Aggregation sometimes involves delegation.  The 'parent' object delegates 
requests to the right aggregated objects (in other cases, the 'parent' 
object returns its aggregated objects and you use them directly).

Zeev

At 10:43 PM 6/6/2002, Sebastian Bergmann wrote:
>Andi Gutmans wrote:
> > The talk was about aggregation of instances of classes with auto-proxy.
>
>   I think that's called delegation, not aggregation. Have a look at what
>   the JavaLab guys at my University are doing under the term
>   "delegation":
>
>     http://javalab.cs.uni-bonn.de/research/darwin/
>
>   and
>
>     http://javalab.cs.uni-bonn.de/research/darwin/delegation_eng.html
>
>   It'd be cool to have something like that in PHP :-)
>
>--
>   Sebastian Bergmann
>   http://sebastian-bergmann.de/                http://phpOpenTracker.de/
>
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