[jboss-user] [Installation, Configuration & DEPLOYMENT] - Re: Problem: deployment with external Derby DB.

[jaikiran]

anonymous wrote : Anywhere I have read that Derby needs "PERSISTENCE.XML"

The persistence.xml is required if you have a JPA project where you are persisting the entities through Java Persistence API. Without knowing more about your application, i am not  sure if you really need it in your application.

The persistence.xml you posted does not look correct:

<?xml version="1.0" encoding="UTF-8"?>
  | 
  | <persistence-unit name="FINCAEVT">
  | <jta-data-source></jta-data-source>
  | 
  | </persistence-unit> 

It has an empty datasource value. I guess, you wanted:

<jta-data-source>java:DerbyDS</jta-data-source>

where java:DerbyDS is the jndi name of your datasource. This way, you point your persistence unit to the datasource which holds the information about the username/password and other database related information.


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