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https://issues.jboss.org/browse/CDI-129?page=com.atlassian.jira.plugin.sy...
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Mark Struberg commented on CDI-129:
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You are right, if the EE container does not implement the suggestions of the first
paragraph of JSR-316 EE.8.3.1 but decides to use reduced or no classloader isolation at
all then 'non-portable behaviour occurs'.
I personally consider this an insane scenario, and the EE-7 spec should find very clear
words that this is crap and should only be used in exceptional cases, e.g. for backward
compatibility with old projects ;)
For the (web) @ApplicationScoped only applying to one webapp - this is also possible if
there is no classloader isolation at all. For handlig this case in OpenWebBeans, we are
just setting the 'one' @ApplicationScoped for a certain request to a ThreadLocal
(See OWBs WebContextsService - we are doing this via a RequestListener subsequently via
initRequestContext() ). Remember that we have plugable lifecycle handlers in OWB. This
would not be necessary if there is a well defined ClassLoader isolation in place (as
suggested - we could then just use the ContextClassLoader in this case) but this works
really well with very old WebLogic servers in a big swiss bank already ;)
introduce @EnterpriseScoped (or similar)
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Key: CDI-129
URL:
https://issues.jboss.org/browse/CDI-129
Project: CDI Specification Issues
Issue Type: Feature Request
Components: Contexts
Affects Versions: 1.0
Reporter: Mark Struberg
Fix For: 1.1 (Proposed)
Since @ApplicationScoped currently is defined in 6.5.2 as to be 'like in the Servlet
specification' this means that you will get a new instance for every WebApplication
(WAR file).
There is currently no specified CDI scope for providing a single shared instance for a
whole EAR.
We could (ab-)use @Singleton for that, but this is currently not well defined at all.
Alternatively we could introduce an own new annotation like @EnterpriseScoped or likes.
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