Package com.yahoo.searchlib.expression
Class InterpolatedLookupNode
java.lang.Object
com.yahoo.vespa.objects.Selectable
com.yahoo.vespa.objects.Identifiable
com.yahoo.searchlib.expression.ExpressionNode
com.yahoo.searchlib.expression.FunctionNode
com.yahoo.searchlib.expression.MultiArgFunctionNode
com.yahoo.searchlib.expression.UnaryFunctionNode
com.yahoo.searchlib.expression.InterpolatedLookupNode
- All Implemented Interfaces:
Serializable
,Cloneable
This function is an instruction to retrieve the value of a named attribute.
- Author:
- arnej27959
- See Also:
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Field Summary
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Constructor Summary
ConstructorDescriptionConstructs an empty result node.InterpolatedLookupNode
(String attribute, ExpressionNode arg) Constructs an instance of this class with given attribute name and lookup argument. -
Method Summary
Modifier and TypeMethodDescriptionprotected boolean
Returns the name of the attribute whose value we do lookup in.int
hashCode()
protected void
onDeserialize
(com.yahoo.vespa.objects.Deserializer buf) protected int
protected void
onSerialize
(com.yahoo.vespa.objects.Serializer buf) setAttributeName
(String attribute) Sets the name of the attribute whose value we do lookup in.void
visitMembers
(com.yahoo.vespa.objects.ObjectVisitor visitor) Methods inherited from class com.yahoo.searchlib.expression.UnaryFunctionNode
equalsMultiArgFunction, getArg, onPrepare, onPrepareResult
Methods inherited from class com.yahoo.searchlib.expression.MultiArgFunctionNode
addArg, clone, equalsFunction, getArg, getNumArgs, onCalculate, onExecute, selectMembers
Methods inherited from class com.yahoo.searchlib.expression.FunctionNode
equalsExpression, getResult, setResult
Methods inherited from class com.yahoo.searchlib.expression.ExpressionNode
equals, execute, executeIterative, onArgument, prepare
Methods inherited from class com.yahoo.vespa.objects.Identifiable
create, createFromId, deserialize, deserializeOptional, deserializeWithId, equals, getClassId, getRawUtf8Bytes, getUtf8, putUtf8, registerClass, serialize, serializeOptional, serializeWithId, toString
Methods inherited from class com.yahoo.vespa.objects.Selectable
select, select
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Field Details
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classId
public static final int classId
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Constructor Details
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InterpolatedLookupNode
public InterpolatedLookupNode()Constructs an empty result node. NOTE: This instance is broken until non-optional member data is set. -
InterpolatedLookupNode
Constructs an instance of this class with given attribute name and lookup argument.- Parameters:
attribute
- The attribute to retrieve.arg
- Expression evaluating to the lookup argument.
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Method Details
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getAttributeName
Returns the name of the attribute whose value we do lookup in.- Returns:
- The attribute name.
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setAttributeName
Sets the name of the attribute whose value we do lookup in.- Parameters:
attribute
- The attribute to retrieve.- Returns:
- This, to allow chaining.
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onGetClassId
protected int onGetClassId()- Overrides:
onGetClassId
in classUnaryFunctionNode
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onSerialize
protected void onSerialize(com.yahoo.vespa.objects.Serializer buf) - Overrides:
onSerialize
in classMultiArgFunctionNode
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onDeserialize
protected void onDeserialize(com.yahoo.vespa.objects.Deserializer buf) - Overrides:
onDeserialize
in classMultiArgFunctionNode
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hashCode
public int hashCode()- Overrides:
hashCode
in classMultiArgFunctionNode
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equalsUnaryFunction
- Specified by:
equalsUnaryFunction
in classUnaryFunctionNode
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visitMembers
public void visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor) - Overrides:
visitMembers
in classMultiArgFunctionNode
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