CA Gen allows applications to access the currently opened model through a mechanism that is known as a plug-in. The application should register itself in the Windows registry, and from there the CA Gen toolset knows how to call it. Toolset adds a menu item to the CA Gen “Plug-in” menu. The developer starts plugin from the toolset after Toolset opens model for processing.
However, there is a problem when you are willing to develop something in Java language. The Toolset Automation Wrapper is a package of Java classes doing just that. The Toolset Automation Wrapper does not cover all functionality offered by the Toolset Automation.