Class NameNode
- java.lang.Object
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- com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
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- com.yahoo.searchlib.rankingexpression.rule.NameNode
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- All Implemented Interfaces:
java.io.Serializable
public final class NameNode extends ExpressionNode
An opaque name in a ranking expression. This is used to represent names passed to the context and interpreted by the given context in a way which is opaque to the ranking expressions.- Author:
- Simon Thoresen Hult
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description NameNode(java.lang.String name)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Value
evaluate(Context context)
Returns the value of evaluating this expression over the given context.java.lang.String
getValue()
java.lang.StringBuilder
toString(java.lang.StringBuilder string, SerializationContext context, java.util.Deque<java.lang.String> path, CompositeNode parent)
Returns a script instance of this based on the supplied script functions.com.yahoo.tensor.TensorType
type(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
Returns the type this will return if evaluated with the given context.-
Methods inherited from class com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
equals, hashCode, toString, toString
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Method Detail
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getValue
public java.lang.String getValue()
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toString
public java.lang.StringBuilder toString(java.lang.StringBuilder string, SerializationContext context, java.util.Deque<java.lang.String> path, CompositeNode parent)
Description copied from class:ExpressionNode
Returns a script instance of this based on the supplied script functions.- Specified by:
toString
in classExpressionNode
- Parameters:
string
- the StringBuilder that will be appended tocontext
- the serialization contextpath
- the call path to this, used for cycle detection, or null if this is a rootparent
- the parent node of this, or null if it a root- Returns:
- the main script, referring to script instances.
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type
public com.yahoo.tensor.TensorType type(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
Description copied from class:ExpressionNode
Returns the type this will return if evaluated with the given context.- Specified by:
type
in classExpressionNode
- Parameters:
context
- the variable type bindings to use for this evaluation
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evaluate
public Value evaluate(Context context)
Description copied from class:ExpressionNode
Returns the value of evaluating this expression over the given context.- Specified by:
evaluate
in classExpressionNode
- Parameters:
context
- the variable bindings to use for this evaluation
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