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Re: [gemini-dev] JPA in a WAB 
On 16 Apr 2010, at 20:32, Shaun Smith wrote:

On 16/4/2010 3:30 PM, Mike Keith wrote:
Well, we wouldn't want Gemini web to have to look through all of the WAR looking for persistence.xml files, so maybe we could limit the support to just looking for WEB-INF/classes/META-INF/persistence.xml?

That would be my opening suggestion. :)

The other places to look would be in jars in WEB-INF/lib to see if they have a META-INF/persistence.xml.  This may be expensive so perhaps it could be optional?

The web container already trawls through the JARs in WEB-INF/lib looking for class path headers, so this could be done.

Glyn


    Shaun

On 4/16/2010 2:03 PM, Shaun Smith wrote:
I'd like to propose Gemini Web provide support for JPA in WABs.

It's pretty common for developers to put both their web components and their backing JPA Entities into a WAR and so I think it would be useful to provide support for this configuration in Gemini.  I think support for JPA in a WAR would amount to detection of a persistence.xml file inside the WAR and the addition of the necessary "Meta-Persistence" entry into the Manifest of the WAB.  And coordination of Gemini JPA and Web services would be necessary to ensure peaceful co-existence when a bundle contains both JPA and web content.

Before going deeper does anyone have any thoughts on this?  Is this already in the plans for Gemini Web?

    Shaun

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Shaun Smith | Principal Product Manager
Phone: +19055023094
Oracle Server Technologies, Oracle TopLink
ORACLE Canada | 110 Matheson Boulevard West, Suite 100, Mississauga, Ontario | L5R 3P4
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<oracle_sig_logo.gif><http://www.oracle.com/>
Shaun Smith | Principal Product Manager
Phone: +19055023094
Oracle Server Technologies, Oracle TopLink
ORACLE Canada | 110 Matheson Boulevard West, Suite 100, Mississauga, Ontario | L5R 3P4
<green-for-email-sig_0.gif><http://www.oracle.com/commitment> Oracle is committed to developing practices and products that help protect the environment
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