Please tell me I have a typo in my Persistence.xml

[Luke Murphy]

Right I have been banging my head against the wall trying to get a simple EntityManagerFactory created.

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd"
        version="1.0">
  <persistence-unit name="my-app" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <!--  enable auto discovery -->
    <exclude-unlisted-classes>false</exclude-unlisted-classes>
    <properties>
      <property name="javax.persistence.jdbc.driver" value="com.ibm.db2.jcc.DB2Driver" />
			<property name="javax.persistence.jdbc.url" value="jdbc:db2://localhost:50000/builddb" />
			<property name="javax.persistence.jdbc.user" value="user" />
			<property name="javax.persistence.jdbc.password" value="pass" />
    </properties>
  </persistence-unit>
</persistence>

To try to get an EntityManagerFactory I do:

emf = Persistence.createEntityManagerFactory("my-app");

My persistence.xml is in a META-INF directory and I have tried both using the project as is in eclipse and packaging it all into a jar.
No matter what I try I get:

javax.persistence.PersistenceException: No Persistence provider for EntityManager named my-app

I have written a simple JDBC program with the same db details and that connects. So nothing wrong with my DB,.
So what's up?

Note: I am using eclipselink

Cheers.

[Luke Murphy]

Resolved. I only had the javax.persistence_x jar that comes as part of the
eclipselink install. I was missing the eclipselink.jar.

[Wouter Oet]

You do understand that javax.persistence aka JPA is a specification and that eclipselink is an implementation of that specification?

[Luke Murphy]

Wouter Oet wrote:You do understand that javax.persistence aka JPA is a specification and that eclipselink is an implementation of that specification?

Correct. As is hibernate. You need an implementation on your classpath. I was looking for the simpliest in terms of configuration and footprint.