Deprecate Analyzer.tokenStream
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Key: LUCENE-1678
URL: https://issues.apache.org/jira/browse/LUCENE-1678
Project: Lucene - Java
Issue Type: Bug
Components: Analysis
Reporter: Michael McCandless
Assignee: Michael McCandless
Priority: Minor
Fix For: 2.9
The addition of reusableTokenStream to the core analyzers unfortunately broke
back compat of external subclasses:
http://www.nabble.com/Extending-StandardAnalyzer-considered-harmful-td23863822.html
On upgrading, such subclasses would silently not be used anymore, since
Lucene's indexing invokes reusableTokenStream.
I think we should should at least deprecate Analyzer.tokenStream, today, so
that users see deprecation warnings if their classes override this method. But
going forward when we want to change the API of core classes that are extended,
I think we have to introduce entirely new classes, to keep back compatibility.
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