Object Oriented ABAP

Dialog processing after COMMIT WORK statement
How to perform dialog processing after commit work execution?
In general, we may come across the scenario where, some dialog processing needs to be
done after transaction “commit work”. It‟s explained here by considering a scenario.
After filling all necessary details in the delivery document, user clicks on “save” button to
create a delivery document. If any dialog processing (like pop-up to fill some details)
required upon successful execution of COMMIT WORK statement. In this case, we can
approach below method.
Let me explain this by creating a custom class.
Create an event handler method in the custom class ZTEST_HANDLER for the event
TRANSACTION_FINISHED of the standard class CL_SYSTEM_TRANSACTION_STATE.
Standard class: CL_SYSTEM_TRANSACTION_STATE
Event name : TRANSACTION_FINISHED
Note: This event gets triggered as soon as the COMMIT WORK gets executed.
My custom class name : ZTEST_HANDLER
My event handler method: CALL_DIALOG (Event TRANSACTION_FINISHED of standard class
CL_SYSTEM_TRANSACTION_STATE attached to this custom method)
1) Event handler method CALL_DIALOG
2) Event handler method: CALL_DIALOG detailed view