org.eclipse.rdf4j.query.algebra.evaluation.util

Class TripleSources

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.util.TripleSources

Direct Known Subclasses:

Statements

public class TripleSources
extends Object

Utility methods for working with TripleSources.

Method Summary

Modifier and Type	Method and Description
static boolean	booleanValue(org.eclipse.rdf4j.model.Resource subj, org.eclipse.rdf4j.model.IRI pred, TripleSource store)
static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.Literal,org.eclipse.rdf4j.query.QueryEvaluationException>	getObjectLiterals(org.eclipse.rdf4j.model.Resource subject, org.eclipse.rdf4j.model.IRI predicate, TripleSource store)
static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.Resource,org.eclipse.rdf4j.query.QueryEvaluationException>	getObjectResources(org.eclipse.rdf4j.model.Resource subject, org.eclipse.rdf4j.model.IRI predicate, TripleSource store)
static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.IRI,org.eclipse.rdf4j.query.QueryEvaluationException>	getObjectURIs(org.eclipse.rdf4j.model.Resource subject, org.eclipse.rdf4j.model.IRI predicate, TripleSource store)
static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.IRI,org.eclipse.rdf4j.query.QueryEvaluationException>	getSubjectURIs(org.eclipse.rdf4j.model.IRI predicate, org.eclipse.rdf4j.model.Value object, TripleSource store)
static org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.model.Value,org.eclipse.rdf4j.query.QueryEvaluationException>	list(org.eclipse.rdf4j.model.Resource subj, TripleSource store)
static org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.model.Resource,org.eclipse.rdf4j.query.QueryEvaluationException>	listResources(org.eclipse.rdf4j.model.Resource subj, TripleSource store)
static org.eclipse.rdf4j.model.Statement	single(org.eclipse.rdf4j.model.Resource subj, org.eclipse.rdf4j.model.IRI pred, org.eclipse.rdf4j.model.Value obj, TripleSource store) Returns the single statement with the given subject, predicate and object or null if none exists.
static org.eclipse.rdf4j.model.Value	singleValue(org.eclipse.rdf4j.model.Resource subj, org.eclipse.rdf4j.model.IRI pred, TripleSource store)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

listResources

public static org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.model.Resource,org.eclipse.rdf4j.query.QueryEvaluationException> listResources(org.eclipse.rdf4j.model.Resource subj,
                                                                                                                                                                      TripleSource store)
                                                                                                                                                               throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

list

public static org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.model.Value,org.eclipse.rdf4j.query.QueryEvaluationException> list(org.eclipse.rdf4j.model.Resource subj,
                                                                                                                                                          TripleSource store)
                                                                                                                                                   throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

booleanValue

public static boolean booleanValue(org.eclipse.rdf4j.model.Resource subj,
                                   org.eclipse.rdf4j.model.IRI pred,
                                   TripleSource store)
                            throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

singleValue

public static org.eclipse.rdf4j.model.Value singleValue(org.eclipse.rdf4j.model.Resource subj,
                                                        org.eclipse.rdf4j.model.IRI pred,
                                                        TripleSource store)
                                                 throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

single

public static org.eclipse.rdf4j.model.Statement single(org.eclipse.rdf4j.model.Resource subj,
                                                       org.eclipse.rdf4j.model.IRI pred,
                                                       org.eclipse.rdf4j.model.Value obj,
                                                       TripleSource store)
                                                throws org.eclipse.rdf4j.query.QueryEvaluationException

Returns the single statement with the given subject, predicate and object or null if none exists. Context information is disregarded.

Parameters:

subj - null for any.

pred - null for any.

obj - null for any.

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException - If there is more than one such statement.

getSubjectURIs

public static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.IRI,org.eclipse.rdf4j.query.QueryEvaluationException> getSubjectURIs(org.eclipse.rdf4j.model.IRI predicate,
                                                                                                                                                                           org.eclipse.rdf4j.model.Value object,
                                                                                                                                                                           TripleSource store)
                                                                                                                                                                    throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

getObjectResources

public static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.Resource,org.eclipse.rdf4j.query.QueryEvaluationException> getObjectResources(org.eclipse.rdf4j.model.Resource subject,
                                                                                                                                                                                    org.eclipse.rdf4j.model.IRI predicate,
                                                                                                                                                                                    TripleSource store)
                                                                                                                                                                             throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

getObjectURIs

public static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.IRI,org.eclipse.rdf4j.query.QueryEvaluationException> getObjectURIs(org.eclipse.rdf4j.model.Resource subject,
                                                                                                                                                                          org.eclipse.rdf4j.model.IRI predicate,
                                                                                                                                                                          TripleSource store)
                                                                                                                                                                   throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

getObjectLiterals

public static org.eclipse.rdf4j.common.iteration.CloseableIteration<? extends org.eclipse.rdf4j.model.Literal,org.eclipse.rdf4j.query.QueryEvaluationException> getObjectLiterals(org.eclipse.rdf4j.model.Resource subject,
                                                                                                                                                                                  org.eclipse.rdf4j.model.IRI predicate,
                                                                                                                                                                                  TripleSource store)
                                                                                                                                                                           throws org.eclipse.rdf4j.query.QueryEvaluationException

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException