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Date: Mon, 16 Feb 2004 17:00:03 +0100 (MET)
From: Christian Siefkes <siefkes@mi.fu-berlin.de>
Reply-To: Christian Siefkes <christian@siefkes.net>
To: Eric Pugh <epugh@upstate.com>
cc: 'Jakarta Commons Developers List' <commons-dev@jakarta.apache.org>
Subject: RE: [configuration] Refactor AbstractConfiguration(Configuration
 defaults)
In-Reply-To: <004d01c3f49b$f6a85100$657ba8c0@IQUITOS>
Message-ID: <Pine.LNX.4.44.0402161635220.31042-100000@elch.inf.fu-berlin.de>
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Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi,

On Mon, 16 Feb 2004, Eric Pugh wrote:
> True..  But, you could grab the propertiesConfiguration out of the composite
> and save it..  I think the composite should be looked at as a read only
> "thing" because saving has too many odd ramifications..
>
> And, at least, the one user who mentioned the
> AbstractConfiguration(Configuration conf) is actually using a
> CompositeConfig anyway, and needs that exact same problem solved..

Well, as long as CompositeConfigs are read-only/in-memory-only, I don't
think they can fully substitute chainable defaults. But of course, adding
a save() method to CompositeConfig doesn't make sense, because they don't
have a native format.

Maybe a CompositeConfiguration.flatten(Configuration out) method that adds
all key/value pairs to the "out" configuration? This would allow
flattening a Composite to BaseProperties or XML/DOM4J or any other format
and storing the flattened configuration...

Bye
	Christian

PS. Please cc me as I'm not on the list.

------------ Christian Siefkes -----------------------------------------
|     Email: christian@siefkes.net    |     Web: http://www.siefkes.net/
|  Graduate School in Distributed IS: http://www.wiwi.hu-berlin.de/gkvi/
-------------------- Offline P2P: http://www.leihnetzwerk.de/ ----------
More than any time in history, mankind now faces a crossroads. One path
leads to despair and utter hopelessness, the other to total extinction.
Let us pray that we have the wisdom to choose correctly.
          -- Woody Allen


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