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Saturday Sep 08, 2007

Java EE 5 Architekturen book is finally available, 21 Observers in p4j5

The book "Java EE 5 Architekturen" is available from amazon.de - so is really out now :-).
The p4j5 community is still growing. Only last week I approved 3 observers - now we are 22. I get many direct questions and suggestions (some really interesting) directly per email regarding patterns, and architectures - please use the p4j5 forum/mailinglist for discussion as well. 

Posted at 11:04AM Sep 08, 2007 by Adam Bien in Publications  |  Kommentare[0]


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Number of posts: 752
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On Java FX at java.sun.com
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...the last 10 comments

Michael Bien wrote:

according to the Oracle JEE techcast some concurrency JSRs might be resurrected for JEE7 ;)



wolfgang wrote:

Hi Adam,

I live near to Bonn. Is it possible if I could join and participate as a listener?

Thanks
Wolfgang



Adam Bien wrote:

@Michael,

1. use @Asynchronous (very similar)
2. Use JCA -> even closer
3. Wrap Executor service and inject it as CCI - very[...]

Michael Bien wrote:

all we need is a standardized 'ThreadPoolManager' returning the appserver's implementation of an ExecutorService ;)



Adam Bien wrote:

@ALR,

interesting pointer. But in either way it wouldn't be portable. A very lean JCA would also do the job in portable way.

Ex[...]

Andrew Lee Rubinger wrote:

Note that there are mechanisms around this. In JBossAS for instance, the Application Server makes available a project called "JBoss Threads&[...]

Andrew Lee Rubinger wrote:

Adam:

Because @Singleton lets you manage your concurrency policy, but not the Thread itself. Imagine the app developer starts a non-daem[...]

Adam Bien wrote:

@ALR,

absolutely no-no. Never used threads so far in the EJBs. But why not allow them in @Singleton BMC.Bean?

thanks for your c[...]

Andrew Lee Rubinger wrote:

Interesting discussion.

But to me when you use a container, you surrender the right to runtime services like threading. The idea of EJB [...]

Adam Bien wrote:

@Michael,

you can absolutely do that - in Servlets, CDI and in JCA. The EJB 3.1 spec does not allow it formally - but it works in most ca[...]

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