Event binding (Programmed Binding (Container IF))

Question

Hello WF gurus !
I am currenlty trying to trace and debug a WF run and I am having difficulty to understand the binding mechanism of a "Wait for event" step in my workflow.  Here is the story:  Through its execution run, the WF encountered two "Wait for event" step based on the same BOR-Event (ex: BOR = ZISPROCES1 - Event = ABANDON ).  The first occurence is directly is the WF (we will call this WF: WF1) and the 2nd occurence is in a sub-workflow (WF2).  The 2 work items for those 2 "wait for events" steps were created in March 2010, obviously waiting for the same event to occur.  The ABANDON event occured in June 2010 trigerring the execution of both work items waiting for this event.
When I look at the binding configuration of these "Wait for event" step (Popup screen: Display Binding From Event), I see the following:
- Under "Workflow" column: Programmed Binding (Container IF)
- Under "Event 'ABANDON' column: ZCONTAINER_BINDING_MAIL_ISIS
When I click on the "Programmed Binding (Container IF)" buton, i get a popup screen titled: "Binding Instruction Display" with the following config:
> Binding Instruction: Container --> Container: Programmed Binding (Container IF)
> Exit Function Module: ZCONTAINER_BINDING_MAIL_ISIS
When I look ath the FM ZCONTAINER_BINDING_MAIL_ISIS, I see that it uses three (3) import parameters:
DATAFLOW_EVENT   TYPE SWA_DAFLOW
SOURCE_CONTAINER TYPE SWFPARACNT
TARGET_CONTAINER TYPE SWFPARACNT
Assumption: Currently, from what I understand, the "Wait for event" step adds an object called "DELETOR" in the container of the workflow it belongs meaning that when the event will occur, the work item associated to these "Wait for event" steps will process and I should expect to have an object called "DELETOR" in the conainer of WF1 and WF2.
The problem: When I look at my WF log using TCode SWI6, and I look at the container data for each step following the "Wait for event" step (SEND MAIL step), I notice that the WF1's "Send Mail" step container contains an instance of the object called "DELETOR" with data in it.  WF2's "Send MaiL" step also contains an object called "DELETOR" but with mention <No Instance> and I don't understand why...
QUESTIONS:
- Where can I see what are the values passed to the FM import parameters ?
- Does anyone have an idea why in WF1's container, object "DELETOR" is instanciated and holds values and in WF2's container, there is an object "DELETOR" but is not instanciated.
Edited by: PAQUEJO on Dec 2, 2010 10:04 PM

Answer 1

Here is the code of FM ZCONTAINER_BINDING_MAIL_ISIS
FUNCTION zcontainer_binding_mail_isis.
*"*"Interface locale :
*"  IMPORTING
*"     VALUE(DATAFLOW_EVENT) TYPE  SWA_DAFLOW
*"     VALUE(SOURCE_CONTAINER) TYPE  SWFPARACNT
*"     VALUE(TARGET_CONTAINER) TYPE  SWFPARACNT
*"  EXCEPTIONS
*"      BINDING_ERROR
  INCLUDE <cntn01>.     " macros for accessing BOR objects and container
  INCLUDE <swfcntn01>.  " macros for accessing the new ABAP-OO-container
  TYPE-POOLS: swfbn.
  DATA: my_integer    TYPE        i.
  DATA: lcx_container TYPE REF TO cx_swf_cnt_container,
        l_msg         TYPE        swf_t100ms.
  DATA : l_creator(14).
  DATA : lo_usr01 TYPE swf_bor_object,
         lo_zis   type swf_bor_object.
  IF dataflow_event = swfbn_dataflow_export. " 'E'
**** 'EXPORT' point of time. This could be:
**** - workflow container to workitem container (before method call)
**** - event container to workflow container (event receive or wf start)
**** - workflow container to role container (before role resolution)
**** always move data from source to target container
    TRY.
        CALL METHOD source_container->get
          EXPORTING
            name  = '_EVT_CREATOR'                          "#EC NOTEXT
          IMPORTING
            value = l_creator.
*        ADD 17 TO my_integer.
        swf_create_object lo_usr01 'USR01' l_creator+2.
        CALL METHOD target_container->set
          EXPORTING
            name  = 'DELETOR'                               "#EC NOTEXT
            value = lo_usr01.
      CATCH cx_swf_cnt_container INTO lcx_container.
        l_msg = lcx_container->t100_msg.
        MESSAGE ID l_msg-msgid TYPE l_msg-msgty NUMBER l_msg-msgno
                WITH l_msg-msgv1 l_msg-msgv2 l_msg-msgv3 l_msg-msgv4
          RAISING binding_error.
    ENDTRY.
  ELSEIF dataflow_event = swfbn_dataflow_import. " 'I'
**** 'IMPORT' point of time. This could be:
**** - from workitem container to workflow container (after method exec)
**** - from workflow container to event container to (raise event)
**** always move data from source to target container
    TRY.
        CALL METHOD source_container->get
          EXPORTING
            name  = '_EVT_CREATOR'                          "#EC NOTEXT
          IMPORTING
            value = l_creator.
*        ADD 17 TO my_integer.
        swf_create_object lo_usr01 'USR01' l_creator+2.
        CALL METHOD target_container->set
          EXPORTING
            name  = 'DELETOR'                               "#EC NOTEXT
            value = lo_usr01.
        CALL METHOD source_container->get
          EXPORTING
            name  = '_EVT_OBJECT'                          "#EC NOTEXT
          IMPORTING
            value = lo_zis.
        CALL METHOD target_container->set
          EXPORTING
            name  = '_WI_OBJECT_ID'                               "#EC NOTEXT
            value = lo_zis.
      CATCH cx_swf_cnt_container INTO lcx_container.
        l_msg = lcx_container->t100_msg.
        MESSAGE ID l_msg-msgid TYPE l_msg-msgty NUMBER l_msg-msgno
                WITH l_msg-msgv1 l_msg-msgv2 l_msg-msgv3 l_msg-msgv4
          RAISING binding_error.
    ENDTRY.
  ENDIF.
ENDFUNCTION.