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Stop Token Filter - enable_position_increments, closes #1182.

This commit is contained in:
Shay Banon 2011-07-29 21:31:48 +03:00
parent a09ed1468c
commit 7271a80b50
1 changed files with 11 additions and 1 deletions
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12
modules/elasticsearch/src/main/java/org/elasticsearch/index/analysis/StopTokenFilterFactory.java
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@ -22,6 +22,7 @@ package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.StopAnalyzer;
import org.apache.lucene.analysis.StopFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.util.Version;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
@ -40,14 +41,19 @@ public class StopTokenFilterFactory extends AbstractTokenFilterFactory {
private final boolean ignoreCase;
private final boolean enablePositionIncrements;
@Inject public StopTokenFilterFactory(Index index, @IndexSettings Settings indexSettings, Environment env, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
this.stopWords = Analysis.parseStopWords(env, settings, StopAnalyzer.ENGLISH_STOP_WORDS_SET);
this.ignoreCase = settings.getAsBoolean("ignore_case", false);
this.enablePositionIncrements = settings.getAsBoolean("enable_position_increments", version.onOrAfter(Version.LUCENE_29));
}
@Override public TokenStream create(TokenStream tokenStream) {
return new StopFilter(version, tokenStream, stopWords, ignoreCase);
StopFilter filter = new StopFilter(version, tokenStream, stopWords, ignoreCase);
filter.setEnablePositionIncrements(enablePositionIncrements);
return filter;
}
public Set<?> stopWords() {
@ -57,4 +63,8 @@ public class StopTokenFilterFactory extends AbstractTokenFilterFactory {
public boolean ignoreCase() {
return ignoreCase;
}
public boolean enablePositionIncrements() {
return this.enablePositionIncrements;
}
}