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Exception Handling in RFC

This example demonstrates exception handling in RFC.

Other versions: 7.31 | 7.40 | 7.54

Source Code

    DATA demo_exception  TYPE REF TO cx_demo_exception.
    DATA msg TYPE c LENGTH 255.

    DATA(out) = cl_demo_output=>new( ).

    "Classical exception handling
    CALL FUNCTION 'DEMO_RFM_CLASSIC_EXCEPTION'
      DESTINATION 'NONE'
      EXCEPTIONS
        system_failure        = 1  MESSAGE msg
        communication_failure = 2  MESSAGE msg
        OTHERS                = 3.
    CASE sy-subrc.
      WHEN 1.
        out->write( |EXCEPTION SYSTEM_FAILURE `| && msg ).
      WHEN 2.
        out->write( |EXCEPTION COMMUNICATION_FAILURE `| && msg ).
      WHEN 3.
        out->write( |EXCEPTION OTHERS| ).
    ENDCASE.

    out->display( ).

Description

The DEMO_RFM_CLASSIC_EXCEPTION function module triggers the non-class-based exception CLASSIC_EXCEPTION.

When DEMO_RFM_CLASSIC_EXCEPTION is called, EXCEPTIONS is specified and values for sy-subrc are assigned to the possible classic exceptions. If none of the predefined RFC interface exceptions occur, sy-subrc is set to 3.