package names (namespaces) in subproject classes in Play Framework

Question

I am trying to create multi submodule project in PlayFramework (play framework 2.2.1).

How should I name package in submodules?

F.E. I have structure as foll

Answer 1

I've found solution.

It dosn't matter how I named packages. One requirement from play framework is to start name of package with:

• controllers - in case of naming controller package (f.e: package controllers.common;)
• models - in case of naming model package (f.e: package models.common;, or just package models; )

Runtime error:

[IllegalArgumentException: Unknown entity: models.Cart]

Is caused by Jpa/Hibernate configuration. Problem is that Jpa/Hibernate sees my entities (mark by annotation @Entity) while compilation, but in runtime dosn't. To fix that I've to manually point all my models class (entitites) in persistance.xml file as follow:

/conf/META-INF/persistence.xml

    
        org.hibernate.ejb.HibernatePersistence
        DefaultDS
            models.AppMode
            models.Customer
            models.Complaint
        
            
            
            
        
    

See more here: How to persist models entity in playframework submodule using jpa/hibernate