Webdynpro Callableobject - RFC model

Hi,

I am creating a webdynpro component, which will be available as callable object in GP.this involved interface and component controllers.

In our scenario we use a rfc model.But, we are stuck up in the java conding for Interface controller and Component controller(For methods getDescriptuion and execute).

Can anyone help me out in this java coding.

Any helpdocument or links will be of great help.

Thanks,

Sharath