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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4425) Unclear documentation of StoredFieldVisitor.binaryValue
Date Tue, 25 Sep 2012 17:56:08 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463041#comment-13463041
] 

Adrien Grand commented on LUCENE-4425:
--------------------------------------

bq. Maybe we should fix this for 4.0? It really is an API bug...

That would be great. Maybe we should first make sure that everyone agrees that it is the codec
responsability to make the copy.
                
> Unclear documentation of StoredFieldVisitor.binaryValue
> -------------------------------------------------------
>
>                 Key: LUCENE-4425
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4425
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 4.0
>            Reporter: Adrien Grand
>            Priority: Minor
>             Fix For: 4.1, 5.0
>
>
> When reading the binary value of a stored field, a StoredFieldsReader calls StoredFieldVisitor.binaryValue(arr,
offset, length).
> Documentation currently doesn't state whether the byte[] can be reused outside of the
scope of {{StoredFieldVisitor.binaryValue}} but {{DocumentStoredFieldVisitor}} assumes (as
of r1389812) that it can.
> So {{DocumentStoredFieldVisitor}} would break with a custom {{StoredFieldsFormat}} that
would call {{StoredFieldVisitor.binaryValue}} with a slice of a reusable buffer.

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