ABAP BAPI BO Class Code Generator – Business Object parameters

[AlwinPut]

This blog post is a follow-up blog post of https://blogs.sap.com/2019/08/27/abap-bapi-bo-class-generator/.

In this post is explained what effect the Business object class parameters have on the generated code.

The example below will be used to explain the Business Object class selection screen parameters.

Business Object name

The Business Object name is used in messages to the user.

• Existence check
  

   "Sales Order &1 does not exist.
  
   MESSAGE e001(zsd_sales_order)
  
     WITH key
  
     INTO DATA(lv_dummy) ##NEEDED.

  
  


• 
  

  In test class, for example...

  
  

   WRITE: / 'sales order instantiated. '. 
  
  
  
   WRITE: / 'sales order not instantiated. Error: '.

  
  

Module name abbreviation and the ABAP object name

These are used in:

• Report name:
  

  REPORT zsd_sales_order_p.

  
  


• Business Object Class interface name:
  

  INTERFACE zsd_sales_order_boi.

  
  

• Business Object class name:
  

  CLASS zsd_sales_order_bo DEFINITION.

  
  


• Test class name:
  

  CLASS zsd_sales_order_bo_tt DEFINITION.

  
  


• Variable names
  

   DATA(_sales_order_bo) =
  
     zsd_sales_order_bo=>create_instance_bo(
  
      _sales_order_crea_s ).

  
  


• Message class name:
  

        MESSAGE e001(zsd_sales_order)
  
          WITH key
  
          INTO DATA(lv_dummy) ##NEEDED.
  
  

  
  

ABAP naming

You have two options

• DSAG 2016 short naming


• Long naming

Examples:

Variable type	DSAG 2016 short naming	Long naming
Local structure	_sales_order_crea_s	ls_sales_order_crea
Local reference	_sales_order_bo	lr_sales_order_bo
Local Exception variable	_return_exc	lr_return_exc
Global class element	key	gs_key
Global structure type	tcreate_data_s	gts_create_data

BO main DB table

The database table is used for

The existence check

•   METHOD check_existance.
  

      SELECT SINGLE
  
  
  
          'X' AS exist_ind
  
  
  
        FROM vbak
  
  
  
        INTO @DATA(lv_exist_ind)
  
  
  
        WHERE
  
  
  
          vbak~vbeln = @gs_key.
  
  
  
      IF sy-subrc <> 0.

  
  


• It is also used for the key fields if the BOR object type is empty.

BOR object type

The BOR object type is used for determining the key fields.

Generate class interface indicator

This checkbox indicates whether a BO Class interface should be generated.

If not, than the data types and method declarations will be done in het BO Class definition.

Example of BO class interface

Example of BO class with class interface reference

 

Keep following the upcoming blog posts for more detailed information about the tool.