March 2010 - jboss-user - Jboss List Archives

[JBoss Messaging] New message: "Re: Receiving message instanceof org.jboss.jms.message.ObjectMessageProxy in MDB"

by Peter Johnson

User development, A new message was posted in the thread "Receiving message instanceof org.jboss.jms.message.ObjectMessageProxy in MDB": http://community.jboss.org/message/529710#529710 Author : Peter Johnson Profile : http://community.jboss.org/people/peterj Message: -------------------------------------------------------------- javax.jms.ObjectMessage is an interface. *org.jboss.jms.message.ObjectMessageProxy* implements that interface. Thus you can cast the received object to javax.jms.ObjectMessage without any problems. By the way, if you ran your same code with another messaging system and looked at the type, you would find that the type is specific to that messaging system. And you will find that that type also implements javax.jms.ObjectMessage. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529710#529710

16 years, 1 month

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[jBPM] New message: "Re: JBPM and WSDL"

by M Hakimi

User development, A new message was posted in the thread "JBPM and WSDL": http://community.jboss.org/message/529709#529709 Author : M Hakimi Profile : http://community.jboss.org/people/maro1114 Message: -------------------------------------------------------------- many thanks... do you know how would I package it? Should I include my WS in a jar and include it in the classpath? -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529709#529709

16 years, 1 month

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[Performance Tuning] New message: "Re: java.lang.OutOfMemoryError: PermGen space"

by Peter Johnson

User development, A new message was posted in the thread "java.lang.OutOfMemoryError: PermGen space": http://community.jboss.org/message/529708#529708 Author : Peter Johnson Profile : http://community.jboss.org/people/peterj Message: -------------------------------------------------------------- Alexander, please do not ask questions in a private message. You should have asked it here so that everyone can benefit from the discussion. The article you referenced,\ http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/memleaks.html#g... talks about intered strings. That is literal strings defined or used in your application. If you create a new string that does not match an intered string, the new string is allocated in the heap, not in the permgen. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529708#529708

16 years, 1 month

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[JBoss Tools] New message: "Re: Support for JPA 2.0 resp. Hibernate 3.5"

by Denis Golovin

User development, A new message was posted in the thread "Support for JPA 2.0 resp. Hibernate 3.5": http://community.jboss.org/message/529707#529707 Author : Denis Golovin Profile : http://community.jboss.org/people/dgolovin Message: -------------------------------------------------------------- Do you have any exceptions in Eclipse "Error Log" View? -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529707#529707

16 years, 1 month

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[JBoss Tools] New message: "Re: working with XDoclet at JbossTools 3.0.3GA"

by Denis Golovin

User development, A new message was posted in the thread "working with XDoclet at JbossTools 3.0.3GA": http://community.jboss.org/message/529705#529705 Author : Denis Golovin Profile : http://community.jboss.org/people/dgolovin Message: -------------------------------------------------------------- Yep, and I have them compiled locally, just need to restore several classes from ide.core plugin to be able to run it, I'll do that eventually. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529705#529705

16 years, 1 month

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[JBoss Tools] New message: "Support for JPA 2.0 resp. Hibernate 3.5"

by Juergen Zimmermann

User development, A new message was posted in the thread "Support for JPA 2.0 resp. Hibernate 3.5": http://community.jboss.org/message/529704#529704 Author : Juergen Zimmermann Profile : http://community.jboss.org/people/Juergen.Zimmermann Message: -------------------------------------------------------------- When will JPA 2.0 resp. Hibernate 3.5 be supported by Hibernate Console? With 3.3.0...-CR2 these features are causing trouble: * Composite primary keys can be created in a different (and more readable) way * Collection, List etc. of primitive types like Integer * Queries using the TYPE keyword When I try to use features of JPA 2.0 then the Hibernate SessionFactory cannot be created -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529704#529704

16 years, 1 month

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[JBoss Messaging] New message: "Receiving message instanceof org.jboss.jms.message.ObjectMessageProxy in MDB"

by slekha s

User development, A new message was posted in the thread "Receiving message instanceof org.jboss.jms.message.ObjectMessageProxy in MDB": http://community.jboss.org/message/529703#529703 Author : slekha s Profile : http://community.jboss.org/people/slekha Message: -------------------------------------------------------------- Hi, In my application,a JMS client (using JBOSS client jars) publishes messages of Object type to a queue configured on JBOSS 5.1.0 GA . The message received by JBOSS is of type *org.jboss.jms.message.ObjectMessageProxy* and *NOT* *javax.jms.ObjectMessage* . Hence in MDB , I am having to check +if(message instanceof org.jboss.jms.message.ObjectMessageProxy){}+ Since the application is required to be portable to other application servers , it is desirable to eliminate JBOSS pacakge dependecies.Instead of the above check , I would like to have**+if+ ** **+(message *instanceof*+ +ObjectMessage){}+ Please let me know how to address this. Thankyou! -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529703#529703

16 years, 1 month

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[jBPM] New message: "Re: Creating tasks in a loop with JBPM 4.3"

by Maciej Swiderski

User development, A new message was posted in the thread "Creating tasks in a loop with JBPM 4.3": http://community.jboss.org/message/529702#529702 Author : Maciej Swiderski Profile : http://community.jboss.org/people/swiderski.maciej Message: -------------------------------------------------------------- > > hmmm..ok...that's not the thing i want to hear ;-) Just don't take my opinion as final word, it is just that is what I think/know at the moment. Perhaps someone else can give another hints. It would be good if you attach the project, it is much easier to take a look at diagram than read xml... /Maciej -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529702#529702

16 years, 1 month

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[JBoss Cache] New message: "Re: my jboss cache is not replicating"

by robert walker

User development, A new message was posted in the thread "my jboss cache is not replicating": http://community.jboss.org/message/529701#529701 Author : robert walker Profile : http://community.jboss.org/people/robertwalker Message: -------------------------------------------------------------- dang it, i found it i changed the code around a bunch of times trying to get it to work, so going to post a working example of ch12 jboss in action with the already implemented clustering described in the book. VERY educational if you want to learn about this technology. I added to the example such that now a cache exists and is being replicated amongst the node1 and node2 jboss instances running basically I needed a cache.put(cersFqn, "numbersList", al); at the end of public void printCount(int countNumber) method, it seems to push it to replication I had thought just changing the ArrayList located at tree node would do it, but it needs this additional step which i guess makes sense. I am giddy i got this working, goingto use it in my production application where I track logged on users in a web app ================================= package com.manning.jbia; import javax.ejb.Stateless; import org.jboss.ejb3.annotation.Clustered; import javax.annotation.PostConstruct; import javax.annotation.PreDestroy; import org.apache.log4j.Logger; import org.jboss.cache.Cache; import org.jboss.cache.CacheFactory; import org.jboss.cache.DefaultCacheFactory; import org.jboss.cache.Fqn; import org.jboss.cache.Node; import java.util.ArrayList; import java.util.Iterator; import org.jboss.cache.config.Configuration; import java.util.Set; @Stateless @Clustered public class CounterBean implements Counter { public static Cache cache = null; public static Node rootNode = null; public static Node numbersNode = null; // JBoss Cache stores data in a tree structure. // All nodes in the tree structure are identified by Fqn objects. public static final Fqn cersFqn = Fqn.fromString("myNumbers"); public static Cache getCache() { if(cache==null) { initializeCache(); } return cache; } public static void initializeCache() { try { if(cache==null) { Configuration config = new Configuration(); CacheFactory factory = new DefaultCacheFactory(); config.setCacheMode(org.jboss.cache.config.Configuration.CacheMode.REPL_ASYNC); cache = factory.createCache(config); cache.start(); } rootNode = cache.getRoot(); if(rootNode.dataSize()==0) { // Create a new Node numbersNode = rootNode.addChild(cersFqn); ArrayList arrayList = (ArrayList)numbersNode.get("numbersList"); if(arrayList==null) { arrayList = new ArrayList(); } // let's store some data in the node numbersNode.put("numbersList", arrayList); } else { load(cersFqn); } } catch (Exception e) { e.printStackTrace(); } } public void printCount(int countNumber) { System.out.println("\n"); Cache myCache = CounterBean.getCache(); Node numbersNode = myCache.getRoot().getChild(cersFqn); ArrayList al = (ArrayList)numbersNode.get("numbersList"); al.add(countNumber); cache.put(cersFqn, "numbersList", al); System.out.println("******** printCount(" +countNumber +") ****************"); } public void printCache() { System.out.println(); System.out.println(); //load(cersFqn); Node rootNode = getCache().getRoot(); Node numbersNode = rootNode.getChild(cersFqn); ArrayList al = (ArrayList)numbersNode.get("numbersList"); Iterator alIterator = al.iterator(); System.out.print("printCache() : numbersNode=["); while(alIterator.hasNext()) { System.out.print(alIterator.next() +" "); } System.out.println("]"); } private static void load(Fqn fqn) { try { // this will cause the cache to load the relevant node from a cache loader. cache.getRoot().getChild(fqn); } catch (Exception e) { e.printStackTrace(); } } @PostConstruct public void initialize () { // Initialize here objects which will be used // by the session bean System.out.println("CounterBean initialize()"); } @PreDestroy public void destroyBean() { // Free here resources acquired by the session bean System.out.println("CounterBean destroyBean()"); } } ========================== package com.manning.jbia; import javax.ejb.Remote; @Remote public interface Counter { public void printCount(int messageNumber); public void printCache(); } =============================== package com.manning.jbia; import java.util.Hashtable; import javax.naming.Context; import javax.naming.InitialContext; import org.jboss.cache.config.ConfigurationException; public class Client { public static void main(String[] args) throws Exception { Hashtable<String, String> properties = new Hashtable<String, String>(); properties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory"); // properties.put(Context.URL_PKG_PREFIXES, "org.jboss.naming"); properties.put(Context.PROVIDER_URL, "192.168.1.140:1100,192.168.1.141:1100"); InitialContext ctx = new InitialContext(properties); Counter s = (Counter) ctx.lookup("CounterBean/remote"); System.out.println("Sending 0-9 to server"); for (int i = 0; i < 10; i++) { s.printCount(i); Thread.sleep(1000); } System.out.println("Sending request to print cache"); s.printCache(); } } ============================ and a stand alone app to request what is currently in the cache from whatever node services the request package com.manning.jbia; import java.util.Hashtable; import javax.naming.Context; import javax.naming.InitialContext; import org.jboss.cache.config.ConfigurationException; public class PrintCache { public static void main(String[] args) throws Exception { Hashtable<String, String> properties = new Hashtable<String, String>(); properties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory"); properties.put(Context.PROVIDER_URL, "192.168.1.140:1100,192.168.1.141:1100"); InitialContext ctx = new InitialContext(properties); Counter s = (Counter) ctx.lookup("CounterBean/remote"); System.out.println("Sending request to print cache"); s.printCache(); } } -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529701#529701

16 years, 1 month

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[JBoss Cache] New message: "Re: is this a good use for jboss cache"

by robert walker

User development, A new message was posted in the thread "is this a good use for jboss cache": http://community.jboss.org/message/529700#529700 Author : robert walker Profile : http://community.jboss.org/people/robertwalker Message: -------------------------------------------------------------- excellent points and great idea about the showing all logged on users and ones logged onto a particular node thanks -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/529700#529700

16 years, 1 month

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jboss-user March 2010