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Posted to dev@myfaces.apache.org by "David Jencks (JIRA)" <de...@myfaces.apache.org> on 2007/03/12 16:44:09 UTC
[jira] Created: (MYFACES-1559) Proposal for dependency injection
and lifecycle method handling
Proposal for dependency injection and lifecycle method handling
---------------------------------------------------------------
Key: MYFACES-1559
URL: https://issues.apache.org/jira/browse/MYFACES-1559
Project: MyFaces Core
Issue Type: New Feature
Components: General
Affects Versions: 1.2.0-SNAPSHOT
Reporter: David Jencks
Fix For: 1.2.0-SNAPSHOT
I'm opening this jira as a convenient place to put code samples in support of discussion on the dev list
Based on my experience implementing dependency injection and lifecyle methods in the geronimo app client container and the geronimo-jetty integration, and inspired by the openejb3 code for this purpose, I'd like to propose that MyFaces consider using an interface similar to this for object creation and shutdown:
public interface LifecycleProvider {
/**
* Create an object of the class with the supplied name, inject dependencies as appropriate,
* and call a postContruct method as appropriate.
*
* @param className name of the class of the desired object
* @return a fully constructed, dependency-injected, and initialized object.
*/
Object newInstance(String className);
/**
* Take whatever steps are needed to shut down the object, including calling a preDestroy method.
*
* @param o object to shut down.
*/
void destroyInstance(Object o);
}
It's easy to write an adapter between this and the AnnotationProcessor interface currently implemented.
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[jira] Commented: (MYFACES-1559) Proposal for dependency injection
and lifecycle method handling
Posted by "David Jencks (JIRA)" <de...@myfaces.apache.org>.
[ https://issues.apache.org/jira/browse/MYFACES-1559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12481195 ]
David Jencks commented on MYFACES-1559:
---------------------------------------
Thanks for implementing this, I've hooked it up to geronimo and it seems to be working great!
> Proposal for dependency injection and lifecycle method handling
> ---------------------------------------------------------------
>
> Key: MYFACES-1559
> URL: https://issues.apache.org/jira/browse/MYFACES-1559
> Project: MyFaces Core
> Issue Type: New Feature
> Components: General
> Affects Versions: 1.2.0-SNAPSHOT
> Reporter: David Jencks
> Assigned To: Bernd Bohmann
> Fix For: 1.2.0-SNAPSHOT
>
> Attachments: MYFACES-1559-1.patch, MYFACES-1559-2.patch, MYFACES-1559-3.patch
>
>
> I'm opening this jira as a convenient place to put code samples in support of discussion on the dev list
> Based on my experience implementing dependency injection and lifecyle methods in the geronimo app client container and the geronimo-jetty integration, and inspired by the openejb3 code for this purpose, I'd like to propose that MyFaces consider using an interface similar to this for object creation and shutdown:
> public interface LifecycleProvider {
> /**
> * Create an object of the class with the supplied name, inject dependencies as appropriate,
> * and call a postContruct method as appropriate.
> *
> * @param className name of the class of the desired object
> * @return a fully constructed, dependency-injected, and initialized object.
> */
> Object newInstance(String className);
> /**
> * Take whatever steps are needed to shut down the object, including calling a preDestroy method.
> *
> * @param o object to shut down.
> */
> void destroyInstance(Object o);
> }
> It's easy to write an adapter between this and the AnnotationProcessor interface currently implemented.
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