ABAP Application Controller (abapApplCntl)

Features

Application Controller saves you time in your daily business and in the maintenance of your applications. Replace your logic without having to change the implementation by simply adjusting it in Customizing.

• Object management and control on singleton via customizing
• Message Handler

Requirements

• abapGit

First steps

• Import via abapGit
• start Transaction code ZAPPL_FIRST_INSTALL

Class framework

Classes are created dynamically using interfaces

• Call solely via references to interfaces (no reference to the class necessary)
• see [customizing](## Customizing).

DATA: lo_demo  TYPE REF TO zif_appl_demo.

**Creation object*
lo_demo  ?= zcl_appl_cntl=>get_single_obj( 'DEMO_APPL' ).

**Call any method*
call method lo_demo->run( ).

Message controller

DATA: lo_appl_message TYPE REF TO zif_appl_message.

**Creation object*
 lo_appl_message = zcl_appl_cntl=>get_appl_message( ).
 
**Check error
lo_appl_message->check_error( ).

**Output messages in modal dialogue window
lo_appl_message->->show_messages('M' ).

Message handling

Message handling after the function module

tables
 object_identifikation = lt_obj_key
exeptions
 error   = 1 
 warning = 2
 others  = 3.
 
if sy-subrc ne 0.
    o_appl_message->add_message(
       EXPORTING
         im_mstyp = sy-msgty
         im_msgid = sy-msgid
         im_msgno = sy-msgno
         im_msgv1 = sy-msgv1
         im_msgv2 = sy-msgv2
         im_msgv3 = sy-msgv3
         im_msgv4 = sy-msgv4.
         ).
endif.

Message handling after the BAPI module

CALL METHOD o_appl_message->add_message2( ls_return ).
* or
o_appl_message->add_message2( ls_return ).

Message handling using message class

  o_appl_message->add_message(
    EXPORTING
      im_mstyp = 'S'
      im_msgid = 'ZAPPL_MESSAGE'
      im_msgno = 001 ).
  IF 1 = 2.
* for where-used list
    MESSAGE s001(zappl_message).
* This is a success message.
  ENDIF.

Database access

Database access can be realised via own classes.

The interfaces ZIF_APPL_OBJECT (application object) and ZIF_APPL_OBJECT_DB (DB Object) are to be used.

Class ZCL_APPL_EXAMPLE_DB, for example, can be used as a copy template.

Customizing

ZAPPL_OBJ_TYPES