org.openrdf.query.algebra.evaluation.util

Class Statements

java.lang.Object

org.openrdf.query.algebra.evaluation.util.Statements

public final class Statements
extends Object

Useful methods for working with TripleSources.

Method Summary

Modifier and Type	Method and Description
static boolean	booleanValue(Resource subj, URI pred, TripleSource store)
static CloseableIteration<? extends Literal,QueryEvaluationException>	getObjectLiterals(Resource subject, URI predicate, TripleSource store)
static CloseableIteration<? extends Resource,QueryEvaluationException>	getObjectResources(Resource subject, URI predicate, TripleSource store)
static CloseableIteration<? extends URI,QueryEvaluationException>	getObjectURIs(Resource subject, URI predicate, TripleSource store)
static CloseableIteration<? extends URI,QueryEvaluationException>	getSubjectURIs(URI predicate, Value object, TripleSource store)
static Iteration<? extends Value,QueryEvaluationException>	list(Resource subj, TripleSource store)
static Iteration<? extends Resource,QueryEvaluationException>	listResources(Resource subj, TripleSource store)
static Statement	single(Resource subj, URI pred, Value obj, TripleSource store)
static Value	singleValue(Resource subj, URI 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 Iteration<? extends Resource,QueryEvaluationException> listResources(Resource subj,
                                                                                   TripleSource store)
                                                                            throws QueryEvaluationException

Throws:

QueryEvaluationException

list

public static Iteration<? extends Value,QueryEvaluationException> list(Resource subj,
                                                                       TripleSource store)
                                                                throws QueryEvaluationException

Throws:

QueryEvaluationException

booleanValue

public static boolean booleanValue(Resource subj,
                                   URI pred,
                                   TripleSource store)
                            throws QueryEvaluationException

Throws:

QueryEvaluationException

singleValue

public static Value singleValue(Resource subj,
                                URI pred,
                                TripleSource store)
                         throws QueryEvaluationException

Throws:

QueryEvaluationException

single

public static Statement single(Resource subj,
                               URI pred,
                               Value obj,
                               TripleSource store)
                        throws QueryEvaluationException

Throws:

QueryEvaluationException

getSubjectURIs

public static CloseableIteration<? extends URI,QueryEvaluationException> getSubjectURIs(URI predicate,
                                                                                        Value object,
                                                                                        TripleSource store)
                                                                                 throws QueryEvaluationException

Throws:

QueryEvaluationException

getObjectResources

public static CloseableIteration<? extends Resource,QueryEvaluationException> getObjectResources(Resource subject,
                                                                                                 URI predicate,
                                                                                                 TripleSource store)
                                                                                          throws QueryEvaluationException

Throws:

QueryEvaluationException

getObjectURIs

public static CloseableIteration<? extends URI,QueryEvaluationException> getObjectURIs(Resource subject,
                                                                                       URI predicate,
                                                                                       TripleSource store)
                                                                                throws QueryEvaluationException

Throws:

QueryEvaluationException

getObjectLiterals

public static CloseableIteration<? extends Literal,QueryEvaluationException> getObjectLiterals(Resource subject,
                                                                                               URI predicate,
                                                                                               TripleSource store)
                                                                                        throws QueryEvaluationException

Throws:

QueryEvaluationException