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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2778) Allow easy extension of RAMDirectory
Date Tue, 30 Nov 2010 09:33:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965169#action_12965169
] 

Michael McCandless commented on LUCENE-2778:
--------------------------------------------

bq. Here's my take: personally i don't see any problem with how Shai works here, as long as
its still a proper merge.

+1

I don't think we should allow limitations of our current SCMS to dictate how we develop...

> Allow easy extension of RAMDirectory
> ------------------------------------
>
>                 Key: LUCENE-2778
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2778
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Store
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2778.patch
>
>
> RAMDirectory uses RAMFiles to store the data. RAMFile offers a newBuffer() method for
extensions to override and allocate buffers differently, from e.g. a pool or something. However,
RAMDirectory always allocates RAMFile and doesn't allow allocating a RAMFile extension, which
makes RAMFile.newBuffer() unusable.
> I think we can simply introduce a newRAMFile() method on RAMDirectory and make the RAMFiles
map protected, and it will allow really extending RAMDir.
> I will post a patch later.

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