EJB DEPLOYMENT--plz help

hi pple..
can anyone plz help me in telling steps for deploying an EJB App on Web Logic 8.1.
i have my four classes i.e remote interface,home interface,client interface and bean...plz tell me what is directory structure followed and how is it deployed.

Build an ear file, then open the WebLogic Server Console, go to Deployments -> Applications--> Deploy a New Application and upload your ear file.
Manuel Leiria

Similar Messages

  • Ejb Deployment - Please help ?????

    I am using Oracle 8.1.7 database ( Oarcle 9i App Server ) & JDeveloper 3.2 , but i am Unable to Deploy The BC4j as a Session bean in Oracle 9i App Server .
    Can u please help me Out , in Getting it work Sucessfully .
    Below is the Command Output .....
    EJB deployment argument list:
    "D:\Program Files\JDeveloper 3.2\java1.2\jre\bin\javaw"
    "-DPATH=D:\Program Files\JDeveloper 3.2\bin;D:\Program Files\JDeveloper 3.2\java1.2\bin"
    -classpath
    "D:\Program Files\JDeveloper 3.2\aurora\lib\aurora_client.jar;D:\Program Files\JDeveloper 3.2\lib\javax-ssl-1_2.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\jasper.zip;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjorb.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjapp.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjtools.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbj30ssl.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\aurora.zip;D:\Program Files\JDeveloper 3.2\sqlj\lib\translator.zip;D:\Program Files\JDeveloper 3.2\sqlj\lib\runtime.zip;D:\Program Files\JDeveloper 3.2\aurora\lib\mts.jar;E:\JDEV\OurTest;D:\Program Files\JDeveloper 3.2\lib\jbojdbcpatch.zip;D:\Program Files\JDeveloper 3.2\lib\jbodomorcl.zip;D:\Program Files\JDeveloper 3.2\lib\jbodatum12.zip;D:\Program Files\JDeveloper 3.2\lib\jdev-rt.zip;D:\Program Files\JDeveloper 3.2\jdbc\lib\oracle8.1.7\classes12.zip;D:\Program Files\JDeveloper 3.2\lib\connectionmanager.zip;D:\Program Files\JDeveloper 3.2\lib\javax_ejb.zip;D:\Program Files\JDevelope
    3.2\lib\jbomt.zip;D:\Program Files\JDeveloper 3.2\lib\jboremote.zip;D:\Program Files\JDeveloper 3.2\lib\jndi.jar;D:\Program Files\JDeveloper 3.2\lib\xmlparserv2.jar;D:\Program Files\JDeveloper 3.2\lib\jbotester.zip;D:\Program Files\JDeveloper 3.2\aurora\lib\aurora_client.jar;D:\Program Files\JDeveloper 3.2\lib\javax-ssl-1_2.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\jasper.zip;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjorb.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjapp.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbjtools.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\vbj30ssl.jar;D:\Program Files\JDeveloper 3.2\aurora\lib\aurora.zip;D:\Program Files\JDeveloper 3.2\sqlj\lib\translator.zip;D:\Program Files\JDeveloper 3.2\sqlj\lib\runtime.zip;D:\Program Files\JDeveloper 3.2\aurora\lib\mts.jar;D:\Program Files\JDeveloper 3.2\lib\jbocmp.zip;D:\Program Files\JDeveloper 3.2\java1.2\jre\lib\rt.jar;D:\Program Files\JDeveloper 3.2\lib\xmlparserv2.jar"
    oracle.aurora.ejb.deployment.GenerateEjb
    -u
    scott
    -p
    tiger
    -s
    sess_iiop://208.13.222.141:2481:CTPOS
    -republish
    -keep
    -temp
    TEMP
    -descriptor
    "D:\Program Files\JDeveloper 3.2\myprojects\Emp.xml"
    -oracledescriptor
    D:\Program Files\JDeveloper 3.2\myprojects\Emp_oracle.xml
    -generated
    "D:\Program Files\JDeveloper 3.2\myprojects\EmpGenerated.jar"
    "D:\Program Files\JDeveloper 3.2\myprojects\EmpSource.jar"
    org.omg.CORBA.COMM_FAILURE: java.io.IOException: Peer disconnected socket minor code: 0 completed: No
    org.omg.CORBA.portable.InputStream com.visigenic.vbroker.orb.GiopStubDelegate.invoke(org.omg.CORBA.Object, org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder, org.omg.CORBA.Context, org.omg.CORBA.ContextList)
    org.omg.CORBA.portable.InputStream com.visigenic.vbroker.orb.GiopStubDelegate.invoke(org.omg.CORBA.Object, org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder)
    org.omg.CORBA.portable.InputStream com.inprise.vbroker.CORBA.portable.ObjectImpl._invoke(org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder)
    byte[] oracle.aurora.AuroraServices._st_LoginServer.O3Logon_A_Locale(java.lang.String, oracle.aurora.AuroraServices.Locale)
    boolean oracle.aurora.client.Login.authenticate(java.lang.String, java.lang.String, java.lang.String)
    boolean oracle.aurora.jndi.sess_iiop.SessionCtx.login(java.lang.String, java.lang.String, java.lang.String)
    boolean oracle.aurora.jndi.sess_iiop.SessionCtx.login()
    oracle.aurora.jndi.sess_iiop.SessionCtx oracle.aurora.jndi.sess_iiop.ServiceCtx.login()
    void oracle.aurora.server.tools.sess_iiop.ToolImpl.initializeSession()
    java.lang.String[] oracle.aurora.server.tools.sess_iiop.ToolImpl.parseStdArgs(java.lang.String[])
    void oracle.aurora.server.tools.sess_iiop.ToolImpl.invoke(java.lang.String[], java.io.InputStream, java.io.PrintStream, java.io.PrintStream)
    void oracle.aurora.ejb.deployment.GenerateEjb.main(java.lang.String[])
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    *** Errors occurred while deploying the EJB to 8i JVM ***
    *** Deployment completed ***
    null

    there area couple of notes at the following location which describe how to setup ias 9i and then deploy bc4k app's to it .
    http://technet.oracle.com/docs/products/jdev/howto.html

  • Error on deployment (plz help me to solve this very urgent.....)

    Result
    => deployment aborted : file:/C:/DOCUME1/E371011/LOCALS~1/Temp/temp20811ApplicationTest.ear
    Aborted: development component 'ApplicationTest'/'local'/'LOKAL'/'0.2007.06.22.16.36.17':Caught exception while checking the login credentials for SAP J2EE Engine. Check whether the SAP J2EE Engine is up and running.com.sap.engine.deploy.manager.DeployManagerException: ERROR: Cannot connect to Host: [epmft] with user name: [J2EE_ADMIN]                     Check your login information.                     Exception is: com.sap.engine.services.jndi.persistent.exceptions.NamingException: Exception while trying to get InitialContext. [Root exception is com.sap.engine.services.security.exceptions.BaseLoginException: Cannot authenticate the user.] (message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.checkLoginCredentials.DMEXC)

    Hi Shanto,
    Either your admin password is expired or you have changed the administrator password.
    Do the following Steps,
    Use the Config Tool to change the entry in secure storage as follows:
    1. Start the Config Tool.
    (Execute <SAPj2eeEngine_install_dir> configtoolconfigtool.bat.)
    2. Select the secure store node.
    The configuration for the secure storage in the file system appears.
    3. Select the admin/password/<SID> entry.
    4. Enter the administrator user's new password in the "Value" field and choose "Add".
    5. Choose "File" --> "Apply" to save the data.
    Note: Contrary to the message that appears, you do not need to restart the server or cluster for this change to take effect.
    6. Finally restart SDM server.
    Then deploy.
    refer SAP note : <a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bc_jas/~form/handler">701654</a>
    Regards,
    Mithu

  • Plz help in configring Rman

    i have install oracle 10g on windows for testing purposes. first day enterprize work properly but next day when i try to open database control i received socket error. further inspection i found in services no dbconsole service is running. i tried to run dbconsole by these command
    set ORACLE_SID=orcl
    emctl start dbconsole
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    Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
    Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
    Invalid arguments
    Unknown command option start
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    Oracle Enterprise Manager 10g Database Control commands:
    emctl start| stop| status| setpasswd dbconsole
    emctl secure <options>
    emctl set ssl test|off|on em
    emctl set ldap <host> <port> <user dn> <user pwd> <context dn>
    emctl blackout options can be listed by typing "emctl blackout"
    emctl config options can be listed by typing "emctl config"
    emctl secure options can be listed by typing "emctl secure"
    emctl ilint options can be listed by typing "emctl ilint"
    emctl deploy options can be listed by typing "emctl deploy"
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    There is an exclusive forum for RMAN
    Recovery Manager (RMAN)
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    Karthick.

  • How to specify the target name while deploying a code in OSB-- Plz Help

    Hi all,
    Am working in creating a cluster environment. For my testing i created a new managed server(OSB_Server) in 9001 port in the admin console itself and that server started running. The default managed server(Admin_Server) is in 7001 port. So when i deploy a code in 7001 sb console the WSDL gets exposed in 7001 because the default admin server port is 7001. While deploying a code in service bus admin console we are not specifying the target name. So how to specify the target name while deploying the code in service bus admin console. Plz help me.
    Regards
    Prabhu

    Hi Prabhu,
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    2. Admin Server + Single Managed Server for OSB -- OSB configuration gets deployed on OSB managed server. OSB resources (proxy service, WSDL, Schema) will remain available on OSB managed server port only and NOT on admin server port
    3. Admin Server + OSB cluster -- OSB configuration gets deployed on OSB cluster. OSB resources (proxy service, WSDL, Schema) will remain available on OSB Cluster port(s) only and NOT on admin server port
    Converting one type of server architecture to any other type, requires a manual tedious process, so it is suggested that you create domain accordingly i.e. if you need clusters then while creating domain itself, create OSB cluster, so that all OSB applications gets deployed to OSB cluster. I will suggest you to create a clustered domain from scratch and import the configuration from your existing domian to this new clustered domain.
    You may refer-
    http://download.oracle.com/docs/cd/E17904_01/doc.1111/e15022/toc.htm
    Regards,
    Anuj

  • Plz help with deploying applet that uses SSL

    Hi, maybe this is not the adecuate forum but ive already tried in others and i got no answer.
    Im trying to use a certificate with my applet ( tha sends a lot of info to the server and also connects to another hibernate db) but im getting this error:
    Server side:
    username is: Panda
    Registered the SSLServerSocket on port 6969
    Listening ....
    ---- Got a connection from a client
         this is an unknown client
    !!!!!!Error in reading or writing from/to the client:
    javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkEOF(Unknown Source)
         at com.sun.net.ssl.internal.ssl.AppInputStream.read(Unknown Source)
         at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(Unknown Source)
         at sun.nio.cs.StreamDecoder$CharsetSD.implRead(Unknown Source)
         at sun.nio.cs.StreamDecoder.read(Unknown Source)
         at java.io.InputStreamReader.read(Unknown Source)
         at java.io.BufferedReader.fill(Unknown Source)
         at java.io.BufferedReader.readLine(Unknown Source)
         at java.io.BufferedReader.readLine(Unknown Source)
         at PaqueteServidor.Server$handleRequest.run(Server.java:130)
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         at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAlert(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.getSession(Unknown Source)
         at PaqueteServidor.Server.printClientCerts(Server.java:47)
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    javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown
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         at com.sun.net.ssl.internal.ssl.AppInputStream.read(Unknown Source)
         at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(Unknown Source)
         at sun.nio.cs.StreamDecoder$CharsetSD.implRead(Unknown Source)
         at sun.nio.cs.StreamDecoder.read(Unknown Source)
         at java.io.InputStreamReader.read(Unknown Source)
         at java.io.BufferedReader.fill(Unknown Source)
         at java.io.BufferedReader.readLine(Unknown Source)
         at java.io.BufferedReader.readLine(Unknown Source)
         at PaqueteServidor.Server$handleRequest.run(Server.java:130)
    Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown
         at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAlert(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.getSession(Unknown Source)
         at PaqueteServidor.Server.printClientCerts(Server.java:47)
         at PaqueteServidor.Server.run(Server.java:100)
    Client side:
    javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
         at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
         at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source)
         at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source)
         at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
         at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
         at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
         at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
         at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
         at Interfaz.InterfazMovil.init(InterfazMovil.java:89)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
         at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
         at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
         at sun.security.validator.Validator.validate(Unknown Source)
         at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
         at com.sun.net.ssl.internal.ssl.JsseX509TrustManager.checkServerTrusted(Unknown Source)
         ... 14 more
    Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
         at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
         at java.security.cert.CertPathBuilder.build(Unknown Source)
         ... 19 more
    19:40:34,444 INFO Environment:464 - Hibernate 3.0.5
    19:40:34,444 INFO Environment:477 - hibernate.properties not found
    19:40:34,444 INFO Environment:510 - using CGLIB reflection optimizer
    19:40:34,454 INFO Environment:540 - using JDK 1.4 java.sql.Timestamp handling
    19:40:34,645 INFO Configuration:1110 - configuring from resource: /bd/hibernate/hibernate.cfg.xml
    19:40:34,645 INFO Configuration:1081 - Configuration resource: /bd/hibernate/hibernate.cfg.xml
    19:40:35,045 ERROR XMLHelper:59 - Error parsing XML: /bd/hibernate/hibernate.cfg.xml(21) The content of elements must consist of well-formed character data or markup.
    19:40:35,045 ERROR Configuration:1172 - problem parsing configuration/bd/hibernate/hibernate.cfg.xml
    org.dom4j.DocumentException: Error on line 21 of document : The content of elements must consist of well-formed character data or markup. Nested exception: The content of elements must consist of well-formed character data or markup.
         at org.dom4j.io.SAXReader.read(SAXReader.java:482)
         at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1168)
         at org.hibernate.cfg.Configuration.configure(Configuration.java:1112)
         at bd.hibernate.HibernateUtil.currentSession(HibernateUtil.java:51)
         at bd.controlador.CLetrero.ListarLetreros(CLetrero.java:45)
         at Interfaz.InterfazMovil.init(InterfazMovil.java:126)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    Nested exception:
    org.xml.sax.SAXParseException: The content of elements must consist of well-formed character data or markup.
         at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
         at org.dom4j.io.SAXReader.read(SAXReader.java:465)
         at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1168)
         at org.hibernate.cfg.Configuration.configure(Configuration.java:1112)
         at bd.hibernate.HibernateUtil.currentSession(HibernateUtil.java:51)
         at bd.controlador.CLetrero.ListarLetreros(CLetrero.java:45)
         at Interfaz.InterfazMovil.init(InterfazMovil.java:126)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    %%%% Error Creating SessionFactory %%%%
    org.hibernate.HibernateException: problem parsing configuration/bd/hibernate/hibernate.cfg.xml
         at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1173)
         at org.hibernate.cfg.Configuration.configure(Configuration.java:1112)
         at bd.hibernate.HibernateUtil.currentSession(HibernateUtil.java:51)
         at bd.controlador.CLetrero.ListarLetreros(CLetrero.java:45)
         at Interfaz.InterfazMovil.init(InterfazMovil.java:126)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    Caused by: org.dom4j.DocumentException: Error on line 21 of document : The content of elements must consist of well-formed character data or markup. Nested exception: The content of elements must consist of well-formed character data or markup.
         at org.dom4j.io.SAXReader.read(SAXReader.java:482)
         at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1168)
         ... 6 more
    java.lang.NullPointerException
         at bd.hibernate.HibernateUtil.currentSession(HibernateUtil.java:59)
         at bd.controlador.CLetrero.ListarLetreros(CLetrero.java:45)
         at Interfaz.InterfazMovil.init(InterfazMovil.java:126)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    Plz help and thx in advance.

    I know I didn't get round to replying but no need to post it so many times.
    http://forum.java.sun.com/thread.jspa?threadID=666870
    http://forum.java.sun.com/profile.jspa?userID=543817
    http://forum.java.sun.com/thread.jspa?threadID=669965
    http://forum.java.sun.com/profile.jspa?userID=543817
    http://forum.java.sun.com/thread.jspa?threadID=669975
    http://forum.java.sun.com/thread.jspa?threadID=669973
    Could it be that the server and client need to open different keystores?
    http://forums.java.sun.com/thread.jspa?threadID=573918&messageID=3272683
    reply 7
    My example given before should work on different machines, try to export the server key and import it into the
    client keystore. Export the client key and import in the server keystore if you want the server to authenticate
    the client.
    http://forum.java.sun.com/thread.jspa?threadID=666870
    reply 4
    Check the method getSSLSocketFactory in the applet, that will open a keystore for you.

  • EJB Run Time Error!.........  Plz Help Me ASAP

    hi all,
    i got an exception while running the client program
    "java.lang.ClassCastException:ExeBean_yceoj3_HomeImpl:
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    i think this above mentioned exception is related to this code
    plz check this code... i am waiting for ur reply...
    import javax.naming.*;
    import javax.sql.*;
    import java.sql.*;
    import javax.ejb.*;
    import java.rmi.*;
    import java.lang.*;
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         Connection con=null;
         public void setSessionContext(SessionContext sc)
         public void ejbActivate()
         public void ejbPassivate()
         public void ejbRemove()
              try
                   con.close();
              catch(Exception e)
                   System.out.println(e);
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                   InitialContext ic=new InitialContext();
                   DataSource d=(DataSource)ic.lookup("java:comp/env/jdbc/examples");
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              catch(Exception e)
                   System.out.println(e);
              public boolean validate(String u, String p)throws RemoteException
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                        PreparedStatement p1=con.prepareStatement("Select pwd from testusers where userid=?");
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                             else
                                  return false;
                   catch(Exception e)
                        System.out.println(e);
                   return false;
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    hi Thomos,
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    Remote:
    import javax.ejb.*;
    import java.rmi.*;
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    Home:
    import javax.ejb.*;
    import java.rmi.*;
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         public Exe2 create() throws CreateException, RemoteException;
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    import javax.naming.*;
    import javax.sql.*;
    import java.sql.*;
    import javax.ejb.*;
    import java.rmi.*;
    import java.lang.*;
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         Connection con=null;
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         public void ejbPassivate()
         public void ejbRemove()
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                   InitialContext ic=new InitialContext();
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              catch(Exception e)
                   System.out.println(e);
              public boolean validate(String u, String p)throws RemoteException
                   try
                        PreparedStatement p1=con.prepareStatement("Select pwd from testusers where userid=?");
                        p1.setString(1,u);
                        ResultSet rs=p1.executeQuery();
                        while(rs.next())
                             String t=rs.getString(1);
                             if(t.equals(p))
                                  return true;
                             else
                                  return false;
                   catch(Exception e)
                        System.out.println(e);
                   return false;
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              before it returns. This behavior can be overridden by marking a service idempotent..."
              BUT
              "By default, a stateful session bean's Home stub provides load balancing and failover
              for its method invocations to any clustered server where the bean is deployed...."
              So is possible to achieve automatic failover (not only load balancing) for stateful
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              is requiered if the server crashed just before finishing a transaction but this
              is not what im talking about).
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              Alan
              

              Ryan,
              Yes, im deploying using In-memory replication and clusterable elements, when try
              to invoke the method (after one of the nodes is down) i recieve an "java.rmi.NoSuchObjectException:
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              I believe all this could be related to some sort of issue with JNDI Lookup in
              the cluster, but haavent been able to get a clue to make it work....(almost desesperate
              by now)
              Alan
              "ryan upton" <[email protected]> wrote:
              >Alan,
              >
              >If the state isn't maintained during failover I would suspect a
              >configuration error. Have you set the <replication-type> element within
              ><stateful-session-clustering> tag in the bean's deployment descriptor?
              >
              >"Alan" <[email protected]> wrote in message
              >news:40e17cf7$1@mktnews1...
              >>
              >> Ryan,
              >>
              >>
              >> Maybe i didnt explain myself, in the scenario im dealing with I KNOW
              >the
              >method
              >> finished succesfully (example, the user succesfully added an item to
              >a
              >cart).
              >>
              >>
              >> Just after that one of the nodes goes down, and the user decides to
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              >new
              >> item (new invocation , not a retry of failed one) on the same session.
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              >> This is the case in which failover should work automatically as you
              >say,
              >meaning
              >> the new method invokation should be able to retrieve the session state
              >info from
              >> the replica and switch the primary.....Well, this is the part wich
              >isnt
              >working
              >> :( as i understand it should transparently
              >>
              >> I believe could be a config issue , but have no way to make it work.
              >>
              >> Regards,
              >>
              >> Alan
              >> "ryan upton" <[email protected]> wrote:
              >> >
              >> >"Alan" <[email protected]> wrote in message
              >news:40e06296@mktnews1...
              >> >>
              >> >> Ryan,
              >> >>
              >> >> Thanks for clearing the both conditions a bit more, in this case
              >my
              >> >issue
              >> >has
              >> >> to do with the scenario #1 in which subsequent calls (invocations)
              >> >go to a
              >> >node
              >> >> which isnt avaliable(down), do you have any idea of in what conditions
              >> >the
              >> >"automnatic"
              >> >> failover would fail??? (meaning why the stub would try to dispatch
              >> >a call
              >> >to the
              >> >> same previous node)
              >> >>
              >> >> Thanks for the help again
              >> >>
              >> >
              >> >Subsequent calls won't go to a node that's down. That's the whole
              >> >point
              >> >;-). Failover is always automatic, what you are getting confused
              >on
              >> >is
              >> >automatic method re-execution upon failover which happens if the method
              >> >has
              >> >been marked as idempotent. The logic is this: if I failover to an
              >EJB
              >> >that
              >> >I know is still alive, I can't safely call the same method again.
              > Why?
              >> >Because I don't know how much of the method completed the last time
              >before
              >> >the previous bean's failure. So if the bean can yield multiple results
              >> >from
              >> >multiple invocations I had better play it safe and not re-execute
              >the
              >> >method
              >> >on the bean I failed over to (unless it's idempotent because in that
              >> >case it
              >> >doesn't matter how many times I call it, it always does the same thing).
              >> > In
              >> >scenario #1 and #2 failover is automatic and all new calls are executed
              >> >against the bean the client failed over to, but only idempotent methods
              >> >are
              >> >re-executed.
              >> >
              >> >
              >>
              >
              >
              

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