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From Carsten Ziegeler <>
Subject Re: Adding a ProcessingPhaseListener to a form?
Date Fri, 19 May 2006 07:51:46 GMT
Simone Gianni wrote:
> Hi Carsten,
> if you use a java listener (in all cocoon forms, not just for
> ProcessingPhaseListener) the class
> o.a.c.forms.event.impl.JavaClassWidgetListenerBuilder is responsible for
> setting it up. If calls a LyfecycleHelper..setupComponent(listener,
> null, null, manager, null);
> AFAIK, since only the instance and the manager are passed in, i suppose
> that if you implement Configurable in your java class you will not
> obtain a valid Configuration object.
> It should not be difficult (since the w3c Element is available) to pass
> is wrapped in a Configuration to the LifecycleHelper ... trying right now.
> Ok, in JavaClassWidgetBuilder is should be enought to add the
> Configuration conf = ConfigurationUtil.toConfiguration(element); line
> and then pass it to the LifecycleHelper.
> Line 54 :
>         Object listener = ClassUtils.newInstance(name);
>         if (listenerClass.isAssignableFrom(listener.getClass())) {
>             Configuration conf = ConfigurationUtil.toConfiguration(element);
>             LifecycleHelper.setupComponent(listener, null, null,
> manager, conf);
>             return (WidgetListener)listener;
> Don't have time right now to test and eventually commit this, but it's
> worth doing it : it will enable every java listener to implement the
> Configurable interface and receive configuration from the definition.
> Will have time to do this this evening, unless you do it before me :)
Thanks for the info, Simone, I add the code and also added support for
LogEnabled and Contextualizable, so a listener can now be a full Avalon
component :) I haven't tested it yet....

Carsten Ziegeler - Open Source Group, S&N AG

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