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https://issues.apache.org/jira/browse/LUCENE-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742441#action_12742441
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Yonik Seeley commented on LUCENE-1804:
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OO design principal of not removing functionality - Tokenizer's superclass can
specify it's AttributeSource... why can't Tokenizer? We shouldn't disallow it
just because we can't immediately think of a use case.
bq. I am still not sure, why a simple TokenFilter does not serve the same
pupose you would like to have with Tokenizer here.
Simplest case: a Tokenizer that delegates to an existing Tokenizer or
TokenStream?
> Can't specify AttributeSource for Tokenizer
> -------------------------------------------
>
> Key: LUCENE-1804
> URL: https://issues.apache.org/jira/browse/LUCENE-1804
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Yonik Seeley
> Attachments: LUCENE-1804.patch
>
>
> One can't currently specify the attribute source for a Tokenizer like one can
> with any other TokenStream.
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