[JBoss-user] [Persistence CMP/JBoss] - findAll method with more than 1000 records
Hi All! My question is about design strategy. I have an Entity Bean, which data I should show to the client in list. I have a finder on that Entity Bean (findAll in home interface). When I have got a collection of entity beans from finder I create a collection of serializable Value Objects, which I return to client in session facade. The problem is the list is very large (more than 1000 record) and elapsed time is about 30-60 sec. and more. Client needs to see in list (for example) records from 1 to 50 or from 50 to 100 e.t.c and How can I limit row number in EJBQL, or I shuold use JDBC calls instead of EJBQL? How can I decrease time of method? Is it effective designed application when I use findAll method everytime when client needs to see a list? Thanks View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3842676#3842676 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3842676 --- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721alloc_id=10040op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Beginners Corner] - JNDI Names for CMP Bean
I have two .jar files which contains EntityBeans whith local interfaces. In jboss.xml I use JNDI names, which corresponds to Bean names, for example: jboss.xml for first .jar file === ejb-nameBeanA/ejb-name local-jndi-nameBeanA/local-jndi-name ... === jboss.xml for second .jar file === ejb-nameBeanB/ejb-name local-jndi-nameBeanB/local-jndi-name ... === But after deployment I see in jmx-conslole the names of my beans like this: jndiName=BeanA,service=EJB jndiName=local/BeanB,service=EJB So, lookup for BeanB is failed. What is the reason? Something wrong with descriptors? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838295#3838295 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838295 --- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - EntityBeans whith local interfaces. JNDI Problem
have two .jar files which contains EntityBeans whith local interfaces. In jboss.xml I use JNDI names, which corresponds to Bean names, for example: jboss.xml for first .jar file === ejb-nameBeanA/ejb-name local-jndi-nameBeanA/local-jndi-name ... === jboss.xml for second .jar file === ejb-nameBeanB/ejb-name local-jndi-nameBeanB/local-jndi-name ... === But after deployment I see in jmx-conslole the names of my beans like this: jndiName=BeanA,service=EJB jndiName=local/BeanB,service=EJB So, lookup for BeanB is failed. What is the reason? Something wrong with descriptors? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838297#3838297 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838297 --- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB/JBoss] - Deploying .ear file on JBOSS-3.0.4 - Problem with DTD
When I try to deploy .ear file on JBoss-3.0.4 server I have an ERROR with message org.jboss.deployment.DeploymentException: External entity not found: http://www.jboss.org/j2ee/dtd/jboss-app_3_0.dtd;.; - nested throwable: (java.net.ConnectException: Connection refused: connect). I use firewall for Internet connection, this is (probably) the reason of error. I have downloaded a file jboss-app_3_0.dtd. Where should I put it so that JBoss uses the local copy of DTD? P.S. Deployment of the same .ear in JBoss-3.2.3 is OK. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3838298#3838298 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3838298 --- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Beginners Corner] - Deploying .ear file on JBOSS-3.0.4 - Problem with DTD
When I try to deploy .ear file on JBoss-3.0.4 server I have an ERROR with message org.jboss.deployment.DeploymentException: External entity not found: http://www.jboss.org/j2ee/dtd/jboss-app_3_0.dtd;.; - nested throwable: (java.net.ConnectException: Connection refused: connect). I use firewall for Internet connection, this is (probably) the reason of error. I have downloaded a file jboss-app_3_0.dtd. Where should I put it so that JBoss uses the local copy of DTD? P.S. Deployment of the same .ear in JBoss-3.2.3 is OK. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3837974#3837974 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3837974 --- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Beginners Corner] - InitialContext and Threads
Can I use an instance of InitialContext in multithread environment, ie is initialContext.lookup(); thead-safe? a href=http://www.jboss.org/index.html?module=bbop=viewtopicp=3826133#3826133;View the original post/a a href=http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3826133Reply to the post/a --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Security JAAS/JBoss] - How to get Caller Principal in plain Java class
I have a SessionFacade which calls a method in plain java class. At Java class I need to write log with message that user A call this method. How can I do that if I don't want to pass a Principal object as method argument? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3823554#3823554 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3823554 --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Beginners Corner] - Connect to other EJB server from Session Bean
I use JBoss 3.2.3 and I need to connect to other EJB server (JBoss 3.0.4) as client. I try to make lookup java.util.Hashtable JNDIParm = new java.util.Hashtable(); JNDIParm.put(Context.PROVIDER_URL, Services.OTHER_SERVER_URL); JNDIParm.put(Context.INITIAL_CONTEXT_FACTORY, org.jnp.interfaces.NamingContextFactory); Context ctx = new InitialContext(JNDIParm); Object ref = ctx.lookup(MySessionFacade); At last line the following exception arises: 14:51:30,512 ERROR org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:332): EJBException, causedBy: javax.naming.CommunicationException [Root exception is java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: org.jnp.interfaces.FastNamingProperties (no security manager: RMI class loader disabled)] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:647) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507) at javax.naming.InitialContext.lookup(InitialContext.java:347) at ru.mgr.mls.facades.search.SearchSessionFacadeBean.findFileArchiveHome(SearchSessionFacadeBean.java:657) at ru.mgr.mls.facades.search.SearchSessionFacadeBean.findFileContainerByDocId(SearchSessionFacadeBean.java:878) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:683) at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185) at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:72) at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84) at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267) at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128) at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118) at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191) at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122) at org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:331) at org.jboss.ejb.Container.invoke(Container.java:700) at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546) at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367) at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261) at sun.rmi.transport.Transport$1.run(Transport.java:148) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:144) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701) at java.lang.Thread.run(Thread.java:534) Caused by: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: org.jnp.interfaces.FastNamingProperties (no security manager: RMI class loader disabled) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292) at sun.rmi.transport.Transport$1.run(Transport.java:148) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:144) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701) at java.lang.Thread.run(Thread.java:536) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247) at
[JBoss-user] [Security JAAS/JBoss] - Re: Security, multi-user environment
View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3821180#3821180 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3821180 Thanks for your help. Situation becomes clear. But now I don't understand where login procedures should be placed. I use Tomcat/Jboss and restrict access to EJB by specifying security domain, configuring ejb-jar.xml etc... My assumption is to put login procedures code to BusinessDelegate class and call it before each remote method invokes. Is it right? What do you advise? --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Security JAAS/JBoss] - Re: Security, multi-user environment
View the original post :
http://www.jboss.org/index.html?module=bbop=viewtopicp=3821190#3821190
Reply to the post :
http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3821190
And last question. Imagine a following code fragment, which is used by client:
public class MyBusinessDelegate {
MySessionFacadeHome facadeHome;
MySessionFacade facade;
String user_name;
String user_pass;
private void MyBusinessDelegate() {
// All required actions for correct initialization facadeHome and facade as
described
}
public void login() {
// All required actions to login as described above discussion
}
public void method() {
facade.method();
}
}
In multi-user, multi-thread environment (servlet):
1) User A creates a new instance of MyBusinessDelegate class;
MyBusinessDelegate InstA = new MyBusinessDelegate();
2) User B creates a new instance of MyBusinessDelegate class;
MyBusinessDelegate InstB = new MyBusinessDelegate();
3) User A call login();
4) User B call login();
5) User A call method();
In step 5 User A call method() as user B.
Does it mean than login() and method() should be syncronized?
Any ideas?
---
SF.Net is sponsored by: Speed Start Your Linux Apps Now.
Build and deploy apps Web services for Linux with
a free DVD software kit from IBM. Click Now!
http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click
___
JBoss-user mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Security JAAS/JBoss] - Security, multi-user environment
View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3821167#3821167 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3821167 My question is similar to BrianZ. He wrote: - We are using SessionContext/EntityContext to get the user name for updating the db. The problem is the last user who logged in is always set for all others in a multi-user environment. Pojos were written in order to isolate the issue, but the problem did not occur. Any suggestions? - starksm anwered: - don't understand what your asking with regard to getCallerPrincipal(). This is the identity of the caller on the current invocation. In a multi-user environment it can change on every call. What is the relationship between the caller of an ejb and the db? - I try to emulate multi-user environment with a following code: // User1 has admin privilegues AppCallbackHandler handler1 = new AppCallbackHandler(UserData.ADMIN_LOGIN, UserData.ADMIN_PASSWORD); LoginContext lc1 = new LoginContext(other, handler1); lc1.login(); Subject subj1 = lc1.getSubject(); Context context1 = new InitialContext(); Object ref1 = context1.lookup(MySessionFacade); MySessionFacadeHome facadeHome1 = (MySessionFacadeHome) PortableRemoteObject.narrow(ref1, MySessionFacadeHome.class); MySessionFacade facade1 = facadeHome1.create(); facade1.method(); // In server method() I put following line // log.debug(Principal is + this.sessionContext.getCallerPrincipal ().getName()); // At this time it will output Principal is admin // User 2 has a guest privilgues AppCallbackHandler handler2 = new AppCallbackHandler(UserData.GUEST_LOGIN, UserData.GUEST_PASSWORD); LoginContext lc2 = new LoginContext(other, handler2); lc2.login(); Subject subj2 = lc2.getSubject(); Context context2 = new InitialContext(); Object ref2 = context2.lookup(MySessionFacade); MySessionFacadeHome facadeHome2 = (MySessionFacadeHome) PortableRemoteObject.narrow(ref2, MySessionFacadeHome.class); MySessionFacade facade2 = facadeHome2.create(); facade2.method(); // At this time it will output Principal is guest // // Call facade1 again facade1.method(); // At this time it will output Principal is guest What code should I put to line marked // for call facade1.method(); whith admin role? As I can see from starksm answer I must relogin before EACH method() call? Probably this situation taking place in servlets/jsp, which lives in same JVM. --- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356alloc_id=3438op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
