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https://issues.apache.org/jira/browse/ISIS-651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13880433#comment-13880433
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ASF subversion and git services commented on ISIS-651:
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Commit 2483ca661ff9536cbaf4b0a94aa6bb9d6922959d in branch refs/heads/master
from [~danhaywood]
[ https://git-wip-us.apache.org/repos/asf?p=isis.git;h=2483ca6 ]
ISIS-651: minor improvements to core
... to better support JRebel (in testing Estatio).
> Prereqs to possible JRebel support
> ----------------------------------
>
> Key: ISIS-651
> URL: https://issues.apache.org/jira/browse/ISIS-651
> Project: Isis
> Issue Type: Improvement
> Components: Core, Objectstore: JDO
> Affects Versions: objectstore-jdo-1.3.0, core-1.3.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Minor
> Fix For: objectstore-jdo-1.4.0, core-1.4.0
>
>
> Make JDO PersistenceManagerFactory accessible so can be interacted with
> outside of Isis runtime
> Invalidate Isis spec cache by way of class (not just by object).
> ~~~
> need to be able to do similar with the DN metadata:
> http://www.datanucleus.org/servlet/jira/browse/NUCCORE-1104
> Assuming that there's auto-enhancement within the IDE, this means that JRebel
> picks up each class twice: once for the unenhanced class, then almost
> immediately for the enhanced class. Therefore, I think that all that may be
> required is to remove the ClassMetaData whenever an unenhanced class is
> reloaded DN's will lazily recreate metadata as required.
> An enhancement might be to do the enhancement within the JRebel plugin (and
> not in the IDE). This would require the enhancement is done in a separate
> classloader; it (obviously!) isn't allowed to reference the java.lang.Class
> being loaded within the plugin itself. As enhancement does cause this to
> occur, it must be namespaced off to a separate classloader.
> resources:
> -
> http://www.datanucleus.org/servlet/wiki/pages/viewpage.action?pageId=6619188
> (Metadata Generation, programmatic running of Enhancement)
> - http://markmail.org/message/xn6fowrxqeucac26 (useful forum messages
> hinting on the classloader stuff)
> - http://www.datanucleus.org/products/accessplatform/jpa/enhancer.html#api
> (background notes)
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