Reflection like mechanism in ABAP?

Question

Hello Experts,
I'm looking for a mechanism in ABAP which will allow me to create an instance of a class which is known only at runtime, much like the reflection mechanism in Java.
The reason I need this is that I'm writing a generic code for a factory method which needs to instantiate a concrete class which is known only at runtime, and could be possibly extended later on.
So far the only thing that comes close is the statement
CREATE OBJECT oref TYPE classname.
The problem is that when using this statement "classname" should be an existing class. In the solution I'm looking for, "classname" is known only at runtime, and may not exist in the specific landscape (in which case I'd like to get an exception that the class does not exist).
Thanks in advance for your help,
Idan

Answer 1

Looking for something like this:
DATA: gv_classname TYPE seoclsname.
DATA: gob_object TYPE REF TO object.
DATA: gr_error TYPE REF TO cx_dynamic_check.
DATA: gv_message TYPE string.
gv_classname = 'CL_GUI_ALV_GRID'.
TRY .
    CREATE OBJECT gob_object TYPE (gv_classname).
  CATCH cx_sy_create_object_error INTO gr_error.
    gv_message = gr_error->get_text( ).
    WRITE :/1 gv_message.
  CATCH cx_sy_dyn_call_param_missing INTO gr_error.
    gv_message = gr_error->get_text( ).
    WRITE :/1 gv_message.
ENDTRY.
The problem would be to determine, like in this case, the obligatory parameters upon creating the object.