org.dspace.search

Class DSNonStemmingAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.util.StopwordAnalyzerBase

org.dspace.search.DSAnalyzer

org.dspace.search.DSNonStemmingAnalyzer

All Implemented Interfaces:

Closeable, AutoCloseable

Deprecated.

Since DSpace 4 the system use an abstraction layer named Discovery to provide access to different search provider. The legacy system build upon Apache Lucene is likely to be removed in a future version. If you are interested in use Lucene as backend for the DSpace search system please consider to build a Lucene implementation of the Discovery interfaces

@Deprecated
public class DSNonStemmingAnalyzer
extends DSAnalyzer

Custom Lucene Analyzer that combines the standard filter, lowercase filter and stopword filter. Intentionally omits the stemming filter (which is used by DSAnalyzer)

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 inherited from class org.dspace.search.DSAnalyzer

matchVersion, STOP_WORDS, stopSet

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

stopwords

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected org.apache.lucene.analysis.Analyzer.TokenStreamComponents	createComponents(String fieldName, Reader reader) Deprecated. Create a token stream for this analyzer.

Methods inherited from class org.dspace.search.DSAnalyzer

getPositionIncrementGap

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

Constructor Detail

DSNonStemmingAnalyzer

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

Deprecated.

Builds an analyzer

Parameters:

matchVersion - Lucene version to match

Method Detail

createComponents

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

Deprecated.

Create a token stream for this analyzer. This is identical to DSAnalyzer, except it omits the stemming filter

Overrides:

createComponents in class DSAnalyzer