Declaring Field Symbols in Public Section of class

Question

Dear All,
I am working with class and hav declared some field symbols in one of the method.
Now I want to move these declaration in Public section of the class so that this field symbol declaration can be used by other methods of the class but I am not able to do the same.
Can anyone help me in finding as what I am doing wrong here.
Regards,
Lalit Kabra

Answer 1

What you are trying to do is define an attribute. I doubt you can use field symbol as a class attribute. Consider using a data object instead.
Data : dref type ref to data.
This can later be deferenced in the individual methods.
Hope this helps.
Here's an example for the same:
REPORT  z_class_001                             .
*       CLASS lcl_class1 DEFINITION
CLASS lcl_class1 DEFINITION.
  PUBLIC SECTION.
    DATA dref TYPE REF TO data.
    METHODS : constructor IMPORTING i_type TYPE char20,
              meth1 IMPORTING value TYPE i.
ENDCLASS.                    "lcl_class1 DEFINITION
*       CLASS lcl_class1 IMPLEMENTATION
CLASS lcl_class1 IMPLEMENTATION.
  METHOD constructor.
    CREATE DATA dref TYPE (i_type).
  ENDMETHOD.                    "constructor
  METHOD meth1.
    FIELD-SYMBOLS <fs> TYPE ANY.
    ASSIGN dref->* TO <fs>.
    WRITE: 'Value is ' ,value.
    ASSIGN value TO <fs>.
    WRITE: 'Field symbol is ', <fs>.
  ENDMETHOD.                                                "meth1
ENDCLASS.                    "lcl_class1 IMPLEMENTATION
START-OF-SELECTION.
  DATA ref_class TYPE REF TO lcl_class1.
  CREATE OBJECT ref_class EXPORTING i_type = 'I'.
  CALL METHOD ref_class->meth1
    EXPORTING
      value = 3.
BR,
Advait
Edited by: Advait Gode on Sep 16, 2009 9:44 AM