topic Re: Calling methods from the Business Object BUS2032 in Application Development and Automation Discussions

Calling methods from the Business Object BUS2032

Former Member — Thu, 13 Sep 2007 17:31:14 GMT

Hi all,

Is it possible to call methods from the Business Object BUS2032.

If so, how can it be done??

Regards,

Re: Calling methods from the Business Object BUS2032

uwe_schieferstein — Thu, 13 Sep 2007 18:52:54 GMT

Hello Marvin

"Methods" of business objects are no class methods in technical terms. They are just semantic definitions.

If you call transaction SWO1 and display your business "object" (which is no object in the OO-sense) BUS2032 then you see "method" SalesOrder.ChangeFromData.

Double-click on the method name and switch to the tabstrip ABAP. There you see that this "method" is implemented by the BAPI BAPI_SALESORDER_CHANGE.

Regards

Uwe

Re: Calling methods from the Business Object BUS2032

uwe_schieferstein — Thu, 13 Sep 2007 18:57:18 GMT

Hello Marvin

If you look at BUS2012 (Purchase order) its methods are implemented by BAPI_PO_... BAPIs.

The corresponding classes (available >= 6.20) are CL_PO_HEADER_HANDLE_MM (Header) and CL_PO_ITEM_HANDLE_MM (Item).

Regards

Uwe

Re: Calling methods from the Business Object BUS2032

GrahamRobbo — Thu, 13 Sep 2007 23:39:30 GMT

Hi Marv,

you sure can. Here is an extract from the SAP Help. I found it at http://help.sap.com/saphelp_46c/helpdata/en/c5/e4ad71453d11d189430000e829fbbd/frameset.htm

Programmed Method Call

Call (fictitious) method Print of object type VBAK (sales document). The method receives the parameters Paperformat and Printertype as input.

* Call method Print of object type VBAK
***************************************************

* Data declarations
***************************************************
DATA: VBAK_REF TYPE SWC_OBJECT.
SWC_CONTAINER CONTAINER.
* Create object reference to sales document
*************************************************
SWC_CREATE_OBJECT VBAK_REF 'VBAK' <KeySalesDoc>
* Fill input parameters
***************************************************
SWC_CREATE_CONTAINER CONTAINER.
SWC_SET_ELEMENT CONTAINER 'Paperformat' 'A4'.
SWC_SET_ELEMENT CONTAINER 'Printertype' 'Lineprinter'.

* Call Print method
***************************************************
SWC_CALL_METHOD VBAK_REF 'Print' CONTAINER.
* Error handling
IF SY-SUBRC NE 0.
   ..... 
ENDIF.

Cheers

Graham

Re: Calling methods from the Business Object BUS2032

Former Member — Mon, 17 Sep 2007 12:55:18 GMT

Hi there --this is of course technically correct -- however I would where possible try and avoid the use of BO's. If you can find (or create) a genuine class then you can then use "proper" OO.

The concept of a BO was to allow for some limited type of "pseudo object" coding before ABAP supported a relatively powerful and full OO set.

Cheers

Jimbo