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https://issues.apache.org/jira/browse/ISIS-370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Haywood updated ISIS-370:
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Component/s: Objectstore: JDO
> Provide a service to allow all @PersistenceCapable entities to be eagerly
> registered with Isis (and therefore with DataNucleus)
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: ISIS-370
> URL: https://issues.apache.org/jira/browse/ISIS-370
> Project: Isis
> Issue Type: New Feature
> Components: Objectstore: JDO
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Minor
>
> On several occasions we've hit issues with the JDO/DataNucleus objectstore
> (eg tests that just hang) that turned out to be a deadlock in the HSQLDB JDBC
> driver caused by it attempting to run DDL (for the metamodel) intermixed
> within DML. We surmised that the problem was that DataNucleus's metamodel
> was not fully created initially ... this is because Isis tells DN what the
> entities are by walking the graph from the repositories, and subtypes of
> entities are not always present in the interface of the action methods of
> those entities.
> This ticket is to provide a service that can be registered in isis.properties
> and that will eagerly register all entities with Isis, and thus JDO, so that
> this sort of problem does not occur.
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