Package com.yahoo.searchlib.rankingexpression.transform

Class TensorMaxMinTransformer<CONTEXT extends TransformContext>

java.lang.Object

com.yahoo.searchlib.rankingexpression.transform.ExpressionTransformer<CONTEXT>

com.yahoo.searchlib.rankingexpression.transform.TensorMaxMinTransformer<CONTEXT>

public class TensorMaxMinTransformer<CONTEXT extends TransformContext>
extends ExpressionTransformer<CONTEXT>

Transforms min(tensor,dim) and max(tensor,dim) to reduce(tensor,min/max,dim). This is necessary as the backend does not recognize these forms of min and max.

Author:

lesters

Constructor Summary

Constructors

Constructor	Description
TensorMaxMinTransformer()

Method Summary

Modifier and Type	Method	Description
ExpressionNode	transform(ExpressionNode node, CONTEXT context)	Transforms an expression node and returns the transformed node.
static ExpressionNode	transformFunctionNode(FunctionNode node, com.yahoo.tensor.evaluation.TypeContext<Reference> context)

Methods inherited from class com.yahoo.searchlib.rankingexpression.transform.ExpressionTransformer

transform, transformChildren

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TensorMaxMinTransformer

public TensorMaxMinTransformer()

Method Details

transform

public ExpressionNode transform(ExpressionNode node,
 CONTEXT context)

Description copied from class: ExpressionTransformer

Transforms an expression node and returns the transformed node. This ic called with the root node of an expression to transform by clients of transformers. Transforming nested expression nodes are left to each transformer.

Specified by:

transform in class ExpressionTransformer<CONTEXT extends TransformContext>

transformFunctionNode

public static ExpressionNode transformFunctionNode(FunctionNode node,
 com.yahoo.tensor.evaluation.TypeContext<Reference> context)