[jboss-dev-forums] [Design of POJO Server] - Re: .sar showing up multiple times

[adrian@jboss.org]

These are components of the deployment.
e.g. 
a sar contains many mbeans
an ejb-jar contains many ejbs

The idea is that you can write a deployer that deals with
one component at a time rather than having to do the complicated error handling (of rolling back previous components) if it fails part way through
in every deployer.
In the JBoss4 deployers, this is mostly broken and where it even exists
it is often inconsistent and contains different bugs in different deployers.

Depending on what you want to process there is an
isTopLevel() and isComponent() available on the DeploymentContext
which need to be exposed as part of the strucure query stuff that
needs adding for the DeploymentUnit.


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