SAP_WAPI_READ_CONTAINER - XML

[Florin Wach]

Hi,

if you use the XML container, you can access the field Z_STRUCTURE directly and move it into the full structure without worrying about the internal storage (which is how you've described below - valid for those workflow definitions created prior to ECC 6.00 / otherwise stored in database as a persistent XML stream - valid for definitions created from ECC 6.00 on).

To create a container from XML stream use (the variable here is "event_container", in the case of the BAPI..READ.. the IFS_XML_CONTAINER should be it. You'll need to calculate string-length and use that as XML_Size.

...
code snippet

   DATA: lo_container         TYPE REF TO if_swf_cnt_container.
   TRY.
      lo_container = cl_swf_cnt_container=>create_from_XML( XML_Table = event_container
                                                         XML_Rendered_Size = XML_Size ).
      CATCH CX_ROOT.
         "On any problems, we leave the simple container blank
   ENDTRY.


...
and another code snipped to read a (structured) element:

   DATA: ls_initiator       TYPE SWHACTOR.
   TRY.
      CALL METHOD lo_container->if_swf_ifs_parameter_container~get
                     EXPORTING
                        name    = 'ACTUALAGENT'
                     IMPORTING
                        value   = ls_initiator.
      CATCH CX_SWF_CNT_ELEM_NOT_FOUND.
         "Can be ignored, as the event just doesn't has this as a parameter
      CATCH CX_SWF_CNT_CONTAINER.
         "Other exceptions are ignored, as well
   ENDTRY.



Best wishes,
Florin

-------- Original-Nachricht --------
> Datum: Mon, 10 May 2010 10:55:55 +1000
> Von: Nigel Thurgood <Nigel.Thurgood at sanitarium.com.au>
> An: "sap-wug at mit.edu" <sap-wug at mit.edu>
> Betreff: SAP_WAPI_READ_CONTAINER - XML

> Hi,
> 
> Recently upgraded from 4.7 to ECC 6.
> 
> In 4.7, the above function would return the first 256 characters of a
> structure as a single string, e.g.:
> 
> Field                                      Value
> Z_STRUCTURE                   Value_1               Value_2              
> Value_3               $etc.
> 
> In ECC 6, the structure is now broken down as follows:
> 
> Field                                      Value
> Z_STRUCTURE                   Value_1
> Z_STRUCTURE                   Value_2
> Z_STRUCTURE                   Value_3
> Z_STRUCTURE                   &etc.
> 
> The latter would be better as the whole structure is available, not just
> the first 255 characters - however the structure field names (e.g.
> Z_STRUCTURE-MATNR) are not shown, only the structure name.
> 
> I would think that the XML container parameter of SAP_WAPI_READ_CONTAINER
> would give me what I'm looking for?
> 
> Can anyone point me towards an example of converting
> SAP_WAPI_READ_CONTAINER's IFS_XML_CONTAINER and IFS_XML_CONTAINER_SCHEMA into something like
> value pairs?
> 
> Cheers.
> 
> Nigel E Thurgood
> 
> 
> 
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