how to process leave request container in abap class method?

Hi,

I have copied standard leave workflow and it is triggering from ess.I have an activity and inside that i have copied some code in the method.iam stuck what i need to achive i need to get the value inside the req container and process and put value in another container.my method looks like

DATA: request TYPE REF TO if_pt_req_request,

event TYPE tim_req_xfer_event VALUE cl_pt_req_const=>c_reqtrans_approve.

CALL METHOD cl_pt_req_badi=>get_request

EXPORTING

im_req_id = me->req_id

IMPORTING

ex_request = request.

my workflow container looks like

I need to get name and value...

I am new to oops development.Pls help experts

Regards