fr.gouv.culture.sdx.search.lucene.analysis
Class MetaAnalyzer

java.lang.Object
  org.apache.lucene.analysis.Analyzer
      fr.gouv.culture.sdx.search.lucene.analysis.AbstractAnalyzer
          fr.gouv.culture.sdx.search.lucene.analysis.MetaAnalyzer

All Implemented Interfaces:

Analyzer, java.io.Serializable, org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.logger.LogEnabled, org.apache.excalibur.xml.sax.XMLizable

public class MetaAnalyzer
extends AbstractAnalyzer

A dispatcher for field specific analyzers.

This analyzer knows about specific analyzers for the fields of a document base. Hence, when its tokenStream(fieldName, reader) method is called, it attempts to dispatch the task to a specific analyzer for the given field name.

See Also:

Serialized Form

Field Summary

protected static java.lang.String

ANALYZER_TYPE

Fields inherited from class fr.gouv.culture.sdx.search.lucene.analysis.AbstractAnalyzer

logger

Constructor Summary

MetaAnalyzer()
Creates a MetaAnalyzer A super.getLog() must be set and then this MetaAnalyzer must be setUp.

Method Summary

protected java.lang.String	getAnalyzerType()
FieldList	getFieldList() Returns a the FieldList for this MetaAnalyzer (basically a Hashtable of all the Fields)
void	setUp(FieldList fields) Builds an analyzer with definitions for fields.
org.apache.lucene.analysis.TokenStream	tokenStream(java.io.Reader reader) Deprecated. use tokenStream(String, Reader) instead.
org.apache.lucene.analysis.TokenStream	tokenStream(java.lang.String fieldName, java.io.Reader reader) Tokenizes contents.

Methods inherited from class fr.gouv.culture.sdx.search.lucene.analysis.AbstractAnalyzer

configure, enableLogging, toSAX

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

getPositionIncrementGap

Methods inherited from class java.lang.Object

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

Field Detail

ANALYZER_TYPE

protected static final java.lang.String ANALYZER_TYPE

See Also:

Constant Field Values

Constructor Detail

MetaAnalyzer

public MetaAnalyzer()

Creates a MetaAnalyzer

A super.getLog() must be set and then this MetaAnalyzer must be setUp.

See Also:

setUp(fr.gouv.culture.sdx.search.lucene.FieldList)

Method Detail

getAnalyzerType

protected java.lang.String getAnalyzerType()

Specified by:

getAnalyzerType in class AbstractAnalyzer

setUp

public void setUp(FieldList fields)
           throws SDXException

Builds an analyzer with definitions for fields.

Parameters:

fields - The fields and their definitions (cannot be null).

Throws:

SDXException

tokenStream

public org.apache.lucene.analysis.TokenStream tokenStream(java.lang.String fieldName,
                                                          java.io.Reader reader)

Tokenizes contents.

The tokenizing is never done by this object. Instead, using the provided field name, it will try to get a specific analyzer from the fields definition. If it can't find one, it will use the default analyzer.

Specified by:

tokenStream in interface Analyzer

Specified by:

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

Parameters:

fieldName - The field name for tokenization

reader - The reader

getFieldList

public FieldList getFieldList()

Returns a the FieldList for this MetaAnalyzer (basically a Hashtable of all the Fields)

Returns:

FieldList

tokenStream

public org.apache.lucene.analysis.TokenStream tokenStream(java.io.Reader reader)

Deprecated. use tokenStream(String, Reader) instead.

Creates a TokenStream which tokenizes all the text in the provided Reader. Provided for backward compatibility only.

See Also:

Analyzer.tokenStream(java.io.Reader)