Language describing action on classes

Hi,

Are there any language describing action on classes :

for example :

c.addAttribute(int i) to add an attribute i of type integer to the
class c
c.addMethod( int get() ) to add an operation called get to the class
c
.... etc

I want to make some changes to an object model, and i need a language
to describe action to do.

Thanks
(excuse my English)

caspertn <naoufel_machta@yahoo.fr> writes:
> Are there any language describing action on classes :
>
> for example :
>
> c.addAttribute(int i) to add an attribute i of type integer to the
> class c
> c.addMethod( int get() ) to add an operation called get to the class
> c
> ... etc
>
> I want to make some changes to an object model, and i need a language
> to describe action to do.
>
> Thanks
> (excuse my English)

Your English is fine. What you're looking for is called a
"meta-object protocol". I don't know what language you're targeting,
but the best known MOP is in Lisp:

http://wiki.alu.org/Metaobject_Protocol

By the way, _The Art of the Metaobject Protocol_ by Gregor Kiczales
is well worth reading regardless of the languages you use.

Regards,

Patrick

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