Package org.eclipse.rdf4j.query.algebra
Class Difference
java.lang.Object
org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
org.eclipse.rdf4j.query.algebra.Difference
- All Implemented Interfaces:
Serializable,Cloneable,GraphPatternGroupable,QueryModelNode,TupleExpr,VariableScopeChange
The MINUS set operator, which returns the result of the left tuple expression, except for the results that are also
returned by the right tuple expression.
- See Also:
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Field Summary
Fields inherited from class org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
leftArg, rightArg -
Constructor Summary
ConstructorsConstructorDescriptionDifference(TupleExpr leftArg, TupleExpr rightArg) Creates a new minus operator that operates on the two specified arguments. -
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 names of the bindings that are guaranteed to be present in the results produced by this tuple expression.Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.inthashCode()<X extends Exception>
voidvisit(QueryModelVisitor<X> visitor) Visits this node.Methods inherited from class org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
getAlgorithmName, getLeftArg, getRightArg, replaceChildNode, setAlgorithm, setAlgorithm, setLeftArg, setRightArg, visitChildrenMethods 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
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Constructor Details
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Difference
public Difference() -
Difference
Creates a new minus operator that operates on the two specified arguments.- Parameters:
leftArg- The left argument of the minus operator.rightArg- The right argument of the minus operator.
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Method Details
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getBindingNames
Description copied from interface:TupleExprGets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.- Returns:
- A set of binding names.
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getAssuredBindingNames
Description copied from interface:TupleExprGets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.- Returns:
- A set of binding names.
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visit
Description copied from interface:QueryModelNodeVisits this node. The node reports itself to the visitor with the proper runtime type.- Throws:
X extends Exception
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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 classBinaryTupleOperator
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hashCode
public int hashCode()- Overrides:
hashCodein classBinaryTupleOperator
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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 classBinaryTupleOperator- Returns:
- A deep clone of this query model node.
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