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https://issues.apache.org/jira/browse/OPENJPA-1074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Donald Woods updated OPENJPA-1074:
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         Due Date: 15/May/09  (was: 15/May/09)
         Priority: Critical  (was: Major)
    Fix Version/s: 2.0.0

marking non-spec compliant behavior as a critical issue for 2.0.0

> OrderColumn does not maintain index upon inter-list element removal
> -------------------------------------------------------------------
>
>                 Key: OPENJPA-1074
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1074
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 2.0.0-M2
>            Reporter: Jeremy Bauer
>            Assignee: Jeremy Bauer
>            Priority: Critical
>             Fix For: 2.0.0
>
>
> The current order column reordering mechanism does not maintain a contiguous 
> index value when an item is deleted from anywhere except the end of a 
> collection.  Per the latest JPA 2.0 spec, a contiguous index value must be 
> maintained.
> The current reordering mechanism does a full delete and reinsert of the 
> container/collection table values if a reorder is required for inserts.  For 
> deletes, it just removes entries and leaves an empty index value.  The first 
> phase of the fix will be to maintain contiguous ordering using the same 
> mechanism as inserts (delete/re-insert).  The second phase will be to update 
> the ChangeTracker to record the indexes of the updated list items and to use 
> that information to provide a more intelligent update strategy in the 
> handlers.

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