Traits Example

> Hello,
>
> Can anyone give me a simple Traits example?  I am trying to figure  
> out if it would be useful for me in the context of developing Aida  
> applications.
>
> In Aida, a WebApplication observes a domain model object.  Let's  
> call it WebAppModel.
>
> Of course, you could subclass ANY object to create your WebAppModel,  
> but I still want it to know how to do certain things, like start and  
> stop itself.
>
> In other words, I might have one WebAppModel that subclasses Object,  
> and another that subclasses OrderedCollection, but I don't want to  
> teach them both how to start or stop each time I create a new one,  
> and it seems less elegant to subclass everything from a WebAppModel  
> base class and then include the actual objects they model as  
> instance variables.
>
> Does this make sense or am I missing some other fundamental concept,  
> and is this what Traits are for?
>
> Thanks,
>
> Rob Rothwell
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