Re: context

Oh no sorry, I didn't mean that (using the context object), that would break 
the whole beauty ...

... but then I get it ... if you know the cntainer you will be inside, is 
because you know how your component will be needed ... if is so, then I can 
take it from here, because then is about learning how the contract between 
the container and the components works ... isn't ...

and one more question? is jetty part of the whole thing or is just a 
standard component you have to include?

Saludos
maquina


>From: J Aaron Farr <[email protected]>
>Reply-To: "Avalon framework users" <[email protected]>
>To: Avalon framework users <[email protected]>
>Subject: Re: context
>Date: Wed, 24 Nov 2004 09:44:42 -0500
>
>Samuel Ferrer wrote:
>>
>>Thank you very much ...
>>
>>I wander ... that mapping is a very simple class like a Hashtable isn't 
>>... no need for anything else?
>
>Under the covers, yes, it's a Map implementation.  But the Context is 
>read-only for components.
>
>>How does the container publish the properties ... via a documentation 
>>obtained some how ... ex like is done in web services?
>
>For existing Avalon containers, the properties are only available via the 
>Context object, though one could write a JNDI adaptor.  Here's a typical 
>example:
>
>
>public class MyComponent
>     extends AbstractLogEnabled
>     implements MyService, Contextualizeable
>{
>
>    public MyService(){
>    }
>
>    public void contextualize(Context context)
>       throws ContextException
>    {
>       File home = (File) context.get("impl.workDir");
>       ...
>    }
>
>    ...
>
>}
>
>This example would work in Excalibur Fortress.  Getting context objects is 
>very similar to getting other components via the ServiceManager. However, 
>since there is no standard set of context entries, you need to know what 
>container you plan to use and program accordingly. Consequently, using the 
>context object is often discouraged because it ties you to a container 
>implementation.
>
>jaaron
>
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