[seam-dev] Switching to a requirement-orientated deployment system

[Pete Muir]

I just committed some queued changes I had to switch us from a  
resource orientated (inspect each scanned file/class; each file/class  
gets passed to each deployer which can do what it wants with it) to  
requirement orientated (expose requirements and the scanner hands a  
list of matching files/classes to the deployer). This is good because  
it allows us to delegate resource/class discovery to the container  
(JBoss 5).

I've tested all the deployers I know about (including the wiki), and  
the testsuite passes; however there may be bugs, please assign them to  
me in JIRA if they come up.

So, this requires us to produce a stable SPI for exposing these  
requirements; so far it's pretty simple, you can require files that  
have a certain suffix (e.g. .jpdl.xml) or classes with any of the  
specified annotations. If you need to further processing, you can call  
the postProcess() hook to further trim down the list. If anyone would  
like to add extra requirements, then we need to do that before  
2.1.1.GA, so please raise issues in JIRA.

You can find all this in trunk, inside org.jboss.seam.deployment, some  
of it javadoc'd ;-)

Ales, I added SeamResourceDiscovery for you to jboss-seam-int as an  
example of how to get requirements from seam, and how to set back the  
discovered classes/files.