Unable to set new values in Entity

Hi Experts,
I am trying to change an entity from readonly to changeable and set property of an attribute. But, i am not successful. In the below "If ME->IS_CHAN......" condition, the second condition is not successful and it doesnot let the entity to change. I am not sure, from where the data is getting filled for "ME->CONTAINER_PROXY->DATA_REF->ATTRIBUTE_REF". Can someone please point me the solution ?
Thanks in advance.
method IF_BOL_BO_PROPERTY_ACCESS~SET_PROPERTY .
data: LV_IDX       type CRMT_IDX,
        LV_PROPS_OBJ type ref to IF_GENIL_OBJ_ATTR_PROPERTIES.
field-symbols: <DATA> type any,
                 <VALUE> type any.
MAKE_VALID_STATE( ).
assign ME->CONTAINER_PROXY->DATA_REF->ATTRIBUTE_REF->* to <DATA>.
assign component IV_ATTR_NAME of structure <DATA> to <VALUE>.
if SY-SUBRC = 0.
*   check changeability of property
    LV_PROPS_OBJ = ME->CONTAINER_PROXY->GET_ATTR_PROPS_OBJ( ).
    try.
        LV_IDX = OBJECT_MODEL->GET_ATTR_IDX_BY_NAME(
                             IV_OBJECT_NAME = ME->MY_INSTANCE_KEY->OBJECT_NAME
                             IV_ATTR_NAME   = IV_ATTR_NAME ).
        if ME->IS_CHANGEABLE( ) = ABAP_TRUE and
           LV_PROPS_OBJ->GET_PROPERTY_BY_IDX( LV_IDX ) ne IF_GENIL_OBJ_ATTR_PROPERTIES=>READ_ONLY.
          if <VALUE> ne IV_VALUE.
            if ME->MY_MANAGER_ENTRY->DELTA_FLAG is initial.
*             first 'change' -> proof that entity is locked
              if ME->MY_MANAGER_ENTRY->LOCKED = FALSE.
                if ME->LOCK( ) = FALSE.
                  return.
                endif.
              endif.
Edited by: Gaurav Subramaniam on Jun 2, 2011 5:30 PM
Edited by: Gaurav Subramaniam on Jun 2, 2011 5:31 PM

Hi Gaurav,
As already mentioned your entity is set to READ-ONLY mode at GenIL level. Hence, the following line returns READ-ONLY :-
LV_PROPS_OBJ->GET_PROPERTY_BY_IDX( LV_IDX ) ne IF_GENIL_OBJ_ATTR_PROPERTIES=>READ_ONLY.
This is set at GenIL level in the GenIL class. Hence, you'll have to find the GenIL class and look for method - SET_ATTR_PROPERTIES. Here you will find code that sets mode (changeable / readonly) each attribute.
Follow below steps :-
- Create a Zclass and inherit it from the above class.
- Redefine the above method.
- Set attributes to changeable mode.
Here is a sample code :-
DATA: lv_attr_props       TYPE REF TO if_genil_obj_attr_properties.
* First get the property object
lv_attr_props = iv_object->get_attr_props_obj( ).
lv_attr_props->set_property_by_name( iv_name = 'Field1'
                                       iv_value = if_genil_obj_attr_properties=>changeable ).
lv_attr_props->set_property_by_name( iv_name = 'Field2'
                                       iv_value = if_genil_obj_attr_properties=>changeable ).
Alternatively you can set attribute properties for all fields at once :-
* set property 'changeable' for all attributes
lv_attr_props->set_all_properties( if_genil_obj_attr_properties=>changeable ).
Thanks,
Ashish

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