For making a client method (Model Method)

1- Open Application Module.
2- Goto Java link then mark on "Generate Application Module Class".
3- In the generated class (ApplicationModuleImpl) write any public method you want.
4- Open Application module then go to java link then go to client interface and shuttle your method.
Hint: if you want to write your method in other class not in (Applicationmoduleimpl class) write your own class then make Applicationmoduleimpl class extends your own class.