Package org.eclipse.rdf4j.query.algebra
Class NAryValueOperator
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.NAryValueOperator
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- All Implemented Interfaces:
Serializable,Cloneable,QueryModelNode,ValueExpr,VariableScopeChange
- Direct Known Subclasses:
Coalesce,ListMemberOperator
public abstract class NAryValueOperator extends AbstractQueryModelNode implements ValueExpr
An abstract superclass for N-ary value operators.- Author:
- Jeen
- See Also:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor Description protectedNAryValueOperator()protectedNAryValueOperator(List<ValueExpr> args)Creates a new N-Ary value operator.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddArgument(ValueExpr arg)NAryValueOperatorclone()Returns a (deep) clone of this query model node.booleanequals(Object other)Returns true if this query model node and its children are recursively equal to o and its children.List<ValueExpr>getArguments()inthashCode()voidreplaceChildNode(QueryModelNode current, QueryModelNode replacement)Replaces one of the child nodes with a new node.voidsetArguments(List<ValueExpr> args)<X extends Exception>
voidvisitChildren(QueryModelVisitor<X> visitor)Visits the children of this node.-
Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, isCardinalitySet, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, shouldCacheCardinality, toString
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Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visit
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Method Detail
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addArgument
public void addArgument(ValueExpr arg)
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visitChildren
public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from interface:QueryModelNodeVisits the children of this node. The node callsQueryModelNode.visit(QueryModelVisitor)on all of its child nodes.- Specified by:
visitChildrenin interfaceQueryModelNode- Throws:
X extends Exception
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replaceChildNode
public void replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Description copied from interface:QueryModelNodeReplaces one of the child nodes with a new node.- Specified by:
replaceChildNodein interfaceQueryModelNode- Parameters:
current- The current child node.replacement- The new child node.
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equals
public boolean equals(Object other)
Description copied from interface:QueryModelNodeReturns true if this query model node and its children are recursively equal to o and its children.- Specified by:
equalsin interfaceQueryModelNode- Overrides:
equalsin classObject
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clone
public NAryValueOperator clone()
Description copied from interface:QueryModelNodeReturns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.- Specified by:
clonein interfaceQueryModelNode- Specified by:
clonein interfaceValueExpr- Overrides:
clonein classAbstractQueryModelNode- Returns:
- A deep clone of this query model node.
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