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https://issues.apache.org/jira/browse/OPENJPA-1860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928073#action_12928073
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Hugh commented on OPENJPA-1860:
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Michael,
I have a template which I keep in META-INF/orm.xml
This is inside a jar file so I can't modify it directly. I have to intercept
the getResource request in my custom classloader and write my custom xml.orm
based on information (the table name) that's only available at runtime. I then
return this resource URL.
Business may add new tables at any time and deploy a new instance of the
application to service that new table so I have no idea about table names at
compile time.
Kevin,
I'm using OpenJPA 2.0.1 and I'll get you the rest of the information shortly.
I'll do a test to see if orm.xml is ignored without any modifications from me
for NamedQueries as well if I have time.
> How do I get OpenJPA to use my custom classloader to load Entity classes?
> -------------------------------------------------------------------------
>
> Key: OPENJPA-1860
> URL: https://issues.apache.org/jira/browse/OPENJPA-1860
> Project: OpenJPA
> Issue Type: Question
> Components: jpa
> Affects Versions: 2.0.1
> Environment: OpenJPA 2.0.1 Java 1.6-22
> Reporter: Hugh
>
> I have written a custom classloader and I can't work out how to get OpenJPA
> to use it to load my entity classes.
> I've followed instructions I found to set
> Thread.currentThread().setContextClassLoader() at startup before loading any
> EntityManager and it seems to load the OpenJPA classes and a lot of others,
> but not the class I'm interested in.
> Is this the right approach?
> If so, where have I gone wrong?
> (http://openjpa.208410.n2.nabble.com/Dynamic-Table-value-td5645906.html)
> If not, how should this be done?
> Is there some sort of guide to accomplishing this that someone could point me
> to?
> Thanks.
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