[news.eclipse.technology.gmt] Re: oaw: beginner questions

[Sven Efftinge <sven@xxxxxxxxxxx>]

Yannick wrote:
> Well I'd like to store information for further use. For example when
> parsing a UML2 file containing associations between class, I need to
> first parse associations then classes (since associations in my file are
> not nested in uml class element).
>
> In fact I did it with a static variable inside a java extension but I
> wanted to know how this could be done with oAW.

You don't need to store such informations, just define an extension 
(containing your expression) and invoke it each time you need the 
information.
If you are worrying about performance use the 'cached' keyword. It 
garantees that the expression is only evaluated once for each Class 
instance.

regards,
Sven