Package com.yahoo.searchlib.expression
Class ConstantNode
- java.lang.Object
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- com.yahoo.vespa.objects.Selectable
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- com.yahoo.vespa.objects.Identifiable
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- com.yahoo.searchlib.expression.ExpressionNode
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- com.yahoo.searchlib.expression.ConstantNode
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- All Implemented Interfaces:
Serializable
,Cloneable
public class ConstantNode extends ExpressionNode
This abstract expression node represents a function to execute.- Author:
- baldersheim, Simon Thoresen Hult
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static int
classId
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Constructor Summary
Constructors Constructor Description ConstantNode()
ConstantNode(ResultNode value)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ConstantNode
clone()
protected boolean
equalsExpression(ExpressionNode obj)
ResultNode
getResult()
Get the result of this expression.ResultNode
getValue()
protected void
onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
protected boolean
onExecute()
protected int
onGetClassId()
protected void
onPrepare()
protected void
onSerialize(com.yahoo.vespa.objects.Serializer buf)
void
visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)
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Methods inherited from class com.yahoo.searchlib.expression.ExpressionNode
equals, execute, executeIterative, onArgument, prepare
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Constructor Detail
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ConstantNode
public ConstantNode()
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ConstantNode
public ConstantNode(ResultNode value)
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Method Detail
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getValue
public ResultNode getValue()
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onGetClassId
protected int onGetClassId()
- Overrides:
onGetClassId
in classExpressionNode
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onSerialize
protected void onSerialize(com.yahoo.vespa.objects.Serializer buf)
- Overrides:
onSerialize
in classExpressionNode
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onDeserialize
protected void onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
- Overrides:
onDeserialize
in classExpressionNode
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clone
public ConstantNode clone()
- Overrides:
clone
in classExpressionNode
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visitMembers
public void visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)
- Overrides:
visitMembers
in classExpressionNode
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onPrepare
protected void onPrepare()
- Overrides:
onPrepare
in classExpressionNode
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onExecute
protected boolean onExecute()
- Overrides:
onExecute
in classExpressionNode
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getResult
public ResultNode getResult()
Description copied from class:ExpressionNode
Get the result of this expression.- Specified by:
getResult
in classExpressionNode
- Returns:
- the result as a ResultNode.
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equalsExpression
protected boolean equalsExpression(ExpressionNode obj)
- Specified by:
equalsExpression
in classExpressionNode
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