Package org.eclipse.rdf4j.query.algebra
Class BinaryValueOperator
java.lang.Object
org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
org.eclipse.rdf4j.query.algebra.BinaryValueOperator
- All Implemented Interfaces:
Serializable,Cloneable,GraphPatternGroupable,QueryModelNode,ValueExpr,VariableScopeChange
An abstract superclass for binary value operators which, by definition, has two arguments.
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Field Summary
Fields -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedprotectedBinaryValueOperator(ValueExpr leftArg, ValueExpr rightArg) Creates a new binary value operator. -
Method Summary
Modifier and TypeMethodDescriptionclone()Returns a (deep) clone of this query model node.booleanReturns true if this query model node and its children are recursively equal to o and its children.Gets the left argument of this binary value operator.Gets the right argument of this binary value operator.inthashCode()voidreplaceChildNode(QueryModelNode current, QueryModelNode replacement) Default implementation ofQueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode)that throws anIllegalArgumentExceptionindicating that current is not a child node of this node.voidsetLeftArg(ValueExpr leftArg) Sets the left argument of this binary value operator.voidsetRightArg(ValueExpr rightArg) Sets the right argument of this binary value operator.<X extends Exception>
voidvisitChildren(QueryModelVisitor<X> visitor) Dummy implementation ofQueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)that does nothing.Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, isCardinalitySet, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, shouldCacheCardinality, toStringMethods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, waitMethods 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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Field Details
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leftArg
The operator's left argument. -
rightArg
The operator's right argument.
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Constructor Details
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BinaryValueOperator
protected BinaryValueOperator() -
BinaryValueOperator
Creates a new binary value operator.- Parameters:
leftArg- The operator's left argument, must not be null.rightArg- The operator's right argument, must not be null.
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Method Details
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getLeftArg
Gets the left argument of this binary value operator.- Returns:
- The operator's left argument.
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setLeftArg
Sets the left argument of this binary value operator.- Parameters:
leftArg- The (new) left argument for this operator, must not be null.
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getRightArg
Gets the right argument of this binary value operator.- Returns:
- The operator's right argument.
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setRightArg
Sets the right argument of this binary value operator.- Parameters:
rightArg- The (new) right argument for this operator, must not be null.
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visitChildren
Description copied from class:AbstractQueryModelNodeDummy implementation ofQueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)that does nothing. Subclasses should override this method when they have child nodes.- Specified by:
visitChildrenin interfaceQueryModelNode- Overrides:
visitChildrenin classAbstractQueryModelNode- Throws:
X extends Exception
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replaceChildNode
Description copied from class:AbstractQueryModelNodeDefault implementation ofQueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode)that throws anIllegalArgumentExceptionindicating that current is not a child node of this node.- Specified by:
replaceChildNodein interfaceQueryModelNode- Overrides:
replaceChildNodein classAbstractQueryModelNode- Parameters:
current- The current child node.replacement- The new child node.
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equals
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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hashCode
public int hashCode() -
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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