Package org.eclipse.rdf4j.query.algebra
Class If
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.If
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- All Implemented Interfaces:
Serializable
,Cloneable
,QueryModelNode
,ValueExpr
,VariableScopeChange
public class If extends AbstractQueryModelNode implements ValueExpr
The IF function, as defined in SPARQL 1.1 Query.- Author:
- Jeen Broekstra
- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description If
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.ValueExpr
getAlternative()
ValueExpr
getCondition()
Gets the argument of this unary value operator.ValueExpr
getResult()
int
hashCode()
void
replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Replaces one of the child nodes with a new node.void
setAlternative(ValueExpr alternative)
void
setCondition(ValueExpr condition)
Sets the condition argument of this unary value operator.void
setResult(ValueExpr result)
<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
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, getSignature, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString
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Method Detail
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getCondition
public ValueExpr getCondition()
Gets the argument of this unary value operator.- Returns:
- The operator's argument.
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setCondition
public void setCondition(ValueExpr condition)
Sets the condition argument of this unary value operator.- Parameters:
condition
- The (new) condition argument for this operator, must not be null.
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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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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 If 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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setResult
public void setResult(ValueExpr result)
- Parameters:
result
- The result to set.
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getResult
public ValueExpr getResult()
- Returns:
- Returns the result.
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setAlternative
public void setAlternative(ValueExpr alternative)
- Parameters:
alternative
- The alternative to set.
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getAlternative
public ValueExpr getAlternative()
- Returns:
- Returns the alternative.
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