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POJPA 2.0: Adding entity classes to PersistenceUnit *from different jar* automatically
 

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    <p>I have a maven-built CDI-based Java SE app, which has a <em>core</em> module, and other modules.<br> Core has the <code>persistence.xml</code> and some entities. Modules have additional entities.</p> <p>How can I add the entities to the spotlight of the persistence unit?</p> <p>I have read Hibernate manual, <a href="http://docs.jboss.org/hibernate/stable/entitymanager/reference/en/html/configuration.html#setup-configuration-packaging" rel="noreferrer">http://docs.jboss.org/hibernate/stable/entitymanager/reference/en/html/configuration.html#setup-configuration-packaging</a></p> <p>I have also seen these SO questions</p> <ul> <li><a href="https://stackoverflow.com/questions/1211777/how-can-i-merge-extend-persistence-units-from-different-jars">How can I merge / extend persistence units from different JARs?</a></li> <li><a href="https://stackoverflow.com/questions/3774663/define-jpa-entity-classes-outside-of-persistence-xml">define jpa entity classes outside of persistence.xml</a></li> <li><a href="https://stackoverflow.com/questions/2838634/programmatically-loading-entity-classes-with-jpa-2-0">Programmatically loading Entity classes with JPA 2.0?</a></li> </ul> <p>I am looking for a solution where Hibernate would scan for all loaded classes, or, would pick up some config file form the other jars (like e.g. CDI does with <code>beans.xml</code>). </p> <p>My app does not use Spring. I don't insist on portability - I'll stick with Hibernate.</p> <ul> <li><strong>Is there some such solution?</strong></li> <li><strong>Is there's a way to create a PU from <code>persistence.xml</code> and add classes to it programmatically?</strong></li> <li><strong>Can I add @Entity classes to <code>EntityManagerFactory</code> after it was created?</strong></li> </ul> <hr> <p><em>Update:</em> I found in <code>org.​hibernate.​ejb.​Ejb3Configuration</code>: </p> <pre><code>public Ejb3Configuration configure(String persistenceUnitName, Map integration) </code></pre> <p><a href="http://docs.jboss.org/hibernate/entitymanager/3.6/javadocs/" rel="noreferrer">http://docs.jboss.org/hibernate/entitymanager/3.6/javadocs/</a></p>
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    1. COMaybe this could be a solution: http://stackoverflow.com/questions/15026302/multiple-jars-single-persistence-unit-solution
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