RE: (Fwd) RE: Re: [Rcosjava-general] messaging system

[Peggy N. <pe...@ip...>]

Hi Andrew,

Doh! I'd forgotten to follow up that AddHandler message to look for 
an answer.  I think I tried to block it out from my mind, being one of 
the messages I traced through while trying to understand messaging, 
without any luck.

That makes complete sense, to register from the OSMsgHandler 
constructor. Thanks.

Regards,
Peggy





> I hope I'm following what you want.  You're wondering how an OS or
> Animator level object registers with their PostOffice.  That is, how
> does it end up in the registeredHandlers TreeMap and receive messages
> to process.
> 
> For example, the Kernel calls super(String, OSOffice). 
> OSMessageHandler creates a new AddHandler message and calls
> processMessage on the OSOffice.  AddHandler calls the addHandler
> method on PostOffice (which actually is found in
> SimpleMessageHandler).  This adds the Kernel to registeredHandlers.
> 
> Animators do the same thing except using AnimatorMessageHandler and
> AnimatorOffice.
> 
> The stuff that is confusing is the constructor in PostOffice.  For
> example, type (the class name) is not used by anything but exists
> there. -- 
> 
> 
> 
> 
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