Package org.eclipse.rdf4j.query.algebra
Class Intersection
java.lang.Object
org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
org.eclipse.rdf4j.query.algebra.Intersection
- All Implemented Interfaces:
Serializable
,Cloneable
,QueryModelNode
,TupleExpr
,VariableScopeChange
The INTERSECT set operator, which returns the intersection of the result sets of two tuple expressions.
- See Also:
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Field Summary
Fields inherited from class org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
leftArg, rightArg
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Constructor Summary
ConstructorDescriptionIntersection
(TupleExpr leftArg, TupleExpr rightArg) Creates a new intersection operator that operates on the two specified arguments. -
Method Summary
Modifier and TypeMethodDescriptionclone()
Returns a (deep) clone of this query model node.boolean
Returns 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.int
hashCode()
<X extends Exception>
voidvisit
(QueryModelVisitor<X> visitor) Visits this node.Methods inherited from class org.eclipse.rdf4j.query.algebra.BinaryTupleOperator
getAlgorithmName, getLeftArg, getOrder, getRightArg, getSupportedOrders, replaceChildNode, setAlgorithm, setAlgorithm, setLeftArg, setOrder, setRightArg, visitChildren
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
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
Methods 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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Intersection
public Intersection() -
Intersection
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Method Details
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getBindingNames
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getAssuredBindingNames
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visit
Description copied from interface:QueryModelNode
Visits this node. The node reports itself to the visitor with the proper runtime type.- Throws:
X
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equals
Description copied from interface:QueryModelNode
Returns true if this query model node and its children are recursively equal to o and its children.- Specified by:
equals
in interfaceQueryModelNode
- Overrides:
equals
in classBinaryTupleOperator
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hashCode
public int hashCode()- Overrides:
hashCode
in classBinaryTupleOperator
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clone
Description copied from interface:QueryModelNode
Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.- Specified by:
clone
in interfaceQueryModelNode
- Specified by:
clone
in interfaceTupleExpr
- Overrides:
clone
in classBinaryTupleOperator
- Returns:
- A deep clone of this query model node.
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