topic ABAP OO question in Application Development and Automation Discussions

ABAP OO question

Former Member — Thu, 15 May 2008 05:37:02 GMT

Hi,

Can someone please explain me the concept withe the below behavior ?

System : SAPCRM 20007.

Class : CL_BT311H_C_CSROVERVIEW_IMPL

Super Class : CL_BT311H_C_CSROVERVIEW.(A)

Super class of A : CL_CRM_UIU_BT_H_OVW_VIEWSET (B)

Method Do_Handle_event is defined in the Super class.

Please look at method call EH_ONCREATE_CLOSED(line 64) in the above do_handle_event method. This method is not defined in the super class (A) but is defined in Sper class B. In this case, wouldn't we need to use keyword 'SUPER' ?

When I double click on EH_ONCREATE_CLOSED method it takes me to the Super class B. I would expect the same behavior when I debuf, i.e control must go to the definition of the method in super class B. But in debug mode EH_ONCREATE_CLOSED takes us to the definition in implementation class ( CL_BT311H_C_CSROVERVIEW_IMPL) ( There is a method with same name EH_ONCREATE_CLOSED in the impl class. Why this behavior ?

Re: ABAP OO question

matt — Thu, 15 May 2008 08:10:33 GMT

Not all of us have access to CRM. Can you construct or find an example that's part of a package in BC?

If you have an object defined with ref to CL_BT311H_C_CSROVERVIEW_IMPL and call a method. If that method isn't defined in the class, but is defined (protected or public) in a superclass, then the superclass method will be called. You only use SUPER when you've defined the method in the subclass, but want to run the superclass implementation.

Re:the debugger. It just works like that. I don't see what the problem is.

matt

Re: ABAP OO question

Former Member — Thu, 15 May 2008 14:34:58 GMT

Thanks for the answer Matt. I'm still not clear with the behavior during debug. Let me see if I can explain it more clearly here..

I have three classes: 1) IMPL CLASS 2) SUPER CLASS A (Super class of IMPL) 3) SUPER CLASS B (SUPER CLASS OF A)

1) Method : EH_ONCREATE_CLOSED called in Superclass A.

2) Super class A does not have definition for EH_ONCREATE_CLOSED method. Super class B has this method defined(protected method). When I double click on this method it takes me to the method definition in the super class.

(so far, I understand the behavior)

3) The same method EH_ONCREATE_CLOSED (again protected) is also defined in IMPL Class. I have a break point at the statement that triggers the method call in super class A and I do F5. It takes me to EH_ONCREATE_CLOSED method in IMPL Class. The question I have here is why it doesn't take me to the definition of the method in super class B ? Because that is where it takes me when I do double click on the method call.

Thanks for your time and appreciate your help.

Sreesanth

Re: ABAP OO question

Former Member — Thu, 15 May 2008 14:44:51 GMT

Hi Matt,

Package BC does not have any classes in it.. I was not sure what you wanted me to check in this package. Can you please let me know what to look for here to get better understanding of the concept ?

Thanks

Sreesanth