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Posted to commits@cayenne.apache.org by "Andrus Adamchik (JIRA)" <ji...@apache.org> on 2013/07/22 21:30:48 UTC

[jira] [Commented] (CAY-1843) Stop saving listeners in DataMap, add upgrade handler

    [ https://issues.apache.org/jira/browse/CAY-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715555#comment-13715555 ] 

Andrus Adamchik commented on CAY-1843:
--------------------------------------

Hi Miłosz! Many thanks for the patches. Certainly very useful. 

I have a question on the project.patch. From what I understand removing v6 upgrader makes it only possible for us to upgrade from v6 to v7. Would be great if we could preserve the possibility to upgrade from earlier versions too (i.e. upgrader should be cumulative ideally). Is there a technical reason to keep both v6 and v7 and combine them as appropriate?
                
> Stop saving listeners in DataMap, add upgrade handler
> -----------------------------------------------------
>
>                 Key: CAY-1843
>                 URL: https://issues.apache.org/jira/browse/CAY-1843
>             Project: Cayenne
>          Issue Type: Task
>            Reporter: Andrus Adamchik
>            Assignee: Andrus Adamchik
>             Fix For: 3.2M2
>
>         Attachments: core.patch, project.patch
>
>
> Per CAY-1842 we are no longer supporting listeners in DataMaps. I guess we can make it explicit - modeler should no longer save/load listeners that are already in the model, and we need an upgrade handler to give users an idea that they need to migrate listeners to the code.

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