org.apache.lucene.analysis.el
Class GreekLowerCaseFilter

java.lang.Object
  org.apache.lucene.util.AttributeSource
      org.apache.lucene.analysis.TokenStream
          org.apache.lucene.analysis.TokenFilter
              org.apache.lucene.analysis.el.GreekLowerCaseFilter

All Implemented Interfaces:

Closeable

public final class GreekLowerCaseFilter
extends org.apache.lucene.analysis.TokenFilter

Normalizes token text to lower case, removes some Greek diacritics, and standardizes final sigma to sigma.

You must specify the required Version compatibility when creating GreekLowerCaseFilter:

• As of 3.1, supplementary characters are properly lowercased.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

org.apache.lucene.util.AttributeSource.AttributeFactory, org.apache.lucene.util.AttributeSource.State

Field Summary

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

input

Constructor Summary

GreekLowerCaseFilter(org.apache.lucene.analysis.TokenStream in)
Deprecated. Use GreekLowerCaseFilter(Version, TokenStream) instead.

GreekLowerCaseFilter(org.apache.lucene.util.Version matchVersion, org.apache.lucene.analysis.TokenStream in)
Create a GreekLowerCaseFilter that normalizes Greek token text.

Method Summary

boolean

incrementToken()

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

close, end, reset

Methods inherited from class org.apache.lucene.util.AttributeSource

addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GreekLowerCaseFilter

@Deprecated
public GreekLowerCaseFilter(org.apache.lucene.analysis.TokenStream in)

Deprecated. Use GreekLowerCaseFilter(Version, TokenStream) instead.

GreekLowerCaseFilter

public GreekLowerCaseFilter(org.apache.lucene.util.Version matchVersion,
                            org.apache.lucene.analysis.TokenStream in)

Create a GreekLowerCaseFilter that normalizes Greek token text.

Parameters:

matchVersion - Lucene compatibility version, See above

in - TokenStream to filter

Method Detail

incrementToken

public boolean incrementToken()
                       throws IOException

Specified by:

incrementToken in class org.apache.lucene.analysis.TokenStream

Throws:

IOException