oracle.pg.text.lucene

Class OracleAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

oracle.pg.text.lucene.OracleAnalyzer

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class OracleAnalyzer
extends org.apache.lucene.analysis.Analyzer

This class extends Lucene's Analyzer and it has Oracle's specific customizations.

Nested Class Summary

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

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

Field Summary

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

GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY

Constructor Summary

Constructors

Constructor and Description
OracleAnalyzer() Creates a new OracleAnalyzer object with a length filter from 1 to MAX_INT and Case sensitive filter using the given Lucene version.
OracleAnalyzer(org.apache.lucene.analysis.CharArraySet stopWords) Creates a new OracleAnalyzer object with a length filter from 1 to MAX_INT and Case sensitive filter using the given Lucene version, and list of stop words.
OracleAnalyzer(org.apache.lucene.analysis.CharArraySet stopWords, int min, int max, boolean caseSensitive, boolean filterStopWords) Creates a new OracleAnalyzer object.
OracleAnalyzer(int min, int max, boolean caseSensitive, boolean filterStopWords) Creates a new OracleAnalyzer object.

Method Summary

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

close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, getVersion, normalize, setVersion, tokenStream, tokenStream

Methods inherited from class java.lang.Object

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

Constructor Detail

OracleAnalyzer

public OracleAnalyzer()

Creates a new OracleAnalyzer object with a length filter from 1 to MAX_INT and Case sensitive filter using the given Lucene version.

OracleAnalyzer

public OracleAnalyzer(org.apache.lucene.analysis.CharArraySet stopWords)

Creates a new OracleAnalyzer object with a length filter from 1 to MAX_INT and Case sensitive filter using the given Lucene version, and list of stop words.

Parameters:

stopWords - a CharArraySet object with all stop words to filter.

OracleAnalyzer

public OracleAnalyzer(org.apache.lucene.analysis.CharArraySet stopWords,
                      int min,
                      int max,
                      boolean caseSensitive,
                      boolean filterStopWords)

Creates a new OracleAnalyzer object.

Parameters:

stopWords - a CharArraySet object with all stop words to filter.

min - the minimum allowed token length. If a token is seen that does not at least meet this length then it is discarded.

max - the maximum allowed token length. If a token is seen that exceeds this length then it is discarded.

caseSensitive - if false then all tokes are translated into lower case.

filterStopWords - if true, then stop words are removed from the token stream.

OracleAnalyzer

public OracleAnalyzer(int min,
                      int max,
                      boolean caseSensitive,
                      boolean filterStopWords)

Creates a new OracleAnalyzer object.

Parameters:

min - the minimum allowed token length. If a token is seen that does not at least meet this length then it is discarded.

max - the maximum allowed token length. If a token is seen that exceeds this length then it is discarded.

caseSensitive - if false then all tokes are translated into lower case.

filterStopWords - if true, then stop words are removed from the token stream.