You use the application programming interface of Rational® Programming Patterns to access the Pacbase entities in Java™.
You create your own micropatterns in dedicated Eclipse plug-ins and then write their contents directly in Java.
To write this Java code, you will probably have to access the model instances. With the application programming interface named Model Access Facilities, you can access the instances of your local workspace and retrieve their properties. For a Data Element, you can retrieve, for example, its formats, usage, parent Data Element.
To deploy these elements, you need to create an update site and install it on your development workstations.