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From "Uwe Schindler (JIRA)" <>
Subject [jira] Updated: (LUCENE-1987) Remove rest of analysis deprecations (Token, CharacterCache)
Date Wed, 21 Oct 2009 10:27:59 GMT


Uwe Schindler updated LUCENE-1987:

    Attachment: LUCENE-1987-StopFilter.patch

A new patch which resolves the Benchmark problem by adding a static method in NewAnalyzerTask
that loads an analyzer by class name:
public static final Analyzer createAnalyzer(String className) throws Exception{
    final Class<? extends Analyzer> clazz = Class.forName(className).asSubclass(Analyzer.class);
    try {
      // first try to use a ctor with version parameter (needed for many new Analyzers that
have no default one anymore
      Constructor<? extends Analyzer> cnstr = clazz.getConstructor(Version.class);
      return cnstr.newInstance(Version.LUCENE_CURRENT);
    } catch (NoSuchMethodException nsme) {
      // otherwise use default ctor
      return clazz.newInstance();

This method is reused at other places where an Analyzer is created by a config property.

This patch now passes all test. There are still the problems with Analyzer and QueryParsr
with wrong default properties, but I would like to commit this first and then solve the problems,
also in 2.9.1.

Mike, are you OK with that?

> Remove rest of analysis deprecations (Token, CharacterCache)
> ------------------------------------------------------------
>                 Key: LUCENE-1987
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Task
>          Components: Analysis
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 2.9.1, 3.0
>         Attachments: LUCENE-1987-StopFilter-backport29.patch, LUCENE-1987-StopFilter-BW.patch,
LUCENE-1987-StopFilter.patch, LUCENE-1987-StopFilter.patch, LUCENE-1987-StopFilter.patch,
LUCENE-1987-StopFilter.patch, LUCENE-1987-StopFilter.patch, LUCENE-1987.patch, LUCENE-1987.patch,
> These removes the rest of the deprecations in the analysis package:
> - -Token's termText field-- (DONE)
> - -eventually un-deprecate ctors of Token taking Strings (they are still useful) ->
if yes remove deprec in 2.9.1- (DONE)
> - -remove CharacterCache and use Character.valueOf() from Java5- (DONE)
> - Stopwords lists
> - Remove the backwards settings from analyzers (acronym, posIncr,...). They are deprecated,
but we still have the VERSION constants. Do not know, how to proceed. Keep the settings alive
for index compatibility? Or remove it together with the version constants (which were undeprecated).

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