topic Re: Regarding OOABAP in Application Development and Automation Discussions

Regarding OOABAP

Former Member — Sun, 29 Nov 2020 18:12:28 GMT

What is Factory Design Pattern ? What is the real time example of factory design pattern in terms of SAP?

Re: Regarding OOABAP

MateuszAdamus — Sun, 29 Nov 2020 19:25:45 GMT

Hi varun1995

Here's about the pattern: https://en.wikipedia.org/wiki/Factory_method_pattern

Here's an example for ABAP: https://blogs.sap.com/2012/02/20/factory-pattern-in-abap-oo/

The example is complex, with configuration based on DB table, but it can also be as simple as

METHOD create_instance.
  IF iv_value = 'A'.
    CREATE OBJECT ro_instance TYPE lcl_a.
  ELSE.
    CREATE OBJECT ro_instance TYPE lcl_default.
  ENDIF.
ENDMETHOD.

Kind regards,

Mateusz

Re: Regarding OOABAP

former_member702682 — Mon, 30 Nov 2020 03:13:06 GMT

Hi varun1995,

https://www.abaptutorial.com/abap-factory-method-design-pattern/

Thanks & Regards

Akarsh

Re: Regarding OOABAP

former_member1716 — Mon, 30 Nov 2020 07:15:38 GMT

Hello varun1995,

The factory method is most used for creating objects without any leverage to its instantiation technique. Interfaces and encapsulation concepts of OOABAP plays a vital role here.

You can follow the blog below which discusses the method in detail.

https://blogs.sap.com/2012/02/20/factory-pattern-in-abap-oo/#:~:text=The%20factory%2Dpattern%20is%20one,concrete%20implementation%20to%20the%20users.

Regards!