ABAP Exception class to use Messages from T100

Exception class to use Messages from T100

By Naimesh Patel | April 2, 2013 | Exceptions | 59,160 | 13

Exception class can be defined using to use static Text as well as the messages from the Message repository maintained using transaction SE91. In this article, lets see how to use the message from Message repository T100.

Define Exception Class using IF_T100_MESSAGE

To achieve and use the messages from the message repository, you need to include the interface IF_T100_MESSAGE in the exception class. This interface allows you to declare and pass the message parameters when raising the exception.

As soon as you add the interface, the parameters of the method CONSTRUCTOR would be adjusted. The TEXTID field is not more referring to the field TEXTID. It would now refer to the type of the field IF_T100_MESSAGE=>T100KEY. So, when you raise an exception, you can simply populate the fields of the key and they would be propagated back to the place where exception would be caught.

Interface IF_T100_MESSAGE has attribute T100KEY which would be available at time of catching the exception to retrieve the passed message id, message number and message parameters when exception was raised.

Exception ID in the Exception Class

For each Exception ID, in the Exception class, you can assign message class, message number and 4 attributes. To be able to assign one these 4 attributes, you would need to create a public attribute in the exception class. Once the attribute is available, you can select that instance attribute in the exception ID message text. E.g. As shown in the image, I have created an attribute IV_FIELD1 which as an attribute in the class which I have assigned to the attribute when I set the message text for the exception ID.

This text ID would be created as a Constant in the Exception Class as well.

Exception ID Constant

 
  constants:
    begin of ZCX_MSG_T100,
      msgid type symsgid value '00',
      msgno type symsgno value '398',
      attr1 type scx_attrname value 'IV_FIELD1',
      attr2 type scx_attrname value ",
      attr3 type scx_attrname value ",
      attr4 type scx_attrname value ",
    end of ZCX_MSG_T100 .

The added public attribute, which you have used is also available as one of the parameter in the CONSTRUCTOR. This would let you assign a specific value to that attribute while raising the exception. Thus you can propagate that value
back the catcher of the exception.

Complete Public section of the Exception Class looks like this:

Exception Class Public section

 
class ZCX_MSG_T100 definition
  public
  inheriting from CX_NO_CHECK
  final
  create public .
 
*"* public components of class ZCX_MSG_T100
*"* do not include other source files here!!!
public section.
 
  interfaces IF_T100_MESSAGE .
 
  constants:
    begin of ZCX_MSG_T100,
      msgid type symsgid value '00',
      msgno type symsgno value '398',
      attr1 type scx_attrname value 'IV_FIELD1',
      attr2 type scx_attrname value ",
      attr3 type scx_attrname value ",
      attr4 type scx_attrname value ",
    end of ZCX_MSG_T100 .
  data IV_FIELD1 type CHAR10 .
 
  methods CONSTRUCTOR
    importing
      !TEXTID like IF_T100_MESSAGE=>T100KEY optional
      !PREVIOUS like PREVIOUS optional
      !IV_FIELD1 type CHAR10 optional .

Raising & Catching Exception

While raising the exception, you can provide all the parameters which are available in the CONSTRUCTOR method. This would than set proper attributes, which would be available at time of catching the exception. When proper parameters are set, it would provide proper information.

Demo

A small Demo to see it in action:

Program to Raise and Catch exception

 
*&---------------------------------------------------------------------*
*& Purpose - Object Oriented Implementation for a Report
*& Author  - Naimesh Patel
*& URL     - http://zevolving.com/?p=2040
*&---------------------------------------------------------------------*
REPORT ZTEST_NP_T100_EXCEPTION.
*
DATA: lo_exc TYPE REF TO zcx_msg_t100.
DATA: ls_t100_key TYPE scx_t100key.
*
START-OF-SELECTION.
* no message id, would take default ID
* No additional parameter, message would be empty
  TRY.
      RAISE EXCEPTION TYPE zcx_msg_t100.
    CATCH zcx_msg_t100 INTO lo_exc.
      MESSAGE lo_exc TYPE 'I'.
  ENDTRY.
*
* Specific message ID, with parameter set
  TRY.
      RAISE EXCEPTION TYPE zcx_msg_t100
        EXPORTING
          textid    = zcx_msg_t100=>ZCX_MSG_T100
          IV_FIELD1 = 'Value1'.
    CATCH zcx_msg_t100 INTO lo_exc.
      MESSAGE lo_exc TYPE 'I'.
  ENDTRY.
*
* Raising with a different message
  TRY.
      ls_t100_key-msgid = '00'.
      ls_t100_key-msgno = '443'.
      RAISE EXCEPTION TYPE zcx_msg_t100
        EXPORTING
          textid = ls_t100_key.
    CATCH zcx_msg_t100 INTO lo_exc.
      MESSAGE lo_exc TYPE 'I'.
 
* getting all the attributes of the message
* like ID, class, attr1 etc
       MESSAGE ID lo_exc->IF_T100_MESSAGE~T100KEY-msgid
               TYPE 'I'
               NUMBER lo_exc->IF_T100_MESSAGE~T100KEY-msgno
               WITH   lo_exc->IF_T100_MESSAGE~T100KEY-ATTR1.
  ENDTRY.

Multiple Exception IDs – Word of Caution

You would think this is great way to reduce the number of Exception Classes by creating many different exception IDs. When you have many exception IDs, they would need many different attributes. These attributes than would be added to CONSTRUCTOR. If you keep on adding various different attributes which are used in your Exception IDs, your Constructor method signature would grow. Over the time, it would be difficult for Other developers to know which fields are only needed when correctly raising the exception. Thus exception IDs should be logically grouped into Exception Classes.

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Naimesh Patel{274 articles}

I'm SAP ABAP Consultant for more than a decade. I like to experiment with ABAP especially OO. I have been SDN Top Contributor.

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13 Comments

Clemens Li

# April 3rd, 2013 at 4:34 am

Hi friends,

I appreciate the many blogs on proper obect oriented ABAP programming. For most things regarding messages, the best thing to do is:

Where ever an error is detected, a MESSAGE using addtion INTO should be present in the code. In the class and/or interface used or in the actual method, we should have an attribute, say lv_message TYPE string.

Then
TRY
something
CATCH exception
MESSAGE TYPE ‘E’ ID xx NUMBER nnn WITH aaa bbb ccc ddd INTO lv_message.
RAISE EXCEPTION TYPE Zxxx…

In the Exception constructor, make use of system variables SY-MSGID, SY-MSGTY, SY-MSGNO, SY-MSGV1 .. SY-MSGV4.

Whenever you write a MESSAGE .. INTO, you have it in a where-used-list. So you can find the code where the error occurred quickly. Did you notice the numerous SAP code lines where they to
IF 1 = 2. Message … ENDIF. Since we have MESSAGE INTO, we just don’t need this. And in debugger, we can check the full message in variable lv_message – no need to check it in message class.

Conclusion:
– Never use message class and number values except in MESSAGE … INTO.
– Make use of system variables as they are filled by MESSAGE … INTO.

Best regards

Clemens
Nathan Jones

# April 3rd, 2013 at 6:28 am

I have to say I’m in two minds about this.
One the one hand I can see it’s usage but on the other I’m not convinced this is the correct way to go with exception classes.
Exception classes are not just simply messages from the repository they are are an excapsulaton of a particular type of error.
So for example you could have an exception class with is just for lock objects – so if a table lock fails you have that exception class for that. Or you might have an exception class which deals with incorrect paramters only.
The exception class allows you to do 2 things
1. report an error
2. determine the type of error you are encountering so that you can take appropriate action without looking at the specifics of the error.
I hope I haven’t missed the point of the article.
Nath
Naimesh Patel

# April 3rd, 2013 at 8:56 am

Hello Clemens,

Agree on the fact that having message as constant or part of variable make is impossible to include part of where used list without having to do additional work like putting check 1 = 2 (where used proof).

Regarding getting the message in String makes sense as it hides the Message implementation from the caller and definitely makes debugging easier. But, it makes a bit difficult when you need to save this exception for other purpose. E.g. IDOC status reporting – When we do INTO LV_STRING we are lose the actual message number/id/variables if we don’t use SY-MSG* fields to message variables.

I have been using INTO V_MSG approach but haven’t yet tried with Exception class. I would try soon and see if I find any drawback of using that technique.

Nice to hear from you after long time!

Thanks,
Naimesh Patel
Naimesh Patel

# April 3rd, 2013 at 9:03 am

Hello Nathan,

Thanks for your comment.

The job for exception class is to let the caller know if something happens and make sure the rest of the flow is intact. When using the Static Text from the OTR for Exception ID, you don’t have option to send additional information as part of the message. No doubt, you can have attributes which are would be available in CONSTRUCTOR to help you if you need to send out additional Info. But that would add more “thinking” on caller to understand what to do with these attributes.

When using the message from T100 approach, you can provide more information as part of the Message itself. The caller has to just decide if it wants to give that message as is or want to get additional info.

Regarding the Grouping – When you have complex design, you can try to create various message IDs to cover similar error situation. Extending your example of lock object, you can have an additional message ID of why lock occurred with more info.

Regards,
Naimesh Patel
Clemens Li

# April 3rd, 2013 at 9:49 am

Hello Naimesh,

thank you for understanding my underlying thoughts.

In my programs I use application log functionality. SAP provides a really powerful framework for storing messages. If you want to save messages, you must use an existing log object and subobject or create it using SLG0.

But as long as you don’t need it in the database, you can still use all functions for storing and retrieving messages.

I created a minimal class that creates an application log using FUNCTION ‘BAL_LOG_CREATE’. This function returns a handle that can be used for storing, retrieving, displaying or saving messages.

The usual program flow is
– create application log object, say GO_LOG
– MESSAGE … INTO …
– method call GO_LOG->add_sy_msg( ).
method add_sy_msg makes us of the system message variables:
METHOD add_sy_msg.
DATA:
ls_msg TYPE bal_s_msg.
ls_msg-msgty = sy-msgty.
ls_msg-msgid = sy-msgid.
ls_msg-msgno = sy-msgno.
ls_msg-msgv1 = sy-msgv1.
ls_msg-msgv2 = sy-msgv2.
ls_msg-msgv3 = sy-msgv3.
ls_msg-msgv4 = sy-msgv4.
* add this message to log
CALL FUNCTION ‘BAL_LOG_MSG_ADD’
EXPORTING
i_log_handle = mv_balloghndl
i_s_msg = ls_msg
EXCEPTIONS
OTHERS = 0.
ENDMETHOD. “add_sy_msg
(Sorry I’rather format this)
The full source code for the application log class is 294 code lines including SAP generated comments. For now i have the public methods
ADD_SY_MSG instance method to add message to log
CREATE static method creates application log object
DISPLAY display all messages as popup, i.e. at end of program run.
GET_HIGHEST_MSGTY_XAEWIS returns highest mesage type occurred – very useful for decisions in program flow
GET_MSG_TABLE returns a BAPIRET2 structured table of all messages for further use, i.e. RETURN table in BAPI function.
SAVE save log in database – only for logs created with valid log object and subobject.

You can use it in OO and non-OO context, evaluate saved logs with SAP standard SLG1 and do many more useful things.

And if you do it that way, you will have to think about messaging and message handling a lot less.

This is – off topic. But I just felt encouraged.
Clemens

Clemens Li

# April 3rd, 2013 at 10:01 am

Application Log made easy

 
CLASS zclbc_appl_log DEFINITION
  PUBLIC
  CREATE PRIVATE .
 
  PUBLIC SECTION.
*"* public components of class ZCLBC_APPL_LOG
*"* do not include other source files here!!!
 
    CLASS-METHODS create
      IMPORTING
        !iv_balnrext TYPE balnrext OPTIONAL
        !iv_balobj_d TYPE balobj_d OPTIONAL
        !iv_balsubobj TYPE balsubobj OPTIONAL
        !iv_baldate TYPE baldate DEFAULT sy-datum
        !iv_baltime TYPE baltime DEFAULT sy-uzeit
        !iv_baluser TYPE baluser DEFAULT sy-uname
        !iv_baltcode TYPE baltcode DEFAULT sy-tcode
        !iv_balprog TYPE balprog DEFAULT sy-cprog
      RETURNING
        value(ro_instance) TYPE REF TO zclbc_appl_log .
    METHODS add_sy_msg .
    METHODS display
      IMPORTING
        !iv_popup TYPE flag DEFAULT abap_true.
    METHODS get_highest_msgty_xaewis
      RETURNING
        value(rv_msgty) TYPE sy-msgty .
    METHODS get_msg_table
      RETURNING
        value(rt_bapiret2) TYPE bapiret2_t .
    METHODS save
      RETURNING
        value(rt_bal_s_lgnm) TYPE bal_t_lgnm .
  PROTECTED SECTION.
  PRIVATE SECTION.
*"* private components of class ZCLBC_APPL_LOG
*"* do not include other source files here!!!
    DATA mv_balloghndl TYPE balloghndl .
 
    METHODS get_bal_s_msg_from_sy_msg
      RETURNING
        value(rs_msg) TYPE bal_s_msg .
ENDCLASS.
 
 
 
CLASS ZCLBC_APPL_LOG IMPLEMENTATION.
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Public Method ZCLBC_APPL_LOG-&gt;ADD_SY_MSG
* +-------------------------------------------------------------------------------------------------+
* +-------------------------------------------------------------------------------------
  METHOD add_sy_msg.
    DATA:
      ls_msg      TYPE bal_s_msg.
    ls_msg = get_bal_s_msg_from_sy_msg( ).
* add this message to log file
    CALL FUNCTION 'BAL_LOG_MSG_ADD'
      EXPORTING
        i_log_handle = mv_balloghndl
        i_s_msg      = ls_msg
      EXCEPTIONS
        OTHERS       = 0.
  ENDMETHOD.                    "add_sy_msg
 
 
* ---------------------------------------------------------------------------------------+
* | Static Public Method ZCLBC_APPL_LOG=&gt;CREATE
* +-------------------------------------------------------------------------------------------------+
* | [---&gt;] IV_BALNREXT                    TYPE        BALNREXT(optional)
* | [---&gt;] IV_BALOBJ_D                    TYPE        BALOBJ_D(optional)
* | [---&gt;] IV_BALSUBOBJ                   TYPE        BALSUBOBJ(optional)
* | [---&gt;] IV_BALDATE                     TYPE        BALDATE (default =SY-DATUM)
* | [---&gt;] IV_BALTIME                     TYPE        BALTIME (default =SY-UZEIT)
* | [---&gt;] IV_BALUSER                     TYPE        BALUSER (default =SY-UNAME)
* | [---&gt;] IV_BALTCODE                    TYPE        BALTCODE (default =SY-TCODE)
* | [---&gt;] IV_BALPROG                     TYPE        BALPROG (default =SY-CPROG)
* | [&lt;-()] RO_INSTANCE                    TYPE REF TO ZCLBC_APPL_LOG
* +-------------------------------------------------------------------------------------
  METHOD create.
    DATA:
      ls_log TYPE bal_s_log .
    CREATE OBJECT ro_instance.
* define header data of this log using IDOC-No.
    ls_log-extnumber  = iv_balnrext.
    ls_log-object     = iv_balobj_d.
    ls_log-subobject  = iv_balsubobj.
    ls_log-aldate     = iv_baldate  .
    ls_log-altime     = iv_baltime  .
    ls_log-aluser     = iv_baluser  .
    ls_log-altcode    = iv_baltcode .
    ls_log-alprog     = iv_balprog  .
 
* Neues Protokoll erzeugen
    CALL FUNCTION 'BAL_LOG_CREATE'
      EXPORTING
        i_s_log      = ls_log
      IMPORTING
        e_log_handle = ro_instance-&gt;mv_balloghndl
      EXCEPTIONS
        OTHERS       = 1.
    ASSERT sy-subrc = 0.
  ENDMETHOD.                    "CREATE
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Public Method ZCLBC_APPL_LOG-&gt;DISPLAY
* +-------------------------------------------------------------------------------------------------+
* | [---&gt;] IV_POPUP                       TYPE        FLAG (default =ABAP_TRUE)
* +-------------------------------------------------------------------------------------
  METHOD display.
 
    DATA:
     lt_handle          TYPE bal_t_logh,
     ls_display_profile TYPE bal_s_prof.
 
    APPEND mv_balloghndl  TO lt_handle.
 
    IF iv_popup IS INITIAL.
 
      CALL FUNCTION 'BAL_DSP_PROFILE_DETLEVEL_GET'
        IMPORTING
          e_s_display_profile = ls_display_profile.
 
      ls_display_profile-exp_level         = 0.
      ls_display_profile-tree_size         = 10.
 
    ELSE.
 
      CALL FUNCTION 'BAL_DSP_PROFILE_POPUP_GET'
        IMPORTING
          e_s_display_profile = ls_display_profile.
 
    ENDIF.
 
    ls_display_profile-use_grid          = 'X'.
    ls_display_profile-disvariant-report = sy-repid.
    ls_display_profile-show_all          = 'X'.
 
    CALL FUNCTION 'BAL_DSP_LOG_DISPLAY'
      EXPORTING
        i_t_log_handle      = lt_handle
        i_s_display_profile = ls_display_profile
      EXCEPTIONS
        OTHERS              = 0.
 
  ENDMETHOD.                    "DISPLAY
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Private Method ZCLBC_APPL_LOG-&gt;GET_BAL_S_MSG_FROM_SY_MSG
* +-------------------------------------------------------------------------------------------------+
* | [&lt;-()] RS_MSG                         TYPE        BAL_S_MSG
* +-------------------------------------------------------------------------------------
  METHOD get_bal_s_msg_from_sy_msg.
    rs_msg-msgty = sy-msgty.
    rs_msg-msgid = sy-msgid.
    rs_msg-msgno = sy-msgno.
    rs_msg-msgv1 = sy-msgv1.
    rs_msg-msgv2 = sy-msgv2.
    rs_msg-msgv3 = sy-msgv3..
    rs_msg-msgv4 = sy-msgv4.
    CASE rs_msg-msgty.
      WHEN 'A'
        OR 'X'.
        rs_msg-probclass = '1'.
      WHEN 'E'.
        rs_msg-probclass = '2'.
      WHEN 'W'.
        rs_msg-probclass = '3'.
      WHEN 'I'
        OR 'S'.
        rs_msg-probclass = '4'.
    ENDCASE.
    GET TIME STAMP FIELD rs_msg-time_stmp.
  ENDMETHOD.                    "get_bal_s_msg_from_sy_msg
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Public Method ZCLBC_APPL_LOG-&gt;GET_HIGHEST_MSGTY_XAEWIS
* +-------------------------------------------------------------------------------------------------+
* | [&lt;-()] RV_MSGTY                       TYPE        SY-MSGTY
* +-------------------------------------------------------------------------------------
  METHOD get_highest_msgty_xaewis.
    DATA:
      lt_bapiret2                    TYPE bapiret2_t,
      lv_ofs                         TYPE sy-fdpos.
    CONSTANTS:
      lv_msgtypes                    TYPE string VALUE 'XAEWIS'. "reversed sequence
    FIELD-SYMBOLS:
                           TYPE LINE OF bapiret2_t.
* get messages already stored
    lt_bapiret2 = get_msg_table( ).
* check presence of message type in descending order XAEWIS
    WHILE rv_msgty IS INITIAL AND lv_ofs &lt; 5.
      LOOP AT lt_bapiret2 ASSIGNING 
        WHERE type = lv_msgtypes+lv_ofs(1).
        rv_msgty = -type.
        RETURN.
      ENDLOOP.
      ADD 1 TO lv_ofs.
    ENDWHILE.
  ENDMETHOD.                    "GET_HIGHEST_MSGTY_XAEWIS
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Public Method ZCLBC_APPL_LOG-&gt;GET_MSG_TABLE
* +-------------------------------------------------------------------------------------------------+
* | [&lt;-()] RT_BAPIRET2                    TYPE        BAPIRET2_T
* +-------------------------------------------------------------------------------------
  METHOD get_msg_table.
    DATA:
      ls_msghandle TYPE balmsghndl,
      lt_logh      TYPE bal_t_logh,
      lt_msgh      TYPE bal_t_msgh,
      ls_msg       TYPE bal_s_msg,
      ls_bapiret2  TYPE bapiret2,
      lv_subrc     TYPE sy-subrc.
    FIELD-SYMBOLS:
             TYPE LINE OF bal_t_msgh.
* Initialisierung
    APPEND mv_balloghndl TO lt_logh.
    CALL FUNCTION 'BAL_GLB_SEARCH_MSG'
      EXPORTING
*       I_S_LOG_FILTER         = I_S_LOG_FILTER
*       I_T_LOG_CONTEXT_FILTER = I_T_LOG_CONTEXT_FILTER
        i_t_log_handle         = lt_logh
*       I_S_MSG_FILTER         = I_S_MSG_FILTER
*       I_T_MSG_CONTEXT_FILTER = I_T_MSG_CONTEXT_FILTER
*       I_T_MSG_HANDLE         = I_T_MSG_HANDLE
      IMPORTING
*       E_T_LOG_HANDLE         = E_T_LOG_HANDLE
        e_t_msg_handle         = lt_msgh
      EXCEPTIONS
        msg_not_found          = 1
        OTHERS                 = 2.
    IF sy-subrc  0.
* Implement suitable error handling here
      RETURN."nothing is nothing
    ENDIF.
* Alle Nachrichten nacheinander lesen und in Ausgabetabelle stellen
    LOOP AT lt_msgh ASSIGNING .
      CALL FUNCTION 'BAL_LOG_MSG_READ'
        EXPORTING
          i_s_msg_handle = 
          i_langu        = sy-langu
        IMPORTING
          e_s_msg        = ls_msg.
      IF sy-subrc = 0.
        MOVE-CORRESPONDING ls_msg TO ls_bapiret2.
        ls_bapiret2-id        = ls_msg-msgid.
        ls_bapiret2-type       = ls_msg-msgty.
        ls_bapiret2-number     = ls_msg-msgno.
        ls_bapiret2-message_v1 = ls_msg-msgv1.
        ls_bapiret2-message_v2 = ls_msg-msgv2.
        ls_bapiret2-message_v3 = ls_msg-msgv3.
        ls_bapiret2-message_v4 = ls_msg-msgv4.
        MESSAGE
          ID      ls_bapiret2-id
          TYPE    ls_bapiret2-type
          NUMBER  ls_bapiret2-number
          WITH
          ls_bapiret2-message_v1
          ls_bapiret2-message_v2
          ls_bapiret2-message_v3
          ls_bapiret2-message_v4
          INTO ls_bapiret2-message.
        APPEND ls_bapiret2 TO rt_bapiret2.
      ELSE.
*        internal murx
      ENDIF.
    ENDLOOP.
  ENDMETHOD.                    "GET_MSG_TABLE
 
 
* ---------------------------------------------------------------------------------------+
* | Instance Public Method ZCLBC_APPL_LOG-&gt;SAVE
* +-------------------------------------------------------------------------------------------------+
* | [&lt;-()] RT_BAL_S_LGNM                  TYPE        BAL_T_LGNM
* +-------------------------------------------------------------------------------------
  METHOD save.
    DATA:
      lt_handle     TYPE bal_t_logh.
    APPEND mv_balloghndl  TO lt_handle.
    CALL FUNCTION 'BAL_DB_SAVE'
      EXPORTING
        i_t_log_handle   = lt_handle
      IMPORTING
        e_new_lognumbers = rt_bal_s_lgnm
      EXCEPTIONS
        OTHERS           = 1.
  ENDMETHOD.                    "SAVE
ENDCLASS.

Naimesh Patel

# April 3rd, 2013 at 10:17 am

Hello Clemens,

Thanks Much for the utility class on Application Log. I do use Application Log whenever I get a chance. Application Log FMs have everything wrapped which is needed for nice, clean, fast message handling. Your Utility class method to get the messages information from SY-MSG* comes very handy when using the MESSAGE .. INTO addition and still want to store the Application Log.

And your code looks nice using the ABAP Code Syntaxer 🙂

Regards,
Naimesh Patel
Nathan Jones

# April 5th, 2013 at 6:17 am

Hi Naimesh
Thank you for the clarification.
Nath
NorthernGuy

# April 5th, 2013 at 7:57 am

Hello,

I have a question related to this. It’s clear that we should use excepetion classes in case of all unexpected programm situations.

But what do you use if you just want to send some kind of information like ‘Document posted’. This is clearly no exception. I think in this case you can use the T100 messages. But official ABAP programmimg guidelines says, you should only use messages for classical dynpro programming.

I’m just curious how you deal with all those information messages. Do you use eception classes for them as well or do you use still the T100 messages.

Best regards,
Tapio
Naimesh Patel

# April 5th, 2013 at 9:11 am

Hello Tapio,

I faced similar dilemma on what to use when to send Success message. To do that, I send the return value back and let the actor (caller) decide what to do. E.g. my UPDATE_DOCUMENT would have RV_SUCCESS. This would contain the flag when transaction is successful. I know this might not be the best elegant solution but I didn’t want to use Exception class to raise the Success message. As after Success, Caller may want to call different methods for post processing:
Method definition
```
 
  METHODS:
    update_document 
       returning value(rv_success) type flag
       raising ZCX_ERROR.
 
```
Actor code would be:
Actor
```
 
  TRY .
      LV_SUCCESS = o_document->update_document( ).
    CATCH zcx_error into lo_error.
      lv_msg = lo_error->get_text( ).
      exit.
  ENDTRY.
*  
  if lv_success = 'X'.
     o_document_collector->add_doc( o_document ).
  endif.
 
```
Do you do similar way or you use something else?

Thanks,
Naimesh Patel
NorthernGuy

# April 5th, 2013 at 9:45 am

Hello Naimesh,

to be honest I use a mixture of everything. Depends on the situation. But I’m not very happy with it. I feel uncomfortable using exception classes for success messages.

Best regards,
Tapio
One Plume

# April 15th, 2013 at 9:55 am

Hi Clemens,

Could you share your class through other means ? saplink ? else ?
if not, never mind 🙂
NorthernGuy

# April 15th, 2013 at 11:55 am

@One Plume

You can also use Interface IF_RECA_MESSAGE_LIST. It provides also the above mentioned functionality.

You get the instance with CF_RECA_MESSAGE_LIST=>CREATE.

Happy Logging 🙂
Tapio