org.dspace.search

Class DSAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.util.StopwordAnalyzerBase

org.dspace.search.DSAnalyzer

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

DSNonStemmingAnalyzer

public class DSAnalyzer
extends org.apache.lucene.analysis.util.StopwordAnalyzerBase

Custom Lucene Analyzer that combines the standard filter, lowercase filter, stemming and stopword filters.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.Analyzer.GlobalReuseStrategy, org.apache.lucene.analysis.Analyzer.PerFieldReuseStrategy, org.apache.lucene.analysis.Analyzer.ReuseStrategy, org.apache.lucene.analysis.Analyzer.TokenStreamComponents

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.lucene.util.Version	matchVersion
protected static java.lang.String[]	STOP_WORDS
protected org.apache.lucene.analysis.util.CharArraySet	stopSet

Fields inherited from class org.apache.lucene.analysis.util.StopwordAnalyzerBase

stopwords

Constructor Summary

Constructors

Constructor and Description
DSAnalyzer(org.apache.lucene.util.Version matchVersion) Builds an analyzer

Method Summary

Methods

Modifier and Type	Method and Description
protected org.apache.lucene.analysis.Analyzer.TokenStreamComponents	createComponents(java.lang.String fieldName, java.io.Reader reader)
int	getPositionIncrementGap(java.lang.String fieldName)

Methods inherited from class org.apache.lucene.analysis.util.StopwordAnalyzerBase

getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet

Methods inherited from class org.apache.lucene.analysis.Analyzer

close, getOffsetGap, initReader, tokenStream, tokenStream

Methods inherited from class java.lang.Object

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

Field Detail

matchVersion

protected final org.apache.lucene.util.Version matchVersion

STOP_WORDS

protected static final java.lang.String[] STOP_WORDS

stopSet

protected final org.apache.lucene.analysis.util.CharArraySet stopSet

Constructor Detail

DSAnalyzer

public DSAnalyzer(org.apache.lucene.util.Version matchVersion)

Builds an analyzer

Parameters:

matchVersion - Lucene version to match

Method Detail

createComponents

protected org.apache.lucene.analysis.Analyzer.TokenStreamComponents createComponents(java.lang.String fieldName,
                                                                         java.io.Reader reader)

Specified by:

createComponents in class org.apache.lucene.analysis.Analyzer

getPositionIncrementGap

public int getPositionIncrementGap(java.lang.String fieldName)

Overrides:

getPositionIncrementGap in class org.apache.lucene.analysis.Analyzer