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From "Peter H (JIRA)" <j...@apache.org>
Subject [jira] Commented: (GERONIMO-556) Optional resource refs
Date Fri, 08 Jan 2010 19:35:54 GMT

    [ https://issues.apache.org/jira/browse/GERONIMO-556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798150#action_12798150
] 

Peter H commented on GERONIMO-556:
----------------------------------

Actually it would be useful for applications which are supposed to be deployed to various
application servers.
For example we use couple of CommonJ WorkManagers which can be used on WebSphere or WebLogic.
For them Geronimo complains during deployment about inability to resolve their resource references
and refuses to deploy the application.

However our application can be externally configured to not rely on the CommonJ WorkManagers
so it's not an issue for us at all.

JBoss at least deploys it with some dummy entries in jboss-web.xml, but so far I didn't manage
to get it deployed on Geronimo without having to comment out all the affected resource references
in web.xml

At least some non-strict mode which would just give warnings instead of refusing to deploy
completely would be great.
Something like Strict Manifest Classpath processing mode which can be altered by the -DXorg.apache.geronimo.deployment.LenientMFCP
option.

> Optional resource refs
> ----------------------
>
>                 Key: GERONIMO-556
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-556
>             Project: Geronimo
>          Issue Type: New Feature
>          Components: deployment
>            Reporter: David Jencks
>            Assignee: David Jencks
>             Fix For: Wish List
>
>
> Right now, all resource refs (and other jndi entries) specified in a spec-dd must be
resolved during deployment or building the configuration will fail.  It's possible that some
resource refs are optional and that the app can function to  some extent with them missing.
> We could support this by including an optional "optional" marker in the geronimo plan.
The simplest implementation would attempt to resolve the ref to an object name present during
deployment, and use it if the name is found, and bind nothing if the name is not found.  Then
the app would get a naming exception at runtime if it tried to look up the missing resource.
> We should decide what should happen when the entire target object name is supplied. 
We could use it to bind a reference, or only bind a reference if the gbean is present at deploy-time.

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