1. MORE OOP STUFF
I have been watching with some interest the discussions
on OOP programing. Where I work we use a DBMS
package that allows Procedural or OOP style programing.
In the OOP style programming, there is a way to AUGMENT
a Function or Procedure that is Internal or External. Internal
Functions or Procedures are those defined by the language,
while External are those defined either in the main program
or an include file.
Below is an example of how Augmentation works.
function Sqrt integer worknum Returns integer
local integer myint
Forward Send Sqrt
<unique code> = Code added by programmer
Function_Return myint
end_function
procedure SysDate
<unique code> = Code added by programmer
Forward Send SysDate
end_procedure
<unique code> is code added by the programmer to modify
the properties or messages for the procedure or function.
The Forward Send command passes on the messages and
properties to the calling object.
In the function the programmers code does the alteration before
the Sqrt is sent.
In the procedure then programmers codes alters the SysDate
procedure after the SysDate messages and properties are
sent to the ogject.
This ability to AUGMENT functions and procedures is a very
useful ability, due to the fact that you can modify a function or
procedure just a little, without having to completly rewrite the
code for the function or procedure.
Maybe some day EUPHORIA will have a way to AUGMENT
functions and procedures. Even if it does not support OOP
style coding.
Thanks for everything.
Later:
+ + + Rev. Ferlin Scarborough - Centreville Alabama - U.S.A
