topic Re: Class Definition within a program in Application Development and Automation Discussions

Class Definition within a program

Former Member — Sat, 16 Sep 2006 08:49:34 GMT

Hi All,

My requirement is such that I need to create a class within a program. My class has 3 methods.

1. In the first method, meth1, I need to import a select-option values(s_emp), that is entered on the selection screen.

2. In the second method, meth2, I need to import a table(t_emp) into the method.

3. In the third method, meth3, I need to export a table(t_emp2) from the method.

Can anyone pls let me know the correct syntax that I can use to define these methods(i.e., the class definition) ?

Re: Class Definition within a program

Former Member — Sat, 16 Sep 2006 08:52:31 GMT

Hi Abhishek,

You can check these simple ABAP OBJECTs programs.

ABAP_OBJECTS_ENJOY_0           Template for Solutions of ABAP Object Enjoy Course
ABAP_OBJECTS_ENJOY_1           Model Solution 1: ABAP Objects Enjoy Course       
ABAP_OBJECTS_ENJOY_2           Model Solution 2: ABAP Objects Enjoy Course       
ABAP_OBJECTS_ENJOY_3           Model Solution 3: ABAP Objects Enjoy Course       
ABAP_OBJECTS_ENJOY_4           Model Solution 4: ABAP Objects Enjoy Course       
ABAP_OBJECTS_ENJOY_5           Model Solution 5: ABAP Objects Enjoy Course       
DEMO_ABAP_OBJECTS              Complete Demonstration for ABAP Objects           
DEMO_ABAP_OBJECTS_CONTROLS     GUI Controls on Screen                            
DEMO_ABAP_OBJECTS_EVENTS       Demonstration of Events in ABAP Objects           
DEMO_ABAP_OBJECTS_GENERAL      ABAP Objects Demonstration                        
DEMO_ABAP_OBJECTS_INTERFACES   Demonstration of Interfaces in ABAP Objects       
DEMO_ABAP_OBJECTS_METHODS      Demonstration of Methods in ABAP Objects          
DEMO_ABAP_OBJECTS_SPLIT_SCREEN Splitter Control on Screen

Cheers

Re: Class Definition within a program

anversha_s — Sat, 16 Sep 2006 08:56:43 GMT

hi,

CLASS counter DEFINITION.

PUBLIC SECTION.

METHODS: method1 IMPORTING value(s_emp) TYPE give_type,

method2 IMPORTING table(t_emp) LIKE ITAB_NAME,

method3 EXPORTING table(t_emp2)LIKE ITAB_NAME2.

ENDCLASS.

rgds

anver

if helped mark points

Re: Class Definition within a program

Former Member — Sat, 16 Sep 2006 09:10:43 GMT

this is a a little sample:

REPORT ZCLASS .

TABLES MARA.

SELECT-OPTIONS: SO_MATNR FOR MARA-MATNR.

CLASS MY_CLASS DEFINITION DEFERRED.

DATA: MY_OBJECT TYPE REF TO MY_CLASS.

TYPES: BEGIN OF TY_ITAB,

FIELD1,

FIELD2,

FIELD3,

END OF TY_ITAB.

DATA: EXPORT_ITAB TYPE STANDARD TABLE OF TY_ITAB,

IMPORT_ITAB TYPE STANDARD TABLE OF TY_ITAB.

----

CLASS MY_CLASS DEFINITION

----

........ *

----

CLASS MY_CLASS DEFINITION.

PUBLIC SECTION.

METHODS: GET_SELECTION_SCREEN,

GET_INTERNAL_TABLE IMPORTING P_ITAB TYPE TABLE,

SET_INTERNAL_TABLE EXPORTING P_ITAB TYPE TABLE.

ENDCLASS.

----

CLASS MY_CLASS IMPLEMENTATION

----

........ *

----

CLASS MY_CLASS IMPLEMENTATION.

METHOD GET_SELECTION_SCREEN.

IF SO_MATNR[] IS INITIAL.

ENDIF.

ENDMETHOD.

METHOD GET_INTERNAL_TABLE.

ENDMETHOD.

METHOD SET_INTERNAL_TABLE.

ENDMETHOD.

ENDCLASS.

START-OF-SELECTION.

CREATE OBJECT MY_OBJECT.

CALL METHOD MY_OBJECT->GET_SELECTION_SCREEN.

CALL METHOD MY_OBJECT->GET_INTERNAL_TABLE

EXPORTING P_ITAB = EXPORT_ITAB.

CALL METHOD MY_OBJECT->SET_INTERNAL_TABLE

IMPORTING P_ITAB = IMPORT_ITAB.

Anyway you should consider all global data defined in a program are seen by local class, so perhaps you don't need to create methods to import global data.

Max

Re: Class Definition within a program

Former Member — Mon, 18 Sep 2006 04:20:59 GMT

Thanks for the reply Max and also thanks to others for the valuable info. Points awarded.