Class FedXZeroLengthPath

java.lang.Object

org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

org.eclipse.rdf4j.query.algebra.ZeroLengthPath

org.eclipse.rdf4j.federated.algebra.FedXZeroLengthPath

All Implemented Interfaces:

Serializable, Cloneable, QueryRef, QueryModelNode, TupleExpr, VariableScopeChange

public class FedXZeroLengthPath
extends ZeroLengthPath
implements QueryRef

A specialization of ZeroLengthPath that keeps track of QueryInfo and statement sources.

Author:

Andreas Schwarte

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
FedXZeroLengthPath(StatementPattern.Scope scope, Var subjVar, Var objVar, Var conVar, QueryInfo queryInfo, List<StatementSource> statementSources)

Method Summary

Modifier and Type	Method	Description
QueryInfo	getQueryInfo()	Retrieve the attached query information of the tuple expression
List<StatementSource>	getStatementSources()

Methods inherited from class ZeroLengthPath

clone, equals, getAssuredBindingNames, getBindingNames, getContextVar, getObjectVar, getOrder, getScope, getSignature, getSubjectVar, getSupportedOrders, getVarList, getVars, hashCode, replaceChildNode, setContextVar, setObjectVar, setOrder, setScope, setSubjectVar, visit, visitChildren

Methods inherited from class AbstractQueryModelNode

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

Methods inherited from class Object

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

Methods inherited from interface QueryModelNode

getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString

Constructor Details

FedXZeroLengthPath

public FedXZeroLengthPath(StatementPattern.Scope scope,
 Var subjVar,
 Var objVar,
 Var conVar,
 QueryInfo queryInfo,
 List<StatementSource> statementSources)

Method Details

getStatementSources

public List<StatementSource> getStatementSources()

getQueryInfo

public QueryInfo getQueryInfo()

Description copied from interface: QueryRef

Retrieve the attached query information of the tuple expression

Specified by:

getQueryInfo in interface QueryRef

Returns:

the QueryInfo