interface.Collects a stream of Statements into a Model.
Factory to create empty
Model implementations.An abstract test class to test the handling of namespaces by
Model implementations.Abstract test suite for implementations of the
Model interfaceThe SPARQL Modify Queries
Implementation supporting the following monitoring features:
- monitor remote requests per endpoint - maintain a query backlog using
QueryLogThe SPARQL built-in
Function MONTH, as defined in
SPARQL Query Language for RDFA SPARQL MOVE Query
Date range-enabled wrapper for FileLogReader.
A "multi-projection" that can produce multiple solutions from a single set of bindings.
A BindingSet is a set of named value bindings, which is used a.o.
An implementation of the
TupleQueryResult interface that stores the complete query result in memory.An
RDFParserFactory for N3 parsers.JUnit test for the N3 parser that uses the tests that are available
online.
An implementation of the RDFWriter interface that writes RDF documents in N3 format.
An
RDFWriterFactory for N3 writers.A namespace, consisting of a namespace name and a prefix that has been assigned to it.
The NAMESPACE function, which selects the namespace of URIs.
Handles requests for manipulating a specific namespace definition in a repository.
A utility class to perform operations on
Namespaces.Handles requests for the list of namespace definitions for a repository.
Utility class for named threads
Comparator:
partial order: OwnedStatementSourcePatternGroup -> OwnedStatementSourcePattern -> StatementSourcePattern
An abstract superclass for N-ary value operators.
Graph information for RDF4J
NativeStore initialization.A SAIL implementation using B-Tree indexing on disk for storing and querying its data.
A
SailFactory that creates NativeStores based on RDF configuration data.Provider for an Endpoint that uses a RDF4J
NativeStore as underlying repository.Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG.Native instead.JSTL functions for navigation.
Interceptor that inserts the navigation model for the current Spring view into the model.
NavigationModel represents the navigation structure of a web application.
NavigationNode represents a node in a NavigationModel.
XPath-based parser for NavigationModel configuration files.
Introduce a parser capable of parsing Newline Delimited JSON-LD, where each line is a serialized JSON-LD record.
Introduce a parser capable of parsing Newline Delimited JSON-LD, where each line is a serialized JSON-LD record.
An
RDFParserFactory that creates instances of NDJSONLDParser.An
RDFParserFactory that creates instances of NDJSONLDParser.A
Function that tries to cast its argument to an
xsd:negativeInteger .File wrapper that protects against concurrent file closing events due to e.g.
A tuple expression that represents an nary-Join.
A factory that produces globally unique IDS which are used as node identifiers, e.g.
A
Function that tries to cast its argument to an
xsd:nonNegativeInteger .A
Function that tries to cast its argument to an
xsd:nonPositiveInteger .This PlanNode takes a stream of Tuples like: (ex:companyA, "Company A"@en).
A boolean NOT operator operating on a boolean expressions.
NotifyingLocalRepositoryManager extends LocalRepositoryManager with support for registering listeners.
This broadcaster is used by the RepositoryBroadcaster to wrap the delegate repository connection.
This notifying decorator allows listeners to register with the repository or connection and be notified when events
occur.
An interface for
Sails that notify registered SailChangedListeners of changes in the data in the
Sail.A connection to an RDF Sail object.
An implementation of the
NotifyingSailConnection interface that wraps another
NotifyingSailConnection object and forwards any method calls to the wrapped
transaction.An implementation of the StackableSail interface that wraps another Sail object and forwards any relevant calls to
the wrapped Sail.
The SPARQL built-in
Function NOW, as defined in
SPARQL Query Language for RDFRDF parser implementation for the
N-Quads RDF format, extending the Rio N-Triples parser.An
RDFParserFactory for N-Quads parsers.RDFWriter implementation for the
N-Quads RDF format.An
RDFWriterFactory for N-Quads writers.RDF parser for N-Triples files.
An
RDFParserFactory for N-Triples parsers.ParserSettings for the N-Triples parser features.
ParserSettings for the N-Triples parser features.
Utility methods for N-Triples encoding/decoding.
An implementation of the RDFWriter interface that writes RDF documents in N-Triples format.
An
RDFWriterFactory for N-Triples writers.WriterSettings for the N-Triples writer features.
WriterSettings for the N-Triples writer features.
Base class for any nary-tuple expression
An extension of
AbstractLiteral that stores a numeric value to avoid parsing.An extension of MemLiteral that stores a numeric value to avoid parsing.
A tuple expression that represents an nary-Union.
Generic utility methods related to objects.
Constants for the Open Digital Rights Language.
An Iteration that skips the first offset elements from an underlying Iteration.
Open command
Denotes an element that can be used as an operand to an
ExpressionAn operation (e.g.
Tests on OPTIONAL clause behavior.
A boolean OR operator operating on two boolean expressions.
An order operator that can be used to order bindings as specified by a set of value expressions.
Denotes an orederable SPARQL query element (can be used in a
ORDER BY clause)A SPARQL Order By clause
A
Comparator on BindingSets that imposes a total ordering by examining supplied Order
elements (i.e.An ascending or descending order condition
Sorts the input and optionally applies limit and distinct.
Moves the Order node above the Projection when variables are projected.
Constants for the W3C Organization Ontology.
A non-subquery query.
Constants for OWL / OWL 2 primitives and for the OWL / OWL 2 namespace.
Class responsible for repository access for managing
Painting entities.An example custom SPARQL function that detects palindromes
A task implementation representing a bound join, see
FederationEvalStrategy.evaluateBoundJoinStatementPattern(StatementTupleExpr, List) for further details on the
evaluation process.A task implementation representing a grouped bound check.
Interface for any parallel cursor, i.e.
Base class for common parallel executors such as
JoinExecutorBase and UnionExecutorBase.A task implementation to retrieve statements for a given
StatementPattern using the provided triple source.A task implementation representing a join, i.e.
A task implementation representing a join, i.e.
A task implementation representing a prepared union, i.e.
A task implementation representing a prepared union, i.e.
Parallel executor for
FedXService nodes, which wrap SERVICE expressions.A task implementation representing the evaluation of a SERVICE which is to be evaluated using block input.
Interface for any parallel task that can be performed in Scheduler implementations.
A task implementation representing a UNION operator expression to be evaluated.
A task implementation representing a statement expression to be evaluated.
A parameter consisting of a key and a value, which are both strings.
Checks
QueryModelNode.getParentNode() references that have become inconsistent with the actual algebra tree
structure due to optimization operations.Cleans up
QueryModelNode.getParentNode() references that have become inconsistent with the actual algebra
tree structure due to optimization operations.A query formulated in the OpenRDF query algebra that produces a boolean value as its result.
A ParsedGraphQuery to identify DESCRIBE queries.
A query forumalated in the OpenRDF query algebra that produces an RDF graph (a set of statements) as its result.
Represents an Internationalized Resource Identifier (IRI) reference.
Abstract superclass of all operations that can be formulated in a query language and parsed by the query parser.
Abstract super class of all query types that a query parser can generate.
A query formulated in the OpenRDF query algebra that produces a set of tuples as its result.
A parsed update sequence formulated in the OpenRDF query algebra.
A ParseErrorListener that collects Rio parse errors in the sequence they were collected in.
An interface defining methods for receiving warning and error messages from an RDF parser.
A ParseErrorListener that reports Rio parser errors to the SLf4J Logging framework.
A listener interface for listening to the parser's progress.
Benchmark for parsing a file created through
DataSetGenerator with BlackHoleRDFHandler.A container object for easy setting and passing of
RDFParser configuration options.Marker
TupleExpr that is used from FedXTupleQuery.evaluate(TupleQueryResultHandler) to allow for
passing through of results to the handler.A specialized BingingSet that can only hold the start and end values of a Path.
Excludes an Iterator based on a given basic graph pattern.
An iterator that allows to peek at the next element without consuming it.
Factory class for producing instances of
ShaclSail.TransactionSettings.PerformanceHint from string values.The Platform interface defines methods that are expected to differ slightly between operating systems, e.g.
Deprecated.
since 4.0.
PlatformFactory creates a Platform instance corresponding with the current platform.
Uses the delegate factory to actually obtain connections and provides these connections, managing an internal pool.
AggregateFunctionFactory implementation that provides AggregateFunction used for processing
population standard deviation.AggregateFunctionFactory implementation that provides AggregateFunction used for processing
population variance.A
Function that tries to cast its argument to an
xsd:positiveInteger .Platform implementation for gnome environments under UNIX.
Platform implementation for KDE environments under UNIX.
Platform implementation for *nix platforms.
Node representing a precompiled query.
UUID source that generates the same sequence of UUIDs by counting up a
long counter and using that as
the value for generating a UUID.A SPARQL Prefix declaration
A collection of SPARQL Prefix declarations
Processes the prefix declarations in a SPARQL query model.
Namespace prefix setting
Prints available command and options to the console.
Print command
Print the bindings of the inner iteration to stdout, however maintain a copy, which is accessible through this
iteration.
Denotes a projectable query element (can be SELECT'ed)
A generalized projection (allowing the bindings to be renamed) on a tuple expression.
A SPARQL Projection
Projection elements control which of the selected expressions (produced by the WHERE clause of a query) are returned
in the solution, and the order in which they appear.
If a projection node in the algebra does not contribute or change the results it can be removed from the tree.
Class controlling various logging properties such as the amount of lock tracking that is done for debugging (at the
cost of performance).
Deprecated.
Tests on SPARQL property paths.
Defines the action a particular transaction update is executing.
Deprecated.
Handles requests for protocol information.
Simple resolver for Exceptions: returns the correct response code and message to the client.
Interceptor for protocol requests.
Utilities to help with the transition between HTTP requests/responses and values expected by the protocol.
Constants for the Provenance Ontology.
Repository implementation that takes a
RepositoryResolver instance and the id of a managed repository, and delegate all
calls through to the given repository.Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG instead.Utility class for handling proxy connection settings.
A class with static methods to create SPARQL queries
A query on a repository that can be formulated in one of the supported query languages (for example SPARQL).
The base class for all SPARQL Queries.
The different types of queries that RDF4J recognizes: boolean queries, graph queries, and tuple queries.
Various static functions for query handling and parsing (alegbra expression).
An implementation of the
BindingSet interface that is used to evalate query object models.Callback for configuring/customising a
QueryContext.Makes a
QueryContext available during iteration.Denotes a SPARQL Query Element
A logical collection of query elements.
A type-safe enumeration for query error types.
A QueryEvaluationContext stores values and methods that are valid throughout the lifetime of a query execution.
An exception indicating that the evaluation of a query failed.
The Query Evaluation Mode determines the behaviour of the SPARQL query engine on RDF4J repositories.
A Step that may need to be executed in a EvaluationStrategy.
Utility class that removes code duplication and makes a precompiled QueryEvaluationStep available as an iteration
that may be created and used later.
This class will take over for QueryEvaluationUtil.
Abstract query evaluator command
Evaluates queries for QueryServlet.
Utility class for generating query objects.
Structure to maintain query information during evaluation, is attached to algebra nodes.
An exception indicating that the evaluation of a query has been interrupted, for example because it took too long to
complete.
A query optimizer that re-orders nested Joins.
A type-safe enumeration for RDF query languages such as
QueryLanguage.SPARQL.Convenience class which writes the query backlog a logger with the name "QueryLog".
QueryManager to manage queries.
Main interface for all query model nodes.
A query optimizer that (partially) normalizes query models to a canonical form.
QueryModelVisitor implementation that "prints" a tree representation of a query model.
Convert TupleExpr (QueryModelNode) to GenericPlanNode for the Query.explain(...) feature.
An interface for query model visitors, implementing the Visitor pattern.
Interface used by
EvaluationStrategys to optimize the TupleExpr prior to evaluating the query.A pipeline of
QueryOptimizers that, when executed in order on a TupleExpr, convert that
TupleExpr to a more optimal query execution plan.An RDF query parser translate query strings in some query language to OpenRDF query models.
A QueryParserFactory returns
QueryParsers for a specific query language.A registry that keeps track of the available
QueryParserFactorys.Utility class for creating query parsers and parsing queries in various query languages.
A SPARQL Query Pattern (
WHERE clause)Monitoring facility to maintain the query execution plan in a variable local to the executing thread.
Use prefixes when querying.
A generic interface for executing queries over a
TripleSource.A simple lexer that tokenizes a syntactically legal input SPARQL query string on prolog items (prefixes, base
declarations, IRIs, comments, and syntactical tokens such as keywords, opening and closing brackets, and hashes).
Interface to access the
QueryInfo from all FedX Algebra nodes.
Interface for RDF4J-based query renderers
Interface used by the
AbstractRepositoryController to process a
query.Super type of all query result types (TupleQueryResult, GraphQueryResult, etc.).
An implementation of the
QueryResultHandler interface that is able to collect a single result from either
Boolean or Tuple results simultaneously.The base class of all file formats that represent the results of queries.
The super class of all handlers for processing query results.
The super class of exceptions originating from
QueryResultHandler implementations.Class offering utility methods related to query results.
An iteration which wraps the final result and in case of exceptions aborts query evaluation for the corresponding
query in fedx (potentially subqueries are still running, and jobs are scheduled).
A parse exception that can be thrown by a query result parser when it encounters an error from which it cannot or
doesn't want to recover.
Base interface for parsers of query results in both boolean and tuple forms.
Utility methods related to query results.
Base class for rendering query results.
The base interface for writers of query results sets and boolean results.
A semantics-less query model node that is used as the root of query model trees.
A QuerySpec holds information extracted from a TupleExpr corresponding with a single Lucene query.
Param in a Lucene query extracted in
QuerySpecA QueryInterpreter creates a set of QuerySpecs based on Lucene-related StatementPatterns that it finds in a
TupleExpr.
Provides an interface to the private repository with the saved queries.
Helper class for substituting in variables to query templates for the purpose of saving and retrieving user queries
to a repository local to the workbench.
Various static functions for query handling and parsing.
Utility class to perfom query string manipulations as used in
SPARQLTupleQuery, SPARQLGraphQuery and
SPARQLBooleanQuery.A step in the query evaluation that works on ValueExpresions.
A minimal implementation that falls calls a function that should return a value per passed in bindingsets.
A QueryValueEvalationStep that will return the same constant value throughout the query execution.
A minimal implementation that falls is known to throw an ValueExprEvaluationException.
A minimal implementation that falls back to calling evaluate in the strategy.
Makes working with a queue easier by adding the methods
QueueIteration.done() and QueueIteration.toss(Exception) and
automatically converting the exception into a QueryEvaluationException with an appropriate stack trace.Makes working with a queue easier by adding the methods
QueueIteration.done() and QueueIteration.toss(Exception) and after
converting the Exception to the required type using QueueIteration.convert(Exception).The SPARQL built-in
Function RAND, as defined in
SPARQL Query Language for RDFThe GeoSPARQL
Function geof:rcc8dc, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8ec, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8eq, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8ntpp, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8ntppi, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8po, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8tpp, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:rcc8tppi, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.A class with static methods to create basic
SparqlBuilder RDF objects from either string values or RDF4J
Model objects.Constants for RDF primitives and for the RDF namespace.
Defines constants for the RDF4J namespace.
Exception indicating a configuration problem in an RDF4J component.
Base class for DAOs providing CRUD functionality.
General superclass of all unchecked exceptions that parts of RDF4J can throw.
A
SPARQLProtocolSession subclass which extends the standard SPARQL 1.1 Protocol with additional
functionality, as documented in the RDF4J REST API.Spring configuration for use in unit tests.
A selection of parser settings specific to RDFa parsers.
Enumeration for tracking versions of the RDFa specification to specify processing capabilities of RDFa modules.
Denotes an RDF Blank Node
an anonymous blank node
a labeled blank node, of the form "_:
label"A blank node representing a resource that matches the contained set of predicate-object lists
Utilities for working with RDF Collections and converting to/from Java
Collection classes.Utilities for working with RDF Containers and converting to/from Java
Collection classes.An implementation of a datatype handler that can process
RDF built-in datatypes.Represents the concept of an RDF data serialization format.
An interface defining methods related to RDF data handling.
An exception that can be thrown by an RDFHandler when it encounters an unrecoverable error.
Convenience base class for RDF handlers that wrap one or more other RDF handler.
An RDFHandler that adds RDF data to a sail as inferred statements.
An RDFHandler that adds RDF data to a repository.
RDFParser implementation for the RDF/JSON formatAn
RDFParserFactory for RDF/JSON parsers.A selection of parser settings specific to RDF/JSON parsers.
A selection of parser settings specific to RDF/JSON parsers.
JUnit test for the RDFJSON Parser.
RDFWriter implementation for the RDF/JSON formatAn
RDFWriterFactory for RDF/JSON writers.A selection of writer settings specific to RDF/JSON parsers.
A selection of writer settings specific to RDF/JSON parsers.
Denotes an RDF literal
Represents an RDF boolean literal
Represents an RDF number literal
Represents an RDF string literal
Handles common I/O to retrieve and parse RDF.
A JUnit test for testing Sail implementations that store RDF data.
Denotes an element that can represent an object in a
TriplePatternA parse exception that can be thrown by a parser when it encounters an error from which it cannot or doesn't want to
recover.
An interface for RDF parsers.
A RDFParserFactory returns
RDFParsers for a specific RDF format.Helper methods that may be used by
RDFParser implementations.A registry that keeps track of the available
RDFParserFactorys.Denotes an element that can represent a predicate in a
TriplePatternA Predicate-Object List
An RDF predicate-object list collection
An RDFHandler that removes RDF data from a repository.
Denotes an RDF Resource
Constants for the RDF Vocabulary Description Language 1.0: RDF Schema
(RDFS)
An RDFHandler that adds RDF data to a sail.
This class benchmarks
RDFWriters in terms of output size given a number of datasets (see
RDFTestDataset.Test cases for RDF-star support in the Repository.
Utility methods for RDF-star triples.
A JUnit test for testing Sail implementations that store RDF data.
Denotes an element that can represent a subject in a
TriplePatternThis enum holds locations for RDF files from the web.
Denotes an RDF Value.
An interface for RDF document writers.
A RDFWriterFactory returns
RDFWriters for a specific RDF format.A registry that keeps track of the available
RDFWriterFactorys.A parser for XML-serialized RDF.
An
RDFParserFactory for RDF/XML parsers.JUnit test for the RDF/XML parser that uses the test manifest that is available
online.
An extension of RDFXMLWriter that outputs a more concise form of RDF/XML.
An
RDFWriterFactory for RDF/XML writers.An implementation of the RDFWriter interface that writes RDF documents in XML-serialized RDF format.
An
RDFWriterFactory for RDF/XML writers.ReaderMonitor holds IndexReader and IndexSearcher.
Default
WriteStrategy implementation for read only federations.A read/write lock manager with reader preference.
A lock manager that manages a multi-read, single-write lock.
An iterator that iterates over records, for example those in a BTree.
Removes consecutive duplicates from the object stream.
Takes a parentToReduce and filters away any tuples that have an active target that exists in reductionSource
Compares the string representation of a value expression to a pattern.
A query optimizer that replaces REGEX with
FunctionCalls that are equivalent operatorsThe GeoSPARQL
Function geof:relate, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.A manager for
Repositorys that reside on a remote server.Provider for an Endpoint that uses a RDF4J
HTTPRepository as underlying repository.Class holding information for RDF4J
HTTPRepository initialization.Experimental support for handling SHACL violations against a remote RDF4J server.
Test isolation behavior on removal operations
Operation that removes the namespace for a specific prefix.
Operation to remove statements matching specific pattern of subject, predicate and object.
Utility methods for rendering (parts of) SPARQL query strings.
The SPARQL built-in
Function REPLACE, as defined in
SPARQL Query Language for RDF.Utility for dealing with
Repository and RepositoryConnection objects.An RDF4J repository that contains RDF data that can be queried and updated.
A bloom filter for statements in a
Repository.Exception indicating a repository configuration problem.
Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG vocabulary instead.Main interface for updating data in and performing queries on an RDF4J
Repository.Interceptor interface for connection modification.
Listener interface for connection modification.
Delegates all calls to the delegate RepositoryConnection.
Handles queries and admin (delete) operations on a repository and renders the results in a format suitable to the
type of operation.
A specialized
Endpoint that has a reference to a configured Repository.Returns an
Endpoint for an already configured Repository.An exception thrown by classes from the Repository API to indicate an error.
A RepositoryFactory takes care of creating and initializing a specific type of
Repositorys based on RDF
configuration data.Federated Service wrapping the
Repository to communicate with a SPARQL endpoint.A
RepositoryImplConfig represents configuration details specific to a particular implementation of the
Repository interface.Repository meta-information such as its id, location, description.
Interceptor for repository requests.
Interceptor interface for Repository state changes.
Handles requests for the list of repositories available on this server.
Listener interface for Repository state changes.
Indicates that a Repository cannot be initialised because the configured persisted location is locked.
A manager for
Repositorys.A static access point to manage
RepositoryManagers and Repositories.Indicates that the current write operation did not succeed because the SAIL cannot be written to, it can only be read
from.
A registry that keeps track of the available
RepositoryFactorys.An interface used by
AbstractRepositoryController to process HTTP
request for creating or deleting a repository.An adapter interface to allow the
QueryRequestHandler,
RepositoryRequestHandler and
RepositoryController to get the repository for an HttpRequest.Gets local repositories using a simple identifier string.
Deprecated.
Interface used by factory classes that need access to other repositories by their id's.
Deprecated.
A suite of custom compliance tests on SPARQL query functionality for RDF4J Repositories.
Integration test suite for implementations of Repository.
Utility methods for comparing sets of statements (graphs) with each other.
A
DelegatingRepository implementation that, by default, forwards all method calls to its delegate.A
WriteStrategy to write to a designated Repository.A specialized
Endpoint that allows to resolve the repository using a RepositoryResolver.Graph information for a
ResolvableEndpoint where the Repository is looked up using the configured
RepositoryResolver.An
EndpointProvider for a ResolvableEndpoint.The supertype of all RDF resources (IRIs and blank nodes).
ResourceUtil is a utility class for retrieving resources (images, property-files, etc) from the classpath.
Wrapper for a TupleQueryResult, allowing the result to be replayed.
Wrapper for a TupleQueryResult, allowing the result to be replayed.
A language handler that can verify RFC3066 formatted language tags.
Static methods for parsing and writing RDF for all available syntaxes.
Superclass for
ParserConfig and WriterConfig.A RuntimeException indicating that a specific Rio parser/writer configuration setting is not supported.
An implementation of FileTypeDetector which uses the
RDFParserRegistry to find supported file types and their
extensions.Identifies a parser setting along with its default value.
Basic implementation of
RioSetting interface, without support for default override via system properties.The SPARQL built-in
Function ROUND, as defined in
SPARQL Query Language for RDFConstants for the W3C Registered Organization Vocabulary.
Constants for the Eclipse RDF4J SHACL Extensions.
Sail (Storage And Inference Layer) is an interface for RDF storage.
Event object that is send to
SailChangedListeners to indicate that the contents of the Sail that sent the
event have changed.An interface for objects that want to be notified when the data in specific Sail objects change.
Common interface to objects that throw
SailException on close.Tests concurrent read and write access to a Sail implementation.
Exception indicating a sail configuration problem.
Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG instead.An exception thrown by some methods in Sail to indicate that a requested isolation level could not be fulfilled.
A connection to an RDF Sail object.
An implementation of the SailConnection interface that wraps another SailConnection object and forwards any method
calls to the wrapped connection.
A state of an
SailSource at a point in time that will remain consistent until SailDataset.close() is called.Implementation of the TripleSource interface using
SailDatasetAn exception thrown by some methods in Sail to indicate that a requested operation could not be executed.
A SailFactory takes care of creating and initializing a specific type of
Sail based on RDF configuration
data.Implementation of a federation evaluation strategy which provides some special optimizations for Native (local) RDF4J
repositories.
Configuration of a Sail implementation.
Tests thread interrupts on a Sail implementation.
Simple tests to sanity check that Sail correctly supports claimed isolation levels.
Indicates that a SAIL cannot be initialised because the configured persisted location is locked.
Model implementation for a
SailConnection.Indicates that the current write operation did not succeed because the SAIL cannot be written to, it can only be read
from.
A registry that keeps track of the available
SailFactorys.An implementation of the
Repository interface that operates on a (stack of) Sail object(s).An implementation of the
RepositoryConnection interface that wraps a SailConnection.A
RepositoryFactory that creates SailRepositorys based on RDF configuration data.Deprecated, for removal: This API element is subject to removal in a future version.
use
CONFIG instead.A mutable source of RDF graphs.
A persistent yet mutable source or container of RDF graphs.
A
SailConnection implementation that is based on an SailStore .A high level interface used by
SailSourceConnection to access SailSource.A triple source to be used on any repository.
Implementation of
SailUpdate.execute() using
SailConnection.evaluate(TupleExpr, Dataset, BindingSet, boolean) and other SailConnection methods.Defines utility methods for working with Sails.
An implementation of the StackableSail interface that wraps another Sail object and forwards any relevant calls to
the wrapped Sail.
Checks RDF term equality.
The SAMPLE operator as defined in http://www.w3.org/TR/sparql11-query/#aggregates
Servlet that provides a page to access saved queries.
Save command history to a file.
Interface for any scheduler.
The SchemaCachingRDFSInferencer is an RDFS reasoner that caches all schema (TBox) statements and calculates an
inference map to quickly determine inferred statements.
A
SailFactory that creates SchemaCachingRDFSInferencers based on RDF configuration data.Namespace Sparql-service-description.
A SearchIndex is a one-stop-shop abstraction of a Lucene index.
This is utility class with tool useful for manipulation on the
SearchIndex.Deprecated.
The SPARQL built-in
Function SECONDS, as defined in
SPARQL Query Language for RDFA SPARQL Select query
Tests on behavior of SERIALIZABLE transactions.
HTTP-related exception indicating that an error occurred in a server.
Base class for single-use request interceptors.
The SERVICE keyword as defined in SERVICE
definition.
Inserts original bindings into the result, uses ?__rowIdx to resolve original bindings.
Iterator for efficient SERVICE evaluation (vectored).
Optimizer for SERVICE nodes.
A registry that stores services by some key.
Defines constants for the Sesame schema namespace.
Defines constants for the Sesame QName schema namespace.
Common interface for objects, such as Repository and RepositoryConnection, that are dependent on
HttpClientSessionManager.Operation that sets the namespace for a specific prefix.
Set parameters command
A
RioSetting with a Set value.Setting interface
The GeoSPARQL
Function geof:sfContains, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfCrosses, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfDisjoint, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfEquals, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfIntersects, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfOverlaps, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfTouches, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The GeoSPARQL
Function geof:sfWithin, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The SPARQL built-in
Function SHA1, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function SHA256, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function SHA384, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function SHA512, as defined in
SPARQL Query Language for RDFConstants for the Shapes Constraint Language.
A
Sail implementation that adds support for the Shapes Constraint Language (SHACL).A
SailImplConfig for ShaclSail configuration.Factory class for creation of
ShaclSails as part of a Sail stack.Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0.
A Manager for HTTP sessions that uses a shared
HttpClient to manage HTTP connections.A
Function that tries to cast its argument to an
xsd:short .Show command
Show prefixes when displaying results.
An
IterationWrapper that silently ignores any errors that occur during processing.An implementation of the
Binding interface.A simple binding set tuned for the use case that the ShaclSail has.
An simple default implementation of the
BNode interface.A bulk updater that updates documents one-by-one.
A simple implementation of the
Dataset interface.The default implementation of the
IRI interface.A simple default implementation of the
Literal interface.Simple log record, containing only the basics
A default implementation of the
Namespace interface.A simple implementation of
ParseLocationListener.An implementation of SimpleSAXListener providing dummy implementations for all its methods.
A listener for events reported by SimpleSAXParser.
An XML parser that generates "simple" SAX-like events from a limited subset of XML documents.
A simple default implementation of the
Triple interface.Default implementation of the
ValueFactory interface.Represents an iteration that contains only a single binding set.
A plan node that can only be closed once
A query which has a single relevant source.
A simple binding set tuned for the use case that the ShaclSail has.
An Iteration that contains exactly one element.
An iterator that contains exactly one element.
A tuple expression that contains exactly one solution with zero bindings.
A Sink writes a data stream in a particular
FileFormat.Handles requests for the size of (set of contexts in) a repository.
Vocabulary constants for the Simple Knowledge Organization System
(SKOS).
Vocabulary constants for the SKOS eXtension for Labels
(SKOS-XL).
The SLICE operator, as defined in SPARQL Query
Language for RDF.
A
SailStore wrapper that branches the backing SailSources to provide concurrent
IsolationLevels.SNAPSHOT_READ isolation and higher.A
SailFactory that creates LuceneSails based on RDF configuration data.Deprecated.
Utility for Solr handling
A wrapper for an Iteration that filters the statements against a pattern similar to getStatements(Resource subject,
IRI predicate, Value object, Resource...
Perform source selection during optimization
Task for sending an ASK request to the endpoints (for source selection)
Describes a cache that can be used for
SourceSelection to reduce the number of remote requests.A factory for
SourceSelectionCache.An implementation of
SourceSelectionCache which uses an in memory Guava Cache as data structure to
maintain information.SPARQL query command
A test suite that runs the W3C Approved SPARQL 1.0 query tests.
A test suite that runs the W3C Approved SPARQL 1.1 query tests.
A test suite that runs the W3C Approved SPARQL 1.1 Syntax tests.
A test suite that runs the W3C Approved SPARQL 1.1 update compliance tests.
A test suite that runs the SPARQL 1.2 community group's query tests.
The built-in SPARQL aggregates.
Parser for SPARQL-1.1 JSON Results Format documents
A
TupleQueryResultParserFactory for parsers of SPARQL-1.1 JSON Boolean Query Results.A BooleanQueryResultWriter that writes query results in the
SPARQL Query Results JSON Format.
A
BooleanQueryResultWriterFactory for writers of SPARQL/JSON query boolean results.Parses boolean query response from remote stores.
Parser for reading boolean query results formatted as SPARQL Results Documents.
A
BooleanQueryResultParserFactory for parsers of SPARQL/XML boolean query results.A
BooleanQueryResultWriter that writes boolean query results in the
SPARQL Query Results XML Format.A
BooleanQueryResultWriterFactory for writers of SPARQL/XML boolean query results.A class to with static methods to create SPARQL query elements.
Utility functions for the SparqlBuilder
Base functionality for SPARQL compliance test suites using a W3C-style Manifest.
Provides a
RepositoryConnection interface to any SPARQL endpoint.Iteration which forms the cross product of a list of materialized input bindings with each result obtained from the
inner iteration.
Additional
EndpointConfiguration for SPARQL endpoints.Federated Service wrapping the
SPARQLRepository to communicate with a SPARQL endpoint.Implementation of a federation evaluation strategy which provides some special optimizations for SPARQL (remote)
endpoints.
The built-in SPARQL Functions.
Parses RDF results in the background.
An Iteration that returns the results of an Iteration (the left argument) MINUS any results that are compatible with
results of another Iteration (the right argument) or that have no shared variables.
Deprecated.
Interface to denote an Expression operator
A
QueryParserFactory for SPARQL parsers.The SPARQLProtocolSession provides low level HTTP methods for communication with SPARQL endpoints.
Provider for an Endpoint that uses a RDF4j
SPARQLRepository as underlying repository.Utility functions for working with SPARQL query strings.
An implementation of the
BindingSet interface that is used to evaluate query object models.Base functionality for SPARQL query compliance test suites .
An alternative implementation of the SPARQL query renderer (more complete than the default
SPARQLQueryRenderer)
Implementation of the
QueryRenderer interface which renders queries into the SPARQL syntax.A proxy class to access any SPARQL 1.1 endpoint.
Configuration for a SPARQL endpoint.
Creates
SPARQLRepository from a configuration.Class holding information for RDF4J
SPARQLRepository initialization.Implements a
MappingStrategy to allow opencsv to work in parallel.SPARQL Results CSV format parser.
A
TupleQueryResultParserFactory for SPARQL CSV result parsers.TupleQueryResultWriter for the SPARQL CSV (Comma-Separated Values) format.
A
TupleQueryResultWriterFactory for writers of SPARQL/CSV tuple query results.Parser for SPARQL-1.1 JSON Results Format documents.
A
TupleQueryResultParserFactory for parsers of SPARQL-1.1 JSON Tuple Query Results.A TupleQueryResultWriter that writes query results in the SPARQL
Query Results JSON Format.
A
TupleQueryResultWriterFactory for writers of SPARQL/JSON query results.Implements a
MappingStrategy to allow opencsv to work in parallel.SPARQL Results TSV format parser.
A
TupleQueryResultParserFactory for SPARQL TSV result parsers.This reader respects the TSV semantics of RDF4J and does absolutely no processing except for splitting the line on
horizontal tabulator characters.
TupleQueryResultWriter for the SPARQL TSV (Tab-Separated Values) format.
A
TupleQueryResultWriterFactory for writers of SPARQL/TSV tuple query results.Parser for reading tuple query results formatted as SPARQL Results Documents.
A
TupleQueryResultParserFactory for parsers of SPARQL/XML tuple query results.A
TupleQueryResultWriter that writes tuple query results in the
SPARQL Query Results XML Format.A
TupleQueryResultWriterFactory for writers of SPARQL/XML tuple query results.This serves as a base class for mapping strategies for character separated inputs.
The
SPARQLServiceResolver is used to manage a set of FederatedService instances, which are used to
evaluate SERVICE expressions for particular service Urls.Parser for SPARQL-star JSON results.
TupleQueryResultParserFactory for creating instances of SPARQLStarResultsJSONParser.Writer for SPARQL-star JSON results.
TupleQueryResultWriterFactory for creating instances of SPARQLStarResultsJSONWriter.Parser for SPARQL-star TSV results.
TupleQueryResultParserFactory for creating instances of SPARQLStarResultsTSVParser.Writer for SPARQL-star TSV results.
TupleQueryResultWriterFactory for creating instances of SPARQLStarResultsTSVWriter.Parser for reading tuple query results formatted as SPARQL Results Documents, extended with support for RDF-star
triples
A
TupleQueryResultParserFactory for parsers of extended SPARQL/XML tuple query results:
TupleQueryResultFormat.SPARQL_STARA
TupleQueryResultWriter that writes tuple query results in the extended form
SPARQL Query Results XML Format.A
TupleQueryResultWriterFactory for writers of extended SPARQL/XML tuple query results:
TupleQueryResultFormat.SPARQL_STARA test suite that runs SPARQL syntax tests.
A triple source to be used for (remote) SPARQL endpoints.
Extends the BaseTupleExprRenderer to provide support for rendering tuple expressions as SPARQL queries.
Parses tuple results in the background.
Update operation of the
SPARQLRepositoryAn extension of
TriGStarParser that processes data in the format specified in the SPARQL 1.1 grammar for Quad
data (assuming no variables, as is the case for INSERT DATA and DELETE DATA operations).Deprecated.
Use
SPARQLUpdateDataBlockParser instead.Encapsulation of a SPARQL 1.1 update operation executed as part of a transaction.
Tests for SPARQL 1.1 Update functionality.
http://spinrdf.org/spif#.
http://spinrdf.org/spinx#.
SPIN Standard Module library.
The GeoSPARQL
Function geof:getSRID, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.An interface for Sails that can be stacked on top of other Sails.
PatternLayout that also prints stack traces.
A read/write-lock manager backed by a StampedLock.
AggregateFunctionFactory implementation that provides AggregateFunction used for processing sample
standard deviation.AggregateCollector that can compute both sample and
population standard deviation based on input of numeric Literals.A
QueryElementCollection that follows a more standard way of converting to a query stringA standard pipeline with the default
QueryOptimizers that will be used by StrictEvaluationStrategy
and its subclasses, unless specifically overridden.An RDF statement, with optional associated context.
A RDFHandler that can be used to collect reported statements in collections.
Converts Statement iteration (i.e.
Function constructing RDF-star Triple from its 3 arguments reused the IRI of rdf:Statement as name
Optimizer with the following tasks:
1.
A context operation with (optional) subject, predicate, object.
An enum for the different orders in which statements can be ordered.
A tuple expression that matches a statement pattern against an RDF graph.
Indicates the scope of the statement pattern.
An efficient QueryModelVisitor that collects StatementPattern's from a query model.
Evaluate the StatementPattern - taking care of graph/datasets - avoiding redoing work every call of evaluate if
possible.
Utility methods for working with
Statement objects, including conversion to/from RDF-star
triple objects.Handles requests for manipulating the statements in a repository.
A structure representing a relevant source for some expression.
Represents statements that can produce results at a some particular endpoints, the statement sources.
Interface for any expression that can be evaluated
AggregateFunction used for processing of extended statistical aggregate operations through SPARQL.AggregateCollector implementation that processes SPARQL statistical functions based on input Literal
values.A wrapping iteration that attempts to close all running scheduled
Futures for the given query evaluation.The STR function, as defined in SPARQL Query Language for
RDF; returns the label of literals or the string representation of URIs.
The SPARQL built-in
Function STRAFTER, as defined in
SPARQL Query Language for RDF.The SPARQL built-in
Function STRBEFORE, as defined in
SPARQL Query Language for RDF.The SPARQL built-in
Function STRDT, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function STRENDS, as defined in
SPARQL Query Language for RDFDeprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0.
Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0 - use
DefaultEvaluationStrategyFactory instead.Deprecated.
use
StringCast insteadA
Function that tries to cast its argument to an
xsd:string.Processes escape sequences in strings, replacing the escape sequence with their actual value.
A
RioSetting with a String value.The SPARQL built-in
Function STRLANG, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function STRLEN, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function STRSTARTS, as defined in
SPARQL Query Language for RDFThe SPARQL built-in
Function UUID, as defined in
SPARQL Query Language for RDFA SPARQL subquery
Tests on SPARQL nested SELECT query handling.
The SPARQL built-in
Function SUBSTR, as defined in
SPARQL Query Language for RDF.The SUM operator as defined in http://www.w3.org/TR/sparql11-query/#aggregates
The GeoSPARQL
Function geof:symDifference, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.Execute the nested loop join in a synchronous fashion, using grouped requests, i.e.
Execute the nested loop join in a synchronous fashion, i.e.
Synchronous execution of union tasks, i.e.
Pops the last target off of the target chain and into the value.
Used to run the query that represents the target and sets the bindings based on values that match the statement
patterns from the added/removed sail connection
A
TaskWrapper is a facility to wrap Runnable background tasks before they are passed to the
Executor.Classes implementing this interface can accept a custom
TaskWrapper.Class to represent a SPIN template.
An iteration that delays the creation of the underlying iteration until it is being accessed.
An interface used to signal thread safety features of a sail or its related classes.
Constants for the Time Ontology in OWL.
The SPARQL built-in
Function TIMEZONE, as defined in
SPARQL Query Language for RDFConnection wrapper that throws an exception if a write operation is attempted in a read-only transaction.
Handles requests for transaction creation on a repository.
View used to export statements as part of a transaction.
An update operation that is part of a transaction.
A configuration setting that can be passed at the beginning of a repository transaction to influence behavior within
the scope of that transaction only.
A TransactionSettingFactory returns a
TransactionSetting implementation for a given value.A
ServiceRegistry for creating/retrieving TransactionSettings in a transparent way.Handles requests for transaction creation on a repository.
Serializes of an RDF transaction.
Tagging interface for
Functions that have some sort of lifespan.Tagging interface for
TupleFunctions that have some sort of lifespan.A Red-Black tree based
Model implementation.Creates
TreeModel.RDF parser for RDF-1.1 TriG files.
An
RDFParserFactory for TriG parsers.JUnit test for the TriG parser that uses the tests that are available
online.
RDF parser for TriG-star (an extension of TriG that adds RDF-star support).
An
RDFParserFactory for TriG-star parsers.An extension of
TriGWriter that writes RDF-star documents in the TriG-star format by including the RDF-star
triples.An
RDFWriterFactory for TriG-star writers.An extension of
TurtleWriter that writes RDF documents in
TriG format by adding graph scopes to the Turtle
document.An
RDFWriterFactory for TriG parsers.An RDF-star embedded triple.
Function returning the object component of RDF-star Triple reused the IRI of rdf:object as name
Denotes a SPARQL Triple Pattern
Function returning the predicate component of RDF-star Triple reused the IRI of rdf:predicate as name
Triple lookup reference.
Interface for implementations of triple sources.
A triple source that can be queried for (the existence of) certain triples in certain contexts.
Interface defining the operation to be perform on the connection
Holder for a result iteration to be used with
TripleSourceBase.withConnection(ConnectionOperation).Deprecated, for removal: This API element is subject to removal in a future version.
Represents a collection of triple patterns
Function returning the subject component of RDF-star Triple reused the IRI of rdf:subject as name
Interface defining a number of constants for the TriX document format.
A parser that can parse RDF files that are in the TriX format .
An
RDFParserFactory for TriX parsers.ParserSettings for the TriX parser features.
ParserSettings for the TriX parser features.
An implementation of the RDFWriter interface that writes RDF documents in
TriX format.
An
RDFWriterFactory for TriX writers.A TrueStatementPattern represents a stmt with no free variables which in addition is available at one of the provided
sources.
Evaluator tuple and graph queries
An expression that evaluates to RDF tuples.
A SPARQL AST visitor implementation that creates a query algebra representation of the query.
Utility methods for
TupleExpr objects.A function that can return a tuple of
Values.A call to a TupleFunction.
Deprecated, for removal: This API element is subject to removal in a future version.
since 4.3.0.
A representation of a variable-binding query result as a sequence of
BindingSet objects.A TupleQueryResultHandler that can be used to create a TupleQueryResult object.
Represents the concept of an tuple query result serialization format.
An interface defining methods related to handling sequences of Solutions.
An exception that can be thrown by an TupleQueryResultHandler when it encounters an unrecoverable error.
A general interface for tuple query result parsers.
A TupleQueryResultParserFactory returns
TupleQueryResultParsers for a specific tuple query result format.A registry that keeps track of the available
TupleQueryResultParserFactorys.View used to render tuple query results.
The interface of objects that writer query results in a specific query result format.
Returns
TupleQueryResultWriters for a specific tuple query result format.A registry that keeps track of the available
TupleQueryResultWriterFactorys.A small wrapper around
QueryResultWriter to make it easier to generate results in servlets.RDF parser for RDF-1.1 Turtle files.
An
RDFParserFactory for Turtle parsers.Parser Settings that are specific to
RDFFormat.TURTLE parsers.Parser Settings that are specific to
RDFFormat.TURTLE parsers.JUnit test for the Turtle parser that uses the tests that are available
online.
RDF parser for Turtle-star (an extension of Turtle that adds RDF-star support).
An
RDFParserFactory for Turtle-star parsers.An extension of
TurtleWriter that writes RDF-star documents in the Turtle-star format by including the
RDF-star triples.An
RDFWriterFactory for Turtle-star writers.Utility methods for Turtle encoding/decoding.
An implementation of the RDFWriter interface that writes RDF documents in Turtle format.
An
RDFWriterFactory for Turtle writers.A class encapsulating writer settings that Turtle writers may support.
A class encapsulating writer settings that Turtle writers may support.
Option to describe how the
LuceneSail should handle the add of a new type
statement in a connection if the LuceneSail.INDEXEDTYPES property is defined.The SPARQL built-in
Function TZ, as defined in SPARQL
Query Language for RDFAn abstract superclass for unary tuple operators which, by definition, has one argument.
An abstract superclass for unary value operators which, by definition, has one argument.
A wrapper for an input stream to avoid allowing libraries to close input streams unexpectedly using the
UncloseableInputStream.close() method.A wrapper for an output stream to avoid allowing libraries to close output streams unexpectedly using the
UncloseableOutputStream.close() method.The GeoSPARQL
Function geof:union, as defined in
OGC GeoSPARQL - A Geographic Query Language for RDF
Data.The UNION set operator, which return the union of the result sets of two tuple expressions.
Base class for any parallel union executor.
An Iteration that returns the bag union of the results of a number of Iterations.
Optimizer to flatten the UNION operations.
Inspect Union clauses to check if scope change can be avoided (allowing injection of pre-bound vars into union
arguments).
Tests on SPRQL UNION clauses.
Indicates that a SAIL's transaction state (active or inactive) cannot be determined.
A specific subtype of
RepositoryException that indicates the connection's transaction state can not be
determined.A
IntegerCastFunction that tries to cast its argument to an xsd:unsignedByte .A
IntegerCastFunction that tries to cast its argument to an xsd:unsignedInt .A
IntegerCastFunction that tries to cast its argument to an xsd:unsignedShort .A
IntegerCastFunction that tries to cast its argument to an xsd:unsignedShort .A RuntimeException indicating that a specific query language is not supported.
A Runtime exception indicating that a specific query result format is not supported.
A RuntimeException indicating that a specific RDF format is not supported.
An update operation on a repository that can be formulated in one of the supported query languages (for example
SPARQL).
Provided with add and remove operation to give them context within a
UpdateExpr operation.An exception indicating that the execution of an update failed.
An expression that executes an update.
Extension of TupleExprBuilder that builds Update Expressions.
The SPARQL built-in
Function UCASE, as defined in
SPARQL Query Language for RDFUtility functions for working with
URIs.Used by the user to provide an Elasticsearch Client to the ElasticsearchStore instead of providing host, port,
cluster information.
Helper class
The SPARQL built-in
Function UUID, as defined in
SPARQL Query Language for RDFInterface for making different approaches of obtaining new UUIDs pluggable into the
Rdf4JTemplate.Validating wrapper to
ValueFactory.Factory class for producing instances of
ShaclSail.TransactionSettings.ValidationApproach from string values.MAY BE MOVED IN THE FUTURE!
Deprecated.
The ValidationReport is deprecated because it is planned moved to a new package to allow it to be used
with remote validation reports.
Deprecated.
The ValidationResult is deprecated because it is planned moved to a new package to allow it to be used
with remote validation results.
The supertype of all RDF model objects (URIs, blank nodes and literals).
A comparator that compares values according the SPARQL value ordering as specified in
SPARQL Query Language for RDF.
A ValueExpr with a constant value.
An expressions that evaluates to Value objects.
An exception indicating that a
ValueExpr could not be evaluated due to illegal or incompatible values.A factory for creating
IRIs, blank nodes, literals and statements based on the RDF-1.1 Concepts and Abstract Syntax, a W3C Recommendation.Tests on SPARQL VALUES clauses.
File-based indexed storage and retrieval of RDF values.
A
ValueStore revision for LmdbValue objects.A
ValueStore revision for NativeValue objects.Constants for a vocabulary for annotating vocabulary descriptions (VANN).
A variable that can contain a Value.
A SPARQL query variable
Interface for algebra nodes that can return the free variables of the expression.
QueryModelNodes that can constitute a variable scope change (such as group graph patterns, subselects, etc).AggregateFunctionFactory implementation that provides AggregateFunction used for processing sample
variance.AggregateCollector that can compute both sample and
population variance based on input of numeric Literals.Encodes and decodes unsigned values using variable-length encoding.
A matcher for partial equality tests of varint lists.
A QueryModelVisitor that collects the names of (non-constant) variables that are used in a query model.
Variable byte encoding for numbers.
Constants for the vCard Ontology.
Listen to parser errors and warnings
Verify command
Version utility: read the version from the Jar's manifest file.
Very simple RDFS backwardschaining connection that supports type inference on hasStatement and getStatement.
View represents a "leaf" in the navigation model, for example a page in a website.
An implementation of a datatype handler that can process Virtuoso Geometry datatypes.
Utility functions for working with vocabularies.
Vocabulary used in FedX to describe endpoints and services
FedX specific vocabulary
Vocabulary from the SPARQL 1.1.
Constants for the W3C Vocabulary of Interlinked Datasets.
The AST (Abstract Syntax Tree) node that is used when a sh:PropertyShape has no constraints.
An object registry that uses weak references to keep track of the stored objects.
Constants for the Basic Geo (WGS84 lat/long) Vocabulary.
Deprecated.
This feature is for internal use only: its existence, signature or behavior may change without warning
from one release to the next.
Platform implementation for MS-Windows
All requests are serviced by this Servlet, though it usually delegates to other Servlets.
Request wrapper used by
TransformationServlet.Working directory setting
Base class for worker unions providing convenience functions to add tasks.
A read/write lock manager with writer preference.
Benchmark for
RDFWriters using datasets generated by DataSetGenerator.A container object for easy setting and passing of
RDFWriter configuration options.Interface for the
WriteStrategy that is used for writing data to the federation.Factory to create
WriteStrategy instantiations.A utility class for evaluation of extended "mathematical" expressions on RDF literals.
Provides methods for handling the standard XML Schema datatypes.
This class provides utility functions for comparisons operating on
xml:dateTime datatypes as specified
in W3C XML Schema Definition Language (XSD) 1.1 Part 2:
Datatypes.ParserSettings for the XML parser features.
Base class for Rio parsers that are based on a SAX
XMLReader.Factory class for creating an XMLReader.
Deprecated.
since 3.3.0.
An implementation of a datatype handler that can process
XSD datatypes.Utility methods for handling and processing XML data.
A utility class offering convenience methods for writing XML.
A class encapsulating writer settings that XML writers may support.
Constants for the standard XML Schema 1.1 datatypes.
The SPARQL built-in
Function YEAR, as defined in
SPARQL Query Language for RDFA tuple expression that matches a path of length zero against an RDF graph.
Zip-related utilities.
AbstractASTVisitorinstead.