Package org.eclipse.rdf4j.query

package org.eclipse.rdf4j.query

Interfaces and classes for handling queries and query results.

Interface Summary

Interface	Description
Binding	A named value binding.
BindingSet	A BindingSet is a set of named value bindings, which is used a.o.
BooleanQuery
BooleanQueryResultHandler	An interface that indicates that this QueryResultHandler is capable of handling boolean results using the QueryResultHandler.handleBoolean(boolean) method.
Dataset	Represents a dataset against which operations can be evaluated.
GraphQuery
GraphQueryResult	A representation of a query result as a sequence of Statement objects.
MutableBindingSet	A BindingSet is a set of named value bindings, which is used a.o.
Operation	An operation (e.g.
Query	A query on a repository that can be formulated in one of the supported query languages (for example SPARQL).
QueryResult<T>	Super type of all query result types (TupleQueryResult, GraphQueryResult, etc.).
QueryResultHandler	The super class of all handlers for processing query results.
TupleQuery
TupleQueryResult	A representation of a variable-binding query result as a sequence of BindingSet objects.
TupleQueryResultHandler	An interface defining methods related to handling sequences of Solutions.
Update	An update operation on a repository that can be formulated in one of the supported query languages (for example SPARQL).

Class Summary

Class	Description
AbstractBindingSet	Abstract base class for BindingSet implementations, providing a.o.
AbstractTupleQueryResultHandler	Base class for TupleQueryResultHandlers with dummy implementations of all methods.
QueryLanguage	A type-safe enumeration for RDF query languages such as QueryLanguage.SPARQL.
QueryResults	Utility methods related to query results.
QueryResultUtil	Deprecated. since 2.0.
TupleQueryResultHandlerBase	Deprecated. since 2.0.

Enum Summary

Enum	Description
Query.QueryType	The different types of queries that RDF4J recognizes: boolean queries, graph queries, and tuple queries.

Exception Summary

Exception	Description
BooleanQueryResultHandlerException	An exception that can be thrown by an BooleanQueryResultHandler when it encounters an unrecoverable error.
IncompatibleOperationException	An exception indicating that a string could not be parsed into an operation of the expected type by the parser.
MalformedQueryException	An exception indicating that a query could not be processed by the query parser, typically due to syntax errors.
QueryEvaluationException	An exception indicating that the evaluation of a query failed.
QueryInterruptedException	An exception indicating that the evaluation of a query has been interrupted, for example because it took too long to complete.
QueryResultHandlerException	The super class of exceptions originating from QueryResultHandler implementations.
TupleQueryResultHandlerException	An exception that can be thrown by an TupleQueryResultHandler when it encounters an unrecoverable error.
UnsupportedQueryLanguageException	A RuntimeException indicating that a specific query language is not supported.
UpdateExecutionException	An exception indicating that the execution of an update failed.