topic Re: How to access dynamic object. in Application Development and Automation Discussions

How to access dynamic object.

Former Member — Mon, 08 Dec 2008 14:44:57 GMT

Hi Gurus,

I have an issue while working with dynamic obj.actually the scenario is, am implementing one BADI for this object input parameter is ip_object which is type OBJECT (not specific to any class), at runtime class will be assigned this object, here my question is how can i use (attributes and methods) that object in development.

Ex: A class /SCA/CL_SVDELIVERY is having protected attribute MPO_DLV_REF (MPO_DLV_REF type reff to a structure /SCMB/DM_DELVRY_STR).

I am trying to access the above attribute (MPO_DLV_REF) in a BADI /SCMB/BOL_VALFRMWRK method VALIDATE, this VALIDATE method is importing IP_OBJECT which is Type Ref to OBJECT.

When i try to access like this: IP_OBJECT ->MPO_DLV_REF-> (some field name in /SCMB/DM_DELVRY_STR) it is giving error.(Error:MPO_DLV_REF is unknown)

Re: How to access dynamic object.

Former Member — Mon, 08 Dec 2008 15:13:42 GMT

Hi Venu,

Down-cast it into a more specific object ref variable and access its attribute...

DATA lo_object TYPE REF TO /SCA/CL_SVDELIVERY.

lo_object ?= IP_OBJECT.

now u can access this lo_object->MPO_DLV_REF attribute..

Code like the below example...

*----------------------------------------------------------------------*
*       CLASS c1 DEFINITION                                            *
*----------------------------------------------------------------------*
CLASS c1 DEFINITION.
  PUBLIC SECTION.
    DATA ls_makt TYPE makt.
    METHODS constructor.
ENDCLASS.                    "c1 DEFINITION

*----------------------------------------------------------------------*
*       CLASS c1 IMPLEMENTATION                                        *
*----------------------------------------------------------------------*
CLASS c1 IMPLEMENTATION.
  METHOD constructor.
    SELECT SINGLE * FROM makt INTO ls_makt WHERE spras EQ sy-langu.
  ENDMETHOD.                    "constructor
ENDCLASS.                    "

DATA attribute_name TYPE char40 VALUE 'LS_MAKT' .

DATA generic_obj TYPE REF TO object.

FIELD-SYMBOLS : <attribute>,
                <field>.

START-OF-SELECTION.

  CREATE OBJECT generic_obj TYPE c1.

  ASSIGN  generic_obj->(attribute_name) TO <attribute>.

  ASSIGN COMPONENT 'MAKTX' OF STRUCTURE <attribute> TO <field>.

  WRITE <field>.   " ls_makt-maktx

However in both cases u can access only its public attributes....

Cheers,

Jose.

Re: How to access dynamic object.

Former Member — Wed, 10 Dec 2008 09:55:37 GMT

Hi Jose,

Thanks for your fast response,it is working fine for public attributes,but how to access protected attributes.....

Re: How to access dynamic object.

Former Member — Wed, 10 Dec 2008 10:09:16 GMT

Hi Venu,

Visibility ( public/protected/private ) is a property of a class... and i don't think it is not possible to view/use a protected component of a class outside it ( exception sub-class/friend )........: (

Cheers,

Jose