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From "Robert Muir (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3997) join module should not depend on grouping module
Date Wed, 18 Apr 2012 18:14:40 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13256772#comment-13256772
] 

Robert Muir commented on LUCENE-3997:
-------------------------------------

{quote}
I think that if you try to make no modules depend on other modules, you'll end up just pulling
pretty much everything into core.
{quote}

I don't think we should pull everything into core, but if we pull in the simple abstract APIs
we can 
have a more pluggable API: just like the abstract Analyzer api is in core, which Highlighter
uses,
but you can highlight UIMA or Japanese or ICU or whatever analyzers this way...


                
> join module should not depend on grouping module
> ------------------------------------------------
>
>                 Key: LUCENE-3997
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3997
>             Project: Lucene - Java
>          Issue Type: Task
>    Affects Versions: 4.0
>            Reporter: Robert Muir
>             Fix For: 4.0
>
>         Attachments: LUCENE-3997.patch, LUCENE-3997.patch
>
>
> I think TopGroups/GroupDocs should simply be in core? 
> Both grouping and join modules use these trivial classes, but join depends on grouping
just for them.
> I think its better that we try to minimize these inter-module dependencies.
> Of course, another option is to combine grouping and join into one module, but
> last time i brought that up nobody could agree on a name. 
> Anyway I think the change is pretty clean: its similar to having basic stuff like Analyzer.java
in core,
> so other things can work with Analyzer without depending on any specific implementing
modules.

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