[jboss-dev-forums] [JBoss AS7 Development] - Re: Multiple phase deployments

[Brian Stansberry]

Brian Stansberry [http://community.jboss.org/people/bstansberry%40jboss.com] created the discussion

"Re: Multiple phase deployments"

To view the discussion, visit: http://community.jboss.org/message/566364#566364

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Been chatting a bit with Thomas. The part that wasn't clear to me is that the "set of bundles" he describes is really a number of independent deployment units. Any DeploymentUnitProcessor would see each deployment unit as an independent thing. He was seeing a DeploymentPlan as a way of processing them as a unit.

Currently, all the deployments in a plan are installed as part of the same batch. So his ThreadLocal approach lets him use a TL to detect and count up all the deployments in a batch, and then use a listener on each service to track when they are all started, moving on to his #2 step at that point.

We talked about instead adding a notion of a DeploymentSet. All updates associated with a DeploymentPlan would be associated with the same DeploymentSet. The DeploymentSet could be attached to the DeploymentUnitContext for each deployment, and a callback triggered when the update for each deployment in the set has been applied.

This is similar to some things that would happen with ear deployments; it's just that instead of using packaging to determine what comprises a set of deployments, we'd be using the fact that they are in the same DeploymentPlan.

This can use some further digestion, but it's intriguing.
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