Support Forums: Message List - Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com Most recent forum messages en Jive Forums Silver 5.5.30 (www.jivesoftware.com) Sat, 25 May 2013 13:13:20 -0400 read/write Static data a real problem http://www.theserverside.com/discussions/thread.tss?thread_id=23012
If you have read/write static data accessed by multiple threads (i.e. from different transactions) you need to...]]> Tue, 06 Jul 2004 14:17:06 -0400 Tue, 06 Jul 2004 14:17:06 -0400 Tue, 06 Jul 2004 14:17:06 -0400 Jul 6, 2004 Damon Feldman 0 Singletons are an implementation detail: users shouldn't care http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Tue, 30 Dec 2003 21:48:45 -0500 Tue, 30 Dec 2003 21:48:45 -0500 Tue, 30 Dec 2003 21:48:45 -0500 Dec 30, 2003 Sean Broadley 0 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Ironically enough, the original EJB spec was intended to allow "coding services for dummies".......]]> Tue, 30 Dec 2003 21:28:37 -0500 Tue, 30 Dec 2003 21:28:37 -0500 Tue, 30 Dec 2003 21:28:37 -0500 Dec 30, 2003 Sean Broadley 0 new threads issues http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Some app servers store context information in thread local. If you spin up a new >thread, it has no context, and thus cannot use J2EE APIs implemented by that >server....]]> Fri, 26 Dec 2003 18:39:47 -0500 Fri, 26 Dec 2003 18:39:47 -0500 Fri, 26 Dec 2003 18:39:47 -0500 Dec 26, 2003 thoff thoff 0 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Fri, 26 Dec 2003 13:05:58 -0500 Fri, 26 Dec 2003 13:05:58 -0500 Fri, 26 Dec 2003 13:05:58 -0500 Dec 26, 2003 Gal Binyamini 0 new threads issues http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Thread local is always shared amongst applications....]]> Fri, 26 Dec 2003 12:40:00 -0500 Fri, 26 Dec 2003 12:40:00 -0500 Fri, 26 Dec 2003 12:40:00 -0500 Dec 26, 2003 Cameron Purdy 1 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 It's never owned by just one app, so that's not a
reason to limit threading.]]> Fri, 26 Dec 2003 12:01:07 -0500 Fri, 26 Dec 2003 12:01:07 -0500 Fri, 26 Dec 2003 12:01:07 -0500 Dec 26, 2003 thoff thoff 2 singletons http://www.theserverside.com/discussions/thread.tss?thread_id=23012 The problem with the static field approach is that there are only two states: null and non-null. Bob's scenario will only work if the non-null state is always valid. It won't work if the value can become stale over time...]]> Fri, 26 Dec 2003 11:31:55 -0500 Fri, 26 Dec 2003 11:31:55 -0500 Fri, 26 Dec 2003 11:31:55 -0500 Dec 26, 2003 Cameron Purdy 0 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Fri, 26 Dec 2003 05:11:18 -0500 Fri, 26 Dec 2003 05:11:18 -0500 Fri, 26 Dec 2003 05:11:18 -0500 Dec 26, 2003 Robert Boothby 0 Oops http://www.theserverside.com/discussions/thread.tss?thread_id=23012
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Cedric]]> Fri, 26 Dec 2003 01:34:16 -0500 Fri, 26 Dec 2003 01:34:16 -0500 Fri, 26 Dec 2003 01:34:16 -0500 Dec 26, 2003 Cedric Beust 0 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012
I posted the following remark on my weblog:
...]]> Fri, 26 Dec 2003 01:33:31 -0500 Fri, 26 Dec 2003 01:33:31 -0500 Fri, 26 Dec 2003 01:33:31 -0500 Dec 26, 2003 Cedric Beust 3 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 Thu, 25 Dec 2003 18:53:06 -0500 Thu, 25 Dec 2003 18:53:06 -0500 Thu, 25 Dec 2003 18:53:06 -0500 Dec 25, 2003 Mike Spille 2 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 But then again, one must consider the original intent of the first EJB spec. Ironically enough, the original EJB spec was intended to allow "coding services for dummies" and really only contained SLSB and SSB....]]> Thu, 25 Dec 2003 17:56:25 -0500 Thu, 25 Dec 2003 17:56:25 -0500 Thu, 25 Dec 2003 17:56:25 -0500 Dec 25, 2003 Robert Boothby 3 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 I posted the following remark on my weblog:...]]> Thu, 25 Dec 2003 17:10:25 -0500 Thu, 25 Dec 2003 17:10:25 -0500 Thu, 25 Dec 2003 17:10:25 -0500 Dec 25, 2003 Gal Binyamini 4 Opinion: EJB Limitations. Can you break them? Can you not? http://www.theserverside.com/discussions/thread.tss?thread_id=23012 my weblog:...]]> Thu, 25 Dec 2003 11:29:17 -0500 Thu, 25 Dec 2003 11:29:17 -0500 Thu, 25 Dec 2003 11:29:17 -0500 Dec 25, 2003 Cedric Beust 8