Package org.eclipse.rdf4j.query.algebra
Class Var
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.Var
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- All Implemented Interfaces:
Serializable
,Cloneable
,GraphPatternGroupable
,QueryModelNode
,ValueExpr
,VariableScopeChange
public class Var extends AbstractQueryModelNode implements ValueExpr
A variable that can contain a Value.- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Var
clone()
Returns a (deep) clone of this query model node.boolean
equals(Object other)
Returns true if this query model node and its children are recursively equal to o and its children.String
getName()
String
getSignature()
Default implementation ofQueryModelNode.getSignature()
that prints the name of the node's class.Value
getValue()
int
hashCode()
boolean
hasValue()
boolean
isAnonymous()
boolean
isConstant()
void
setAnonymous(boolean anonymous)
void
setConstant(boolean constant)
void
setName(String name)
void
setValue(Value value)
<X extends Exception>
voidvisit(QueryModelVisitor<X> visitor)
Visits this node.-
Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceChildNode, replaceNodeInList, replaceWith, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toString, visitChildren
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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, getTotalTimeNanosActual, replaceChildNode, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visitChildren
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Method Detail
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setAnonymous
public void setAnonymous(boolean anonymous)
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isAnonymous
public boolean isAnonymous()
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getName
public String getName()
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setName
public void setName(String name)
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setValue
public void setValue(Value value)
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hasValue
public boolean hasValue()
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getValue
public Value getValue()
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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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getSignature
public String getSignature()
Description copied from class:AbstractQueryModelNode
Default implementation ofQueryModelNode.getSignature()
that prints the name of the node's class.- Specified by:
getSignature
in interfaceQueryModelNode
- Overrides:
getSignature
in classAbstractQueryModelNode
- Returns:
- The node's signature, e.g. SLICE (offset=10, limit=10).
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equals
public boolean equals(Object other)
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 classObject
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clone
public Var 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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isConstant
public boolean isConstant()
- Returns:
- Returns the constant.
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setConstant
public void setConstant(boolean constant)
- Parameters:
constant
- The constant to set.
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