Package com.yahoo.schema.processing

Class NGramMatch

java.lang.Object

com.yahoo.schema.processing.Processor

com.yahoo.schema.processing.NGramMatch

public class NGramMatch
extends Processor

The implementation of "gram" matching - splitting the incoming text and the queries into n-grams for matching. This will also validate the gram settings.

Author:

bratseth

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_GRAM_SIZE

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

deployLogger, queryProfiles, rankProfileRegistry, schema

Constructor Summary

Constructors

Constructor	Description
NGramMatch(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)	Processes the input search definition by modifying the input search and its documents, and returns the input search definition.

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

Field Details

DEFAULT_GRAM_SIZE

public static final int DEFAULT_GRAM_SIZE

See Also:

• Constant Field Values

Constructor Details

NGramMatch

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

Method Details

process

public void process(boolean validate,
 boolean documentsOnly)

Description copied from class: Processor

Processes the input search definition by modifying the input search and its documents, and returns the input search definition.

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)