topic Re: abap objects qustion in Application Development and Automation Discussions

abap objects qustion

Former Member — Wed, 09 Jul 2008 19:48:55 GMT

Hi,

i learning abap objects and i wont to sample for using private and protected and public definitions .

until now i use Fm and for that i have function group

in top i declare all the global variables and i use it for all the fm in the group what is change.

Regards

Re: abap objects qustion

amit_khare — Wed, 09 Jul 2008 23:24:45 GMT

Check standard reports in SAP with names starting with BCALV_* they will provide you ample amount of information for learning.

Re: abap objects qustion

uwe_schieferstein — Thu, 10 Jul 2008 03:44:07 GMT

Hello Ricardo

For an instance of a class all attributes, irrespective of whether they are public, protected or private, are global.

In general I would say that most of the class attributes (>70 %) should be either private or protected.

When do I use public attributes?

1) I want to make certain properties of the instance (e.g. a key like MATNR or details like MARA for a material related class) available for the outside. However, these public attributes should be defined as read-only because it makes absolutely no sense that you can change the key of an instance (like MATNR) from outside.

2) Recently I learned about a SAP standard interface (BAdI) for a user-exit where the attribute for an ALV fieldcatalog itab was public and changeable. Here the intention is to give the user of this BAdI an easy way to manipulate the ALV fieldcatalog.

Regards

Uwe

Re: abap objects qustion

Former Member — Thu, 10 Jul 2008 08:47:27 GMT

Hi Uwe Schieferstein

thanks ,

maybe u can give me simple example it help me a lot.

Regards

Re: abap objects qustion

Former Member — Thu, 10 Jul 2008 09:46:34 GMT

Hi,

refer to these links

abap oops material

1) http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf -- Page no: 1291

2) http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt

3) http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf

4) http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf

5) http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt

6) http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf

7) http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt

😎 http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8

1) http://www.erpgenie.com/sap/abap/OO/index.htm

2) http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm

Re: abap objects qustion

Former Member — Thu, 10 Jul 2008 10:55:35 GMT

Hiii!

Check out this link. This link will guide you on ABAP OBJECTS

http://www.sap-press.de/katalog/buecher/htmlleseproben/gp/htmlprobID-28?GalileoSession=22448306A3l7UG82GU8#level3~3

Regards

Abhijeet Kulshreshtha

Re: abap objects qustion

former_member69765 — Thu, 10 Jul 2008 14:24:37 GMT

Refer to some tutorials online..

Check out [www.abaplearning.com|www.abaplearning.com]

Re: abap objects qustion

marcelo_ramos1 — Thu, 10 Jul 2008 15:13:04 GMT

Hi Ricardo,

The Uwe's explanation is correct, you can also take a loo at [ABAP Objects Wiki page|https://wiki.sdn.sap.com/wiki/x/o5k] and [ABAP Objects Examples|https://wiki.sdn.sap.com/wiki/x/Aq] where you can see some examples includind [Visibility Definitions|https://wiki.sdn.sap.com/wiki/x/D60] and [Components Definitions|https://wiki.sdn.sap.com/wiki/x/OKg].

I hope this examples help you !

'Boa Sorte !'

Greetings,

Marcelo Ramos

Re: abap objects qustion

Former Member — Mon, 14 Jul 2008 06:41:38 GMT

Hey!

Thanks alot Ricardo.