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https://issues.apache.org/jira/browse/DERBY-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12483484
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Luigi Lauro commented on DERBY-2469:
------------------------------------

Done some discoveries about JNLP PersistenceService limits, which are harsher 
than I initially thought.

I'm investigating if a derby storage can be easily done given these limits.

You can read about discoveries and discussion here:

http://thread.gmane.org/gmane.comp.apache.db.derby.devel/39038
http://thread.gmane.org/gmane.comp.apache.db.derby.devel/39044

> Java Web Start JNLP PersistenceService API storage support
> ----------------------------------------------------------
>
>                 Key: DERBY-2469
>                 URL: https://issues.apache.org/jira/browse/DERBY-2469
>             Project: Derby
>          Issue Type: New Feature
>          Components: Store
>    Affects Versions: 10.2.2.0
>         Environment: Java Web Start
>            Reporter: Luigi Lauro
>            Priority: Minor
>         Attachments: JNLPStorageFactory.java
>
>
> I would love to have Derby write/read to the storage area provided by the 
> JNLP PersistenceService API.
> Since Derby is now bundled with the Java6 JDK as JavaDB, I think this  
> integration would go a long way towards making derby more developer- friendly 
> in Java Web Start environments, where using the sandbox tools Sun provides us 
> it the right way to go, instead of working  around it and force the user to 
> give the app the authorization to write on the hard drive IMHO.
> I'm investigating the effort needed to provide an implementation of the 
> WritableStorageFactory interface around the PersistenceService API, and if 
> that's doable in a few days work, I will start working on it and submit a 
> patch for testing/approval ASAP.
> Feel free to volounteer and provide pointers/hints/whatever, it's really 
> appreciate, especially since I currently know nothing of derby internals.

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