Package com.yahoo.searchlib.rankingexpression.rule

Class TensorFunctionNode

java.lang.Object

com.yahoo.searchlib.rankingexpression.rule.ExpressionNode

com.yahoo.searchlib.rankingexpression.rule.CompositeNode

com.yahoo.searchlib.rankingexpression.rule.TensorFunctionNode

All Implemented Interfaces:

Serializable

@Beta
public class TensorFunctionNode
extends CompositeNode

A node which performs a tensor function

Author:

bratseth

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TensorFunctionNode.ExpressionTensorFunction	A tensor function implemented by an expression.

Constructor Summary

Constructors

Constructor	Description
TensorFunctionNode(com.yahoo.tensor.functions.TensorFunction<Reference> function)

Method Summary

Modifier and Type	Method	Description
List<ExpressionNode>	children()	Returns a read-only list containing the immediate children of this composite
Value	evaluate(Context context)	Returns the value of evaluating this expression over the given context.
com.yahoo.tensor.functions.TensorFunction<Reference>	function()	Returns the tensor function wrapped by this
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.
static TensorFunctionNode.ExpressionTensorFunction	wrap(ExpressionNode node)
static com.yahoo.tensor.functions.ScalarFunction<Reference>	wrapScalar(ExpressionNode node)
static void	wrapScalarBlock(com.yahoo.tensor.TensorType type, List<String> dimensionOrder, String mappedDimensionLabel, List<ExpressionNode> nodes, Map<com.yahoo.tensor.TensorAddress,com.yahoo.tensor.functions.ScalarFunction<Reference>> receivingMap)
static List<com.yahoo.tensor.functions.ScalarFunction<Reference>>	wrapScalars(com.yahoo.tensor.TensorType type, List<String> dimensionOrder, List<ExpressionNode> nodes)
static Map<com.yahoo.tensor.TensorAddress,com.yahoo.tensor.functions.ScalarFunction<Reference>>	wrapScalars(Map<com.yahoo.tensor.TensorAddress,ExpressionNode> nodes)

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

TensorFunctionNode

public TensorFunctionNode(com.yahoo.tensor.functions.TensorFunction<Reference> function)

Method Detail

function

public com.yahoo.tensor.functions.TensorFunction<Reference> function()

Returns the tensor function wrapped by this

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)

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

wrap

public static TensorFunctionNode.ExpressionTensorFunction wrap(ExpressionNode node)

wrapScalars

public static Map<com.yahoo.tensor.TensorAddress,com.yahoo.tensor.functions.ScalarFunction<Reference>> wrapScalars(Map<com.yahoo.tensor.TensorAddress,ExpressionNode> nodes)

wrapScalarBlock

public static void wrapScalarBlock(com.yahoo.tensor.TensorType type,
                                   List<String> dimensionOrder,
                                   String mappedDimensionLabel,
                                   List<ExpressionNode> nodes,
                                   Map<com.yahoo.tensor.TensorAddress,com.yahoo.tensor.functions.ScalarFunction<Reference>> receivingMap)

wrapScalars

public static List<com.yahoo.tensor.functions.ScalarFunction<Reference>> wrapScalars(com.yahoo.tensor.TensorType type,
                                                                                     List<String> dimensionOrder,
                                                                                     List<ExpressionNode> nodes)

wrapScalar

public static com.yahoo.tensor.functions.ScalarFunction<Reference> wrapScalar(ExpressionNode node)