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From Nicola Ken Barozzi <nicola...@apache.org>
Subject Re: Fresh Outlook: (was RE: [desperate plea] RE: The need for 'hints')
Date Wed, 26 Jun 2002 09:24:34 GMT

Peter Donald wrote:
> On Wed, 26 Jun 2002 17:08, Nicola Ken Barozzi wrote:
>>Peter Donald wrote:
>>>On Wed, 26 Jun 2002 16:26, Nicola Ken Barozzi wrote:
>>>>Peter Donald wrote:
>>>>>It really comes down to what the component writer wants to classify as
>>>>>constraint and what they want to classify as a hint/policy. The
>>>>>component writer could choose to make "secure" a constraint or they
>>>>>could choose to make it a hint.
>>>>Peter, what you say makes sense, but how the f**k can you make the client
>>>>specify a hint||constraint with
>>>>  SSLSocket sslSocket = (SSLSocket)cm.lookup(socketType);
>>>ummm ... metadata?
>>Me no understand.
>>Me need to see code. Example.
>>Please help poor programmer.
> It is no different from any of the other example I have given so go read the 
> archives.

I looked at them again, but didn't find the answers I need.
<begging-mode>Please give me a link or some key words</begging-mode>

>>>BTW there is not a chance that I would suggest that you directly extract
>>>a resource directly from a ComponentManager. That would suck
>>>unbelievably, would never scale and lead to all sorts of design
>>>compromises. You aquire a SocketManager who does the work.
>>If my component is Composable, I get a ComponentManager, not a
>>I don't want to make a SocketManager.
>>I want to use a pre-built Manager.
> Then your program wont scale, will be hell to maintain and suffer from pattern 
> hell. Self induced aswell - you don't honestly expect me to feel sorry for 
> you do you? :)

;-) hehehe

Let me see if I understand.

ComponentManager should give you course grained components.
This means that a simple lookup is always enough.
This is more easily understood if we think of Blocks or services.

This would mean (Cocoon example) that the cm would not give you a 
Transformer or a Generator, but a service that manages them.

This service would have his own logic of query and selection; it's more 
near to implementations and has more knowledge of how it all works.

Is this it?

Let me say anyway that I don't particularly like the fact that a 
developer has to write a Manager, but I suppose that this is what 
ContainerKit is for?

>>Do I have to pay you to get example in code or are you gonna enlighten
>>me for free if I whine enough?
> What has been wrong with any of the other code examples?

<doing action="banging head on the wall">Don't find 'em :-(</doing>

Nicola Ken Barozzi                   nicolaken@apache.org
             - verba volant, scripta manent -
    (discussions get forgotten, just code remains)

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