October 2006 - jboss-user - Jboss List Archives

[EJB 3.0] - Re: How to lazily load collections?

by ALRubinger

Sorry; I assumed you were trying to iterate over the collection immediately after calling "refresh". Where is the code generating the error? Not in that SLSB snippit posted, but in the JSP? The List returned from the EntityManager will be a Hibernate Collections class with a reference to the current session. If you're just looking to get a "snapshot" of the current data in there at the time its requested, you can create a new List, put all of the items in the Entity bean's version in it, and safely return your list for use outside of the session/transaction. Assuming you're getting the error in the JSP: public List<TdmAlerts> getAlertsFromEntity(MyEntity entity) { | entityManager.refresh(entity); | List<TdmAlerts> tdmAlerts = new ArrayList<TdmAlerts>(); | tdmAlerts.addAll(entity.getTdmAlerts()); | return tdmAlerts; | } ...I think should do it. Or use a TO/VO. Manually closing is done by something like: ((HibernateEntityManager)entityManager.getDelegate()).getSession().close(); ... or similar S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978631#3978631 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978631

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[Installation, Configuration & Deployment] - Re: JBOSS Memory Utilization

by hunk

I am asking for a freeware , opensource way ! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978630#3978630 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978630

19 years, 8 months

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[Installation, Configuration & Deployment] - JBOSS Memory Utilization

by hunk

Does anybody know how to check for memory utilization of JBOSS 4 on Solaris box. Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978629#3978629 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978629

19 years, 8 months

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[EJB 3.0] - Re: Local and Remote interfaces required in EJB3

by esfahan

Sure, I understand that the client only gets a proxy to some interfaces and the bean implementation has of course to stay on the server. What I don't understand is why this interfaces could not be generated dynamically. For example using some imaginary annoations here: @Stateful | @Local (interface="FooLocal") | public class FooBean | { | @LocalMethod | public void foo(); | | @LocalMethod | public void bar(); | } Wouldn't this be enough information for creating the client interface: public interface FooLocal | { | public void foo(); | public void bar(); | } Given you would stick to some sort of naming standard you could provide even default values for the names of the local and remote interfaces. Of course FooBean does not implement an interface now anymore, but invocations could be handled by some sort of dynamic proxy, right? --Hardy View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978628#3978628 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978628

19 years, 8 months

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[JBoss Portal] - Re: getPreferences with JSF portlet

by thomas.heute＠jboss.com

Add the JSF API to Eclipse classpath then... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978627#3978627 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978627

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[EJB 3.0] - Re: How to lazily load collections?

by michael.litherland

Hi, Thanks for the reply. I've tried two ways, most recently I'm doing this in an EJB stateless session bean: | public List<TdmAlerts> getAlertsFromEntity(MyEntity entity) { | entityManager.refresh(entity); | return entity.getTdmAlerts(); | } | Previously I was just using this same bean to return the entity after doing an entityManager.find and within my JSF application wrapping the List returned from the entity in a ListDataModel for display in the JSP. This worked before switching to LAZY. Also, I'm not closing the session and I can't even find in the java doc how to do such a thing if I wanted to! I've certainly hunted around for some clues on how to work within the session to bypass this problem. Thanks again for the help. Mike View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978625#3978625 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978625

19 years, 8 months

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[Persistence, JBoss/CMP, Hibernate, Database] - Re: Entity Bean used to work. But now it is not deployable a

by ALRubinger

Looks like ejb3-persistence.jar has made its way out of your classpath. Belongs in $JBOSS_HOME/server/[instanceName]/lib. Can also be found in $JBOSS_HOME/client. S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978624#3978624 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978624

19 years, 8 months

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[EJB 3.0] - Re: How to lazily load collections?

by ALRubinger

Looks like you're trying to access "tdmAlerts" after the transaction has ended, or after manuall closing the session held by the Entitymanager. This happens pretty frequently if you're sending the object to a remote client or storing to/retrieving from a session (HTTP, SFSB, etc), for instance. Where are you calling "refresh"? S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978622#3978622 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978622

19 years, 8 months

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[EJB 3.0] - Re: Local and Remote interfaces required in EJB3

by ALRubinger

The EJB3 spec eliminated the "Home" interfaces for obtaining a reference to a bean's proxy invoker. The reason that the Remote and Local interfaces are required is because clients of an EJB3 Bean obtain a reference to (and invoke methods on) this proxy object, generated by the container, which implements the Remote or Local interface as configured. The actual implementation instances reside on the server, and also implement the Local/Remote interfaces. S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978620#3978620 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978620

19 years, 8 months

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[JBoss Messaging] - Re: JBoss Messaging server cannot connect to Remote Messagin

by OliverHrdz

So according to the roadmap, 1.2 final will out Feb. '07, which is when we will get a mutliplexing protocol in Messaging? My project currently does not need a clustered server. Can we apply an updated Remoting library in 1.0.1? From the release notes, Remoting 2.0.0 implements "org.jboss.remoting.transport.sslmultiplex", which is exactly what we need. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978619#3978619 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3978619

19 years, 8 months

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jboss-user October 2006