Package org.eclipse.rdf4j.federated.algebra

Class ExclusiveStatement

java.lang.Object

org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

org.eclipse.rdf4j.query.algebra.StatementPattern

org.eclipse.rdf4j.federated.algebra.FedXStatementPattern

org.eclipse.rdf4j.federated.algebra.ExclusiveStatement

All Implemented Interfaces:

Serializable, Cloneable, BoundJoinTupleExpr, ExclusiveTupleExpr, FedXTupleExpr, FilterTuple, QueryRef, StatementTupleExpr, VariableExpr, GraphPatternGroupable, QueryModelNode, TupleExpr, VariableScopeChange

public class ExclusiveStatement
extends FedXStatementPattern
implements ExclusiveTupleExpr

Represents a StatementPattern that can only produce results at a single endpoint, the owner.

Author:

Andreas Schwarte

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.rdf4j.query.algebra.StatementPattern

StatementPattern.Scope

Field Summary

Fields inherited from class org.eclipse.rdf4j.federated.algebra.FedXStatementPattern

boundFilters, filterExpr, freeVars, id, queryInfo, statementSources, upperLimit

Fields inherited from class org.eclipse.rdf4j.query.algebra.StatementPattern

CARDINALITY_NOT_SET

Constructor Summary

Constructors

Constructor	Description
ExclusiveStatement(StatementPattern node, StatementSource owner, QueryInfo queryInfo)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet,QueryEvaluationException>	evaluate(BindingSet bindings)	Evaluate this expression using the provided bindings
StatementSource	getOwner()

Methods inherited from class org.eclipse.rdf4j.federated.algebra.FedXStatementPattern

addBoundFilter, addFilterExpr, getBoundFilters, getFilterExpr, getFreeVarCount, getFreeVars, getId, getQueryInfo, getSourceCount, getStatementSources, getUpperLimit, hasFilter, hasFreeVarsFor, initFreeVars, setUpperLimit, visit, visitChildren

Methods inherited from class org.eclipse.rdf4j.query.algebra.StatementPattern

clone, equals, getAssuredBindingNames, getBindingNames, getContextVar, getObjectVar, getPredicateVar, getScope, getSignature, getSubjectVar, getVarList, getVars, hashCode, replaceChildNode, setContextVar, setObjectVar, setPredicateVar, setScope, setSubjectVar, shouldCacheCardinality

Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isCardinalitySet, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.federated.algebra.FedXTupleExpr

getFreeVarCount

Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode

equals, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceChildNode, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visit, visitChildren

Methods inherited from interface org.eclipse.rdf4j.federated.algebra.QueryRef

getQueryInfo

Methods inherited from interface org.eclipse.rdf4j.query.algebra.TupleExpr

clone, getAssuredBindingNames, getBindingNames

Methods inherited from interface org.eclipse.rdf4j.federated.algebra.VariableExpr

getFreeVars

Constructor Details

ExclusiveStatement

public ExclusiveStatement(StatementPattern node,
 StatementSource owner,
 QueryInfo queryInfo)

Method Details

getOwner

public StatementSource getOwner()

Specified by:

getOwner in interface ExclusiveTupleExpr

Returns:

the owner for this expression

evaluate

public CloseableIteration<BindingSet,QueryEvaluationException> evaluate(BindingSet bindings)
                                                                 throws QueryEvaluationException

Description copied from interface: StatementTupleExpr

Evaluate this expression using the provided bindings

Specified by:

evaluate in interface StatementTupleExpr

Returns:

the result iteration

Throws:

QueryEvaluationException