Exit DataSlice in IP

Hello Everybody,

I wish to implement an exit dataslice in IP, but I am having some basic problem.

I have read SAP docu: http://help.sap.com/saphelp_nw70/helpdata/en/43/1c3d3f31b70701e10000000a422035/content.htm

It states:

1. "The exit class must implement the interface 'IF_RSPLS_DS_EXIT'."

2. "We recommend that the customer class inherit from the template class

'CL_RSPLS_DS_EXIT_BASE'."

3. "Re-implement the method u2018IS_PROTECTEDu2019."

Hence, I then implemented ZCL_RSPLS_DS_EXIT_BASE with CL_RSPLS_DS_EXIT_BASE as super class (see above 2.). This looks fine BUT the problem is that IF_RSPLS_DS_METHODS_{IS_PROTECTED can not be changed then (message: Method IF_RSPLS_DS_METHODS}IS_PROTECTED (see above 3.) is implemented in class CL_RSPLS_DS_EXIT_BASE).

I now deleted class ZCL_RSPLS_DS_EXIT_BASE and started all over again. This time NOT defining ZCL_RSPLS_DS_EXIT_BASE with CL_RSPLS_DS_EXIT_BASE as super class. Instead I defined the interface IF_RSPLS_DS_METHODS. Now I could modify IF_RSPLS_DS_METHODS_{IS_PROTECTED (see above 1.), BUT when I then debug the application I notice that the method IF_RSPLS_DS_METHODS}IS_PROTECTED is never called.

Also, in IF_RSPLS_DS_EXIT_{GET_INSTANCE I have to implement a call to CL_RSPLS_DS_EXIT_BASE=>IF_RSPLS_DS_EXIT}GET_INSTANCE

What am I doing wrong? What is the right way to do this?

Thanks for any help.

Martin