September 2006 - jboss-user - Jboss List Archives

[EJB 3.0] - Re: entityManager.find() returns null

by ALRubinger

Some of my coworkers have reported similar behaviour of a sporadic nature...simple calls to EntityManager.find(Class,id) return null when the object is clearly in the DB. They've also stated that using EntityManager.createQuery("SELECT obj FROM ClassName obj WHERE obj.id=?") will sometimes return the object immediately after the finder fails. Anyone have an easily deployable use case that reliably fails this query? Having problems believing that something as trivial as a "find by id" method has a bug. S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972657#3972657 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972657

19 years, 7 months

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[JBoss Seam] - Re: Problem to submit a form with commandButton

by bagrehc

Thanx petemuir for the hint. there is a conversion error. Now I'll try to discover "where" and fix it. Reginaldo L. Russinholi System Analyst / Developer Sun Certified Java Programmer View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972656#3972656 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972656

19 years, 7 months

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[JBossCache] - Re: how to support custom CacheLoader callbacks to register

by wcooper

Here's what I ended up doing... Since CacheLoader.setCache(TreeCache treeCache) interface method sends in the controlling treeCache instance, I use it to add any additional nodes that should be added to the cache as a result of the initial cache miss. ( When I call my external service to get data, it returns additional data nodes to add to the cache.) As long as I am careful to not use the treeCache to add the node for the original get's Fqn, it works ok. ( Doing that would stick me in a recursive loop. ) I was not sure if there was another intended approach such as a callback to the cache loader interceptor directly, for example. thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972654#3972654 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972654

19 years, 7 months

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[JBoss Seam] - Seam Object in JSP Scriptlet

by skr

Hi, how can i use the seam object in jsp scriplet along with some other java logic (<%........ %>)is it possible to use the seam object in jsp scriplet. I have to use seam object in jsp <% ...."#{SeamObj.myMethod}".... %>. Please help me if you have any !dea. Thanks for your help. Skr View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972653#3972653 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972653

19 years, 7 months

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[EJB 3.0] - Re: entity tutorial with @Id @GeneratedValue(strategy=Genera

by fbadt

Anyone seen this and hopefully have a fix with informix. ver 9.4 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972651#3972651 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972651

19 years, 7 months

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[JBoss Seam] - Re: the database of Seam application

by clockdva

thanks now it works also for other examples (seam-messages, ecc.ecc.) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972648#3972648 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972648

19 years, 7 months

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[Beginners Corner] - Re: EJB 2.0 - SLSB - Lifecycle/class member/thread safe ques

by gladiatornado

Correction, the class member variables in the SLSB are reinitialized in every method. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972647#3972647 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972647

19 years, 7 months

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[JBoss Seam] - Re: One to one doubt

by bsheward

I see "Conversion Error" too in my web page, generated by the <h:messages/> element. I don't see any exceptions at all, no NullPointer or ClassCastExceptions. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972646#3972646 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972646

19 years, 7 months

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[JBoss Messaging] - Re: Programmaticaly create queue

by CoyoteSqrl

One solution you might consider is creating a single queue to handle all the traffic of this dynamic type, then using metadata to distinguish one recipient from another. In this way, you configure a single real queue on the server, but have an infinite number of virtual queues. For extremely high load, this is suboptimal, but for moderate volume should perform with roughly the same characteristics as a dynamic queue solution. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972645#3972645 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972645

19 years, 7 months

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[Beginners Corner] - EJB 2.0 - SLSB - Lifecycle/class member/thread safe question

by gladiatornado

I know that SLSB should not have class member variables. Can someone verify that the following thinking is correct: A client obtains an instance of the SLSB. The client executes a method in the SLSB. After execution the instance is returned to the pool. Question: Can a single instance be obtained by multiple clients at the same time? We had an RMI factory service which returned a new instance of a class for each user. This new instance had member variables. We switched over to SLSBs, but when it was switched over the member variables were not moved into the methods. There is a call at the begining of every method that initializes these methods. We are planning on moving all of the class members into the method, but in the short term is it safe to assume that only one instance will be executed per user? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972642#3972642 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972642

19 years, 7 months

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jboss-user September 2006