Package com.yahoo.schema.processing

Class LiteralBoost

java.lang.Object

com.yahoo.schema.processing.Processor

com.yahoo.schema.processing.LiteralBoost

public class LiteralBoost
extends Processor

Expresses literal boosts in terms of extra indices with rank boost. One extra index named indexname_exact is added for each index having a fields with literal-boosts of zero or more (zero to support other rank profiles setting a literal boost). Complete boost values in to fields are translated to rank boosts to the implementation indices. These indices has no positional or phrase support and contains concatenated versions of each field value of complete-boosted fields indexed to indexname. A search for indexname will be rewritten to also search indexname_exaxt

Author:

bratseth

Field Summary

Fields inherited from class com.yahoo.schema.processing.Processor

deployLogger, queryProfiles, rankProfileRegistry, schema

Constructor Summary

Constructors

Constructor	Description
LiteralBoost(Schema schema, com.yahoo.config.application.api.DeployLogger deployLogger, RankProfileRegistry rankProfileRegistry, QueryProfiles queryProfiles)

Method Summary

Modifier and Type	Method	Description
void	process(boolean validate, boolean documentsOnly)	Adds extra search fields and indices to express literal boosts

Methods inherited from class com.yahoo.schema.processing.Processor

addField, fail, formatError, info, info, matchingRankSettingsIterator, newProcessException, newProcessException, process, warn, warn

Methods inherited from class java.lang.Object

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

Constructor Details

LiteralBoost

public LiteralBoost(Schema schema,
 com.yahoo.config.application.api.DeployLogger deployLogger,
 RankProfileRegistry rankProfileRegistry,
 QueryProfiles queryProfiles)

Method Details

process

public void process(boolean validate,
 boolean documentsOnly)

Adds extra search fields and indices to express literal boosts

Specified by:

process in class Processor

Parameters:

validate - true to throw exceptions on validation errors, false to make the best possible effort at completing processing without throwing an exception. If we are not validating, emitting warnings have no effect and can (but must not) be skipped.

documentsOnly - true to skip processing (including validation, regardless of the validate setting) of aspects not relating to document definitions (e.g rank profiles)