topic Exporting and returning value question in Application Development and Automation Discussions

Exporting and returning value question

Former Member — Sat, 13 Sep 2008 05:40:02 GMT

What is different between exporting and returning value in method of a class. if created an object inside the method and exporting it, it means I have a reference to that object inside program. If I use returning value, it means I have a copy of object created inside the method, but the object inside method is destroyed after it ends. Do I understand correctly? if so what do u prefer exporting or returning value? thanks!

Re: Exporting and returning value question

narin_nandivada3 — Sat, 13 Sep 2008 10:26:47 GMT

This message was moderated.

Re: Exporting and returning value question

uwe_schieferstein — Sun, 14 Sep 2008 09:30:51 GMT

Hello Anthony

The major difference is that you can have multiple EXPORTING parameters yet only a single RETURNING parameter. In addition, if you have a RETURNING parameter you cannot have EXPORTING parameters simultaneously.

Defining methods with a single RETURNING parameter is more Java-like than having multiple EXPORTING parameters.

Whenever possible and sensible I prefer RETURNING parameters over EXPORTING parameters because they allow to use the function method call, e.g.:

go_msglist = cf_reca_messagelist_create( ).

Regards

Uwe

Re: Exporting and returning value question

Former Member — Mon, 15 Sep 2008 19:25:44 GMT

Thanks, you make it clear.