Capture the exceptions from BW Bex Report in a class/interface

Question

Hi....
I am trying to capture the exceptions defined in the BW BEx Reports in a class (superclass - CL_RSR_WWW_MODIFY_TABLE) in a variable or something.
This is actually to change the properties of a table in Web Applcn. acc to the exceptions by altering the cell content in the class(Transaction - SE80).
Is it possible to store the exceptions in a variable in the class???

Answer 1

Hi Smriti,
Exception and Exception Handling can be based on classes in ABAP Objects. In an exception situation, an exception is represented by an exception object –
i.e. an instance of an exception class. Its attributes contain information about the
error situation. Exception classes can be defined both locally and globally. When a class based exception is raised, the system interrupts normal   program flow and tries to navigate to the suitable handler.
An exception can only be handled if the causing statement(s) is enclosed in a TRY-ENDTRY block. If a exception occurs in a TRY block, the system first searches for a CATCH statement (which will handle the exception) in the same block and then step by step upwards in all enclosing TRY-ENDTRY blocks. If it finds one, it navigates to this handler, else if TRY-ENDTRY block is in a procedure, it then tries to propagate the exception to the calling program. After exception occurs, system searches through the listed exception handlers in specified order and executes first handler whose CATCH statement contains the relevant exception class or one of its superclasses.
PARAMETERS: p_num1 TYPE i,
            p_num2 TYPE i.
DATA: gv_result TYPE i,
      gv_text   TYPE string,
Defining reference variables  with reference to the common superclass *
CX_ROOT of all exception classes.                                     *
      z_ref_exc TYPE REF TO cx_root.
TRY.
    gv_result = p_num1 / p_num2.
    WRITE / gv_result.
For division by zero, the runtime system raises the exception         *
cx_sy_zerodivide. This is handled in the CATCH block. The reference   *
to the appropriate instance is stored in the data object z_ref_exc.   *  
  CATCH cx_sy_zerodivide INTO z_ref_exc.
Handler can access the instance's exception text using the functional *
method GET_TEXT.                                                      *   
    gv_text = z_ref_exc->get_text( ).
    MESSAGE gv_text TYPE 'I'.
ENDTRY.
Award points if found useful.
Regards
Indrajit