Calls Without References to the Logical System
HR forwards payroll results to Accounting. Here the appropriate documents are posted. The HR document does not have a reference to the document created in Accounting.
The method to be called is named, for example, ACDoc.Display. ACDoc.Display does not have any filter objects. The field HRKPF-DOCNR contains the ID of the HR document.
As the logical system cannot be identified here, the logical target system has to be determined from the distribution model.
The source code below shows how the Accounting document display is called from the HR document display:
...
DATA:
HEAD LIKE HRKPF,
SERVER LIKE BDBAPIDEST,
RETURN LIKE BAPIRET2,
MSG_TXT(80) TYPE C,
FILTER_VALUES LIKE BDI_FOBJ OCCURS 0 WITH HEADER LINE.
...
* get logical system and RFC destination for remote method call
* no filter objects are used
REFRESH FILTER_VALUES.
* get server system from ALE distribution model
CALL FUNCTION 'ALE_BAPI_GET_UNIQUE_RECEIVER'
EXPORTING
OBJECT = 'ACDOC'
METHOD = 'DISPLAY'
IMPORTING
RECEIVER = SERVER
TABLES
FILTEROBJECTS_VALUES = FILTER_VALUES.
EXCEPTIONS
ERROR_IN_FILTEROBJECTS = 1
ERROR_IN_ALE_CUSTOMIZING = 2
NOT_UNIQUE_RECEIVER = 3
NO_RFC_DESTINATION_MAINTAINED = 4
OTHERS = 5.
IF SY-SUBRC <> 0.
IF SY-SUBRC = 4.
* application specific message saying document cannot be displayed
...
ELSE.
* hard error
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
* call display function.
If SERVER_DEST is initial, it's a local call.CALL FUNCTION 'BAPI_ACDOC_DISPLAY'
DESTINATION SERVER-RFCDEST
EXPORTING
DOCUMENT_ID = HEAD-DOCNR
IMPORTING
RETURN = RETURN
EXCEPTIONS
COMMUNICATION_FAILURE = 1 MESSAGE MSG_TXT
SYSTEM_FAILURE = 2 MESSAGE MSG_TXT.
IF SY-SUBRC <> 0.
* handle remote exceptions
MESSAGE E777(B1) WITH
'HRDoc.Display' HEADER-AWSYS MSG_TXT(50) MSG_TXT+50(30).
ELSEIF NOT RETURN-TYPE IS INITIAL.
* handle return parameter
...
ENDIF.
This example does not use filter objects. If filter objects exist for the object method to be called, the distribution model must be accordingly interrogated.