Global Class : Passing parameters ( Select-Options and Internal table ) to methods

Steps :-

• Go to Transaction code SE24.

• Enter the Object Type as Class name which start's with YCL_ or ZCL_<Class name> and click on create.

• Pop-up will appear.

• Enter the short description and click on save button.

• Class Interface looks like,

• Enter the method name.
• Select the Level and Visibility.

• Click on method name and click Parameters button.

• Screen looks like,

• Enter the Parameter name and select the type of it.

• Use Associated Type as  select-options.

Creating custom select-options

• Go to transaction code SE11.

• Click on Data Type radio button.
• Enter the standard SELECT-OPTIONS structure name i.e RSDSELOPT.

• Click on Copy .

• Pop-up will appear.

• Customize select-options name and click on continue.

• Assign the package name , either Local package or Package.

• Check the status bar.

• Click on Change button.

• Pop-up will appear.

• Click on "Main,in Orginal Lang" .

• Structure looks like,

• Choose the Component Type for LOW and HIGH as per requirements and press ENTER.

• Save -> Check -> Activate.

• Copy the structure name.
• Go back to SE24.

• Enter the Associated Type as :  customized Select-options name and press ENTER.

• For Internal table as parameter :Enter Parameter name.
• Select the Type.
• Enter the associated Type as : Table Type and press ENTER.

• Click on Save and Click on back button.

• To implement the method.
• Double click on method name.

• Screen looks like,

• Enter the logic.

  

  SELECT * FROM MAKT INTO TABLE CH_ITAB WHERE MATNR BETWEEN IM_MATNR-LOW AND IM_MATNR-HIGH.

• Save it and click on BACK button.

• Define one more method.
• Enter the method name.
• Select the Level and Visibility of the method.
• Enter the description.

• To add parameters to method.
• Click on method name and click on Parameters button.

• Enter the parameter name , its Type and Associated Type as Table Type and press ENTER.

• Save it and click on BACK button.

• To implement the method.
• Double click on method name.

• Screen looks like,

• Enter the Logic.

DATA : WA_MAKT TYPE MAKT.

  

  LOOP AT IM_ITAB INTO WA_MAKT.

    

    WRITE : / WA_MAKT-MATNR , WA_MAKT-SPRAS , WA_MAKT-MAKTX.

  ENDLOOP.

• Save and click on back button.

• Save -> Check -> Activate.

Main Program

• Go to transaction code : SE38.

• Enter the program name which start's with Y or Z< program name> and click on create button.

• Enter the Title.
• Select the Attribute Type as : Executable Program.
• Click on SAVE button.

Source Code

• To call  global class method.
• Click on Pattern.

• Pop-up will appear.

• Select "ABAP Objects Patterns"  radio button and click on continue.

• Pop-up will appear.

• Enter the instance name , class name.

• Select the method using F4  help.

• Select the method.

• Double click on method.

• Click on Continue.

• Similarly, we call other global methods.

Source code

TABLES : MAKT.

DATA : OBJ TYPE REF TO   ZCL_SELECT_OPT_ITAB.

DATA : IT_MAKT TYPE TABLE OF MAKT.

SELECT-OPTIONS : S_MATNR FOR MAKT-MATNR.

CREATE OBJECT OBJ.

CALL METHOD OBJ->FETCH_DATA

  EXPORTING

    IM_MATNR = S_MATNR

  CHANGING

    CH_ITAB  = IT_MAKT

    .

CALL METHOD OBJ->DISPLAY

  EXPORTING

    IM_ITAB = IT_MAKT

    .

• Save -> Check -> Activate.

• Execute ( F8).

Input

• Enter the input.

• Execute (F8).

Output