Package org.eclipse.rdf4j.query.algebra
Class BinaryValueOperator
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.BinaryValueOperator
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- All Implemented Interfaces:
Serializable,Cloneable,GraphPatternGroupable,QueryModelNode,ValueExpr,VariableScopeChange
public abstract class BinaryValueOperator extends AbstractQueryModelNode implements ValueExpr
An abstract superclass for binary value operators which, by definition, has two arguments.- See Also:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor Description protectedBinaryValueOperator()protectedBinaryValueOperator(ValueExpr leftArg, ValueExpr rightArg)Creates a new binary value operator.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description BinaryValueOperatorclone()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.ValueExprgetLeftArg()Gets the left argument of this binary value operator.ValueExprgetRightArg()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, 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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getLeftArg
public ValueExpr getLeftArg()
Gets the left argument of this binary value operator.- Returns:
- The operator's left argument.
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setLeftArg
public void setLeftArg(ValueExpr leftArg)
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
public ValueExpr getRightArg()
Gets the right argument of this binary value operator.- Returns:
- The operator's right argument.
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setRightArg
public void setRightArg(ValueExpr rightArg)
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
public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X extends Exception
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
public void replaceChildNode(QueryModelNode current, QueryModelNode replacement)
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
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 BinaryValueOperator 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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