Package com.yahoo.searchlib.rankingexpression.rule

Class NameNode

java.lang.Object

com.yahoo.searchlib.rankingexpression.rule.ExpressionNode

com.yahoo.searchlib.rankingexpression.rule.NameNode

All Implemented Interfaces:

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

Constructor Summary

Constructors

Constructor	Description
NameNode(String name)

Method Summary

Modifier and Type	Method	Description
Value	evaluate(Context context)	Returns the value of evaluating this expression over the given context.
String	getValue()
StringBuilder	toString(StringBuilder string, SerializationContext context, Deque<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

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NameNode

public NameNode(String name)

Method Detail

getValue

public String getValue()

toString

public StringBuilder toString(StringBuilder string,
                              SerializationContext context,
                              Deque<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 class ExpressionNode

Parameters:

string - the StringBuilder that will be appended to

context - the serialization context

path - the call path to this, used for cycle detection, or null if this is a root

parent - the parent node of this, or null if it a root

Returns:

the main script, referring to script instances.

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 class ExpressionNode

Parameters:

context - the variable type bindings to use for this evaluation

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 class ExpressionNode

Parameters:

context - the variable bindings to use for this evaluation