Package org.eclipse.rdf4j.query.algebra
Class BinaryTupleOperator
java.lang.Object
org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
- All Implemented Interfaces:
Serializable,Cloneable,GraphPatternGroupable,QueryModelNode,TupleExpr,VariableScopeChange
- Direct Known Subclasses:
Difference,Intersection,Join,LeftJoin,Union
An abstract superclass for binary tuple operators which, by definition, has two arguments.
- See Also:
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Field Summary
Fields -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedprotectedBinaryTupleOperator(TupleExpr leftArg, TupleExpr rightArg) Creates a new binary tuple 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 tuple operator.Gets the right argument of this binary tuple 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.voidsetAlgorithm(String classSimpleName) voidsetAlgorithm(CloseableIteration<?, ?> iteration) voidsetLeftArg(TupleExpr leftArg) Sets the left argument of this binary tuple operator.voidsetRightArg(TupleExpr rightArg) Sets the right argument of this binary tuple 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, visitMethods inherited from interface org.eclipse.rdf4j.query.algebra.TupleExpr
getAssuredBindingNames, getBindingNames
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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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BinaryTupleOperator
protected BinaryTupleOperator() -
BinaryTupleOperator
Creates a new binary tuple 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 tuple operator.- Returns:
- The operator's left argument.
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setLeftArg
Sets the left argument of this binary tuple 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 tuple operator.- Returns:
- The operator's right argument.
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setRightArg
Sets the right argument of this binary tuple 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 interfaceTupleExpr- Overrides:
clonein classAbstractQueryModelNode- Returns:
- A deep clone of this query model node.
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setAlgorithm
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setAlgorithm
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getAlgorithmName
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