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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4642) TokenizerFactory should provide a create method with a given AttributeSource
Date Mon, 21 Jan 2013 14:06:21 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13558780#comment-13558780
] 

Robert Muir commented on LUCENE-4642:
-------------------------------------

I'd also like to know the use case here.

Personally: I think we should remove Tokenizer(AttributeSource): it bloats the APIs and causes
ctor explosion.
There are no real use-cases in the lucene/solr codebase: its only used by a HACK (TrieTokenizerFactory
in Solr), which should instead be fixed.

AttributeFactory on the other hand is different (e.g. real use cases like numerics and collation)

                
> TokenizerFactory should provide a create method with a given AttributeSource
> ----------------------------------------------------------------------------
>
>                 Key: LUCENE-4642
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4642
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/analysis
>    Affects Versions: 4.1
>            Reporter: Renaud Delbru
>            Assignee: Steve Rowe
>              Labels: analysis, attribute, tokenizer
>             Fix For: 4.2, 5.0
>
>         Attachments: LUCENE-4642.patch, LUCENE-4642.patch
>
>
> All tokenizer implementations have a constructor that takes a given AttributeSource as
parameter (LUCENE-1826). However, the TokenizerFactory does not provide an API to create tokenizers
with a given AttributeSource.
> Side note: There are still a lot of tokenizers that do not provide constructors that
take AttributeSource and AttributeFactory.

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