Package org.eclipse.rdf4j.query
Interfaces and classes for handling queries and query results.
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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 theQueryResultHandler.handleBoolean(boolean)
method.Dataset Represents a dataset against which operations can be evaluated.GraphQuery GraphQueryResult A representation of a query result as a sequence ofStatement
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 ofBindingSet
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 forBindingSet
implementations, providing a.o.AbstractTupleQueryResultHandler Base class forTupleQueryResultHandler
s with dummy implementations of all methods.QueryLanguage A type-safe enumeration for RDF query languages such asQueryLanguage.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 fromQueryResultHandler
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.