modify Configuration object

[Xiaowei Jiang <xi...@stratify.com>]

Currently, Configuration interface only define accessor methods and doesn't
allow you to modify it. I guess this design decision was made because that't
the minimal interface needed to use Configuration. However, in real life,
it's sometimes necessary for a component manager to modify a Configuration
object a little bit before pass it to a component. Downcasting it to
DefaultConfiguration would lose the whole point of this interface
abstraction. One possible clean solution is to make a copy of this
Configuration to a DefaultConfiguration object and modify the resulting
DefaultConfiguration object. So I suggest add a static method copyFrom in
class DefaultConfiguration:

class DefaultConfiguration {
	public static DefaultConfiguration copyFrom(Configuration
configuration);
}

In this way, user can modify Configuration object easily on the copy. I
would like to hear others' opinion on this.

xiaowei



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Re: modify Configuration object

[Peter Donald <pe...@apache.org>]

On Wed, 1 May 2002 00:59, Xiaowei Jiang wrote:
> class DefaultConfiguration {
> 	public static DefaultConfiguration copyFrom(Configuration
> configuration);
> }
>
> In this way, user can modify Configuration object easily on the copy. I
> would like to hear others' opinion on this.

Sounds good - wanna supply a patch ? :)

-- 
Cheers,

Peter Donald


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