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

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 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 Deprecated.
protected static java.lang.String[]	STOP_WORDS Deprecated.
protected org.apache.lucene.analysis.util.CharArraySet	stopSet Deprecated.

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

stopwords

Constructor Summary

Constructors

Constructor and Description
DSAnalyzer(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(java.lang.String fieldName, java.io.Reader reader) Deprecated.
int	getPositionIncrementGap(java.lang.String fieldName) Deprecated.

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

Deprecated.

STOP_WORDS

protected static final java.lang.String[] STOP_WORDS

Deprecated.

stopSet

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

Deprecated.

Constructor Detail

DSAnalyzer

public DSAnalyzer(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(java.lang.String fieldName,
                                                                         java.io.Reader reader)

Deprecated.

Specified by:

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

getPositionIncrementGap

public int getPositionIncrementGap(java.lang.String fieldName)

Deprecated.

Overrides:

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