Posts tagged: JVx EE

JVx EE 1.0.1 is out

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What is JVx EE?

It is a small library that allows you to create backend applications for your frontends. Simply re-use your existing domain model and create a JVx application that uses a domain model instead of direct database connections.

It's licensed under Apache 2.0 and is available here.

What's new?

We reviewed the code and fixed some smaller bugs. We added an example application that shows how it works.

A short example

Session.java

public EntityManager getEntityManager() throws Exception
{
    EntityManager em = (EntityManager)get("entityManager");
       
    if (em == null)
    {
        EntityManagerFactory emf = Persistence.createEntityManagerFactory("jvxee");  
        em = emf.createEntityManager();
           
        put("entityManager", em);
    }
       
    return em;
}

Screen.java

public IStorage getCustomer() throws Exception
{
    JPAStorage jpaCustomer = (JPAStorage)get("customer");

    if (jpaCustomer == null)
    {
        EntityManager em = getEntityManager();
               
        jpaCustomer = new JPAStorage(Customer.class);
        jpaCustomer.setEntityManager(em);
               
        CustomerEAO customerEAO = new CustomerEAO();
        customerEAO.setEntityManager(em);
               
        jpaCustomer.getJPAAccess().setExternalEAO(customerEAO);
        jpaCustomer.open();
               
        put("customer", jpaCustomer);
    }
       
    return jpaCustomer;
}

public IStorage getCustomerEducation() throws Exception
{
    JPAStorage jpaCustomerEducation = (JPAStorage)get("customerEducation");
       
    if (jpaCustomerEducation == null)
    {
        jpaCustomerEducation = new JPAStorage(Customer.class);
        jpaCustomerEducation.setDetailEntity(Education.class);
        jpaCustomerEducation.setEntityManager(getEntityManager());
        jpaCustomerEducation.open();
               
        put("customerEducation", jpaCustomerEducation);
    }
       
    return jpaCustomerEducation;
}

JVx EE Source Code is available

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The scource code is online. Thanks to Stefan for his great work!

Check out the project page.

In the coming weeks we will finalize the documentation and build the binaries.

You find the JPA integration and a complete example application in the repository.
Have fun.

JVx EE

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Our new project is created and we are preparing the source upload.

JVx EE

What is JVx EE?

It's the integration of JPA 2.0 in JVx. Create professional backend software with JVx and use your domain model which is already available in your Java EE based web application. With JVx EE you can use the configured EntityManager and JPA implementation of your web application. Reuse your existing DAOs or EAOs without changes in your application.

With JVx EE it is possible to create a standard JVx application that is connected to your domain model, e.g.:

JPAStorage jpaAddress = new JPAStorage(Address.class);
jpaAddress.setEntityManager(getEntityManager());
jpaAddress.open();

or with a custom EAO

CustomerEAO eaoCustomer = new CustomerEAO();
eaoCustomer.setEntityManager(getEntityManager());

JPAStorage jpaCustomer = new JPAStorage(Customer.class);
jpaCustomer.setEntityManager(getEntityManager());
jpaCustomer.getJPAAccess().setExternalEAO(eaoCustomer);
jpaCustomer.open();

Do you need a professional backend application for your existing web frontend? Use JVx and your problems are solved. You get all advantages of JavaEE in your JVx application.

JVx EE is licensed under Apache License 2.0.

Do you have any questions? Let me know.