Package com.yahoo.searchlib.rankingexpression.rule

Class GeneratorLambdaFunctionNode

java.lang.Object

com.yahoo.searchlib.rankingexpression.rule.ExpressionNode

com.yahoo.searchlib.rankingexpression.rule.CompositeNode

com.yahoo.searchlib.rankingexpression.rule.GeneratorLambdaFunctionNode

All Implemented Interfaces:

Serializable

public class GeneratorLambdaFunctionNode
extends CompositeNode

A tensor generating function, whose arguments are determined by a tensor type

Author:

bratseth

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
GeneratorLambdaFunctionNode(com.yahoo.tensor.TensorType type, ExpressionNode generator)

Method Summary

Modifier and Type	Method	Description
com.yahoo.searchlib.rankingexpression.rule.GeneratorLambdaFunctionNode.LongListToDoubleLambda	asLongListToDoubleOperator()	Returns this as an operator which converts a list of integers into a double
List<ExpressionNode>	children()	Returns a read-only list containing the immediate children of this composite
Value	evaluate(Context context)	Evaluate this in a context which must have the arguments bound
CompositeNode	setChildren(List<ExpressionNode> children)	Returns a copy of this where the children is replaced by the given children.
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

GeneratorLambdaFunctionNode

public GeneratorLambdaFunctionNode(com.yahoo.tensor.TensorType type,
                                   ExpressionNode generator)

Method Detail

children

public List<ExpressionNode> children()

Description copied from class: CompositeNode

Returns a read-only list containing the immediate children of this composite

Specified by:

children in class CompositeNode

Returns:

The children of this.

setChildren

public CompositeNode setChildren(List<ExpressionNode> children)

Description copied from class: CompositeNode

Returns a copy of this where the children is replaced by the given children.

Specified by:

setChildren in class CompositeNode

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)

Evaluate this in a context which must have the arguments bound

Specified by:

evaluate in class ExpressionNode

Parameters:

context - the variable bindings to use for this evaluation

asLongListToDoubleOperator

public com.yahoo.searchlib.rankingexpression.rule.GeneratorLambdaFunctionNode.LongListToDoubleLambda asLongListToDoubleOperator()

Returns this as an operator which converts a list of integers into a double