Class FilterExpr
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.federated.algebra.FilterExpr
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- All Implemented Interfaces:
Serializable
,Cloneable
,FilterValueExpr
,QueryModelNode
,ValueExpr
,VariableScopeChange
public class FilterExpr extends AbstractQueryModelNode implements FilterValueExpr
FilterExpr maintains information for a particular FILTER expression.- Author:
- Andreas Schwarte
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description FilterExpr(ValueExpr expr, HashSet<String> vars)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description FilterExpr
clone()
Returns a (deep) clone of this query model node.ValueExpr
getExpression()
HashSet<String>
getVars()
boolean
isCompareEq()
void
replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Replaces one of the child nodes with a new node.<X extends Exception>
voidvisit(QueryModelVisitor<X> visitor)
Visits this node.<X extends Exception>
voidvisitChildren(QueryModelVisitor<X> visitor)
Visits the children of this node.-
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
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode
equals, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString
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Method Detail
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visit
public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from interface:QueryModelNode
Visits this node. The node reports itself to the visitor with the proper runtime type.- Specified by:
visit
in interfaceQueryModelNode
- Throws:
X extends Exception
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visitChildren
public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from interface:QueryModelNode
Visits the children of this node. The node callsQueryModelNode.visit(QueryModelVisitor)
on all of its child nodes.- Specified by:
visitChildren
in interfaceQueryModelNode
- Throws:
X extends Exception
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replaceChildNode
public void replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Description copied from interface:QueryModelNode
Replaces one of the child nodes with a new node.- Specified by:
replaceChildNode
in interfaceQueryModelNode
- Parameters:
current
- The current child node.replacement
- The new child node.
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getExpression
public ValueExpr getExpression()
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clone
public FilterExpr 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 interfaceValueExpr
- Overrides:
clone
in classAbstractQueryModelNode
- Returns:
- A deep clone of this query model node.
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isCompareEq
public boolean isCompareEq()
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