Need help to cast

[Former Member]

Hi all,

i need some help.

I need to create a new method in class CL_PO_ITEM_HANDLE_MM, so i have created a new class named Z_CL_PO_ITEM_HANDLE_MM and inherited from CL_PO_ITEM_HANDLE_MM class and add a method name CHECK_ASSIGNMENT.

Now i would like to call this method ; in my BADI the CL_PO_ITEM_HANDLE_MM class is used so i wanted to cast CL_PO_ITEM_HANDLE_MM class to Z_CL_PO_ITEM_HANDLE_MM like this :

my_instance ?= standard-instance.

The code is compiled well but when i execute this code i get a dump with this message :

Dynamic type conflict when assigning references

It was tried to assign a reference to a rereference variable using the

'CAST' operation ('?=' or 'MOVE ?TO').

However, the current content of the source variable does not fit into

the target variable.

So i can't do that ? if not how can i resolve my problem ?

Thanks for your help.

Cheers

source type: "\CLASS=CL_PO_ITEM_HANDLE_MM"

target type: "\CLASS=Z_CL_PO_ITEM_HANDLE_MM"

[Former Member]

Hi

?= is for downcasting, so it should work if you need to move from Z_CL_PO_ITEM_HANDLE_MM to CL_PO_ITEM_HANDLE_MM

MOVE .... ?TO is for upcasting , so if you need to move from CL_PO_ITEM_HANDLE_MM to Z_CL_PO_ITEM_HANDLE_MM.

But your problem is to get the instance of the BADI:

u should know the name assigned to the instance of the BADI, but you're in the BADI when you try to do the casting, so I don't know if it's possbile.

Max