Package com.yahoo.schema.expressiontransforms

Class NormalizerFunctionExpander

java.lang.Object

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

com.yahoo.schema.expressiontransforms.NormalizerFunctionExpander

public class NormalizerFunctionExpander
extends com.yahoo.searchlib.rankingexpression.transform.ExpressionTransformer<RankProfileTransformContext>

Recognizes pseudo-functions and creates global-phase normalizers

Author:

arnej

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NORMALIZE_LINEAR
static final String	RECIPROCAL_RANK
static final String	RECIPROCAL_RANK_FUSION

Constructor Summary

Constructors

Constructor	Description
NormalizerFunctionExpander()

Method Summary

Modifier and Type	Method	Description
com.yahoo.searchlib.rankingexpression.rule.ExpressionNode	transform(com.yahoo.searchlib.rankingexpression.rule.ExpressionNode node, RankProfileTransformContext 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

Field Details

NORMALIZE_LINEAR

public static final String NORMALIZE_LINEAR

See Also:

• Constant Field Values

RECIPROCAL_RANK

public static final String RECIPROCAL_RANK

See Also:

• Constant Field Values

RECIPROCAL_RANK_FUSION

public static final String RECIPROCAL_RANK_FUSION

See Also:

• Constant Field Values

Constructor Details

NormalizerFunctionExpander

public NormalizerFunctionExpander()

Method Details

transform

public com.yahoo.searchlib.rankingexpression.rule.ExpressionNode transform(com.yahoo.searchlib.rankingexpression.rule.ExpressionNode node,
 RankProfileTransformContext context)

Specified by:

transform in class com.yahoo.searchlib.rankingexpression.transform.ExpressionTransformer<RankProfileTransformContext>