JBoss/Hibernate/InstantClient/RAC

Hi,
First, I have no experience with RAC. I have RAC on two machines with one storage and want to use with load balancing and TAF. On next machine I have JBoss AS where I connect to Oracle via Hibernate whith thin client. All connection data I have in hibernate.cfg.xml file, where I point one database form RAC. I don't have full client on JBoss' host. Is it correct configuration? I saw, when full client is installed in tnsname.ora one sid points two hosts.
Thanx, Jacek

Here is stack trace: LocalManagedConnectionFactory.createManagedConnection crashes at line 160.
We believe that the problem is in hotdeployment: JBoss does not manage to undeploy the application and connections and that is why hotdeployment fails when Hibernate asks for a connection from JBoss connection manager. I use jTDS driver, but problems occur with MS JDBC Driver too.
09:15:50,995 WARN [JBossManagedConnectionPool] Throwable while attempting to get a new connection:
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.lang.RuntimeException: No message resource found for message property prop.servertype)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:160)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:477)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:213)
at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:496)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.getManagedConnection(BaseConnectionManager2.java:425)
at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:318)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:477)
at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:814)
at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:122)
at net.sf.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:56)
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:72)

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JBoss Can't find Oracle Driver

Hello, everyone,
I'm hoping someone can help me.
I've created a small web service. I have one method which returns something very straight forward, and it works fine.
I have then progressed this to try to return some data from an Oracle table.
However, when I try to do this, I get an error back saying that the Oracle Driver can not be found.
I am using JBoss, and am running this in Eclipse's Web Service Explorer.
The things I have tried to solve the issue are:
- Ensuring the Oracle driver is located in Windows>Preferences>General>Data Management>Connectivity>Driver Definitions
- Placing the Oracle driver jar in as many lib folders in my JBoss directory on my C drive as possible (I may have missed some out).
I am not sure what else to try. Please can someone help me or point me in the right direction?
Any help would be hugely appreciated.
Thank you very much in advance.
Robin
My stacktrace is as follows:
[code]
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver from BaseClassLoader@1652e61{VFSClassLoaderPolicy@1c7eb33{name=vfsfile:/C:/Jboss/jboss-5.0.0.GA/server/default/conf/jboss-service.xml domain=ClassLoaderDomain@9fe84e{name=DefaultDomain parentPolicy=BEFORE parent=org.jboss.system.NoAnnotationURLClassLoader@a97b0b} roots=[MemoryContextHandler@2254409[path= context=vfsmemory://4shc4f-nlo6vf-hjk3qb83-1-hjk3qewj-6 real=vfsmemory://4shc4f-nlo6vf-hjk3qb83-1-hjk3qewj-6], DelegatingHandler@6903079[path=antlr.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/antlr.jar], DelegatingHandler@22387624[path=autonumber-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/autonumber-plugin.jar], DelegatingHandler@22963857[path=bcel.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/bcel.jar], DelegatingHandler@10479206[path=bsf.jar 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context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/edb-jdbc14.jar], DelegatingHandler@4824957[path=ejb3-persistence.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ejb3-persistence.jar], DelegatingHandler@25551189[path=el-api.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/el-api.jar], DelegatingHandler@9229531[path=hibernate-annotations.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-annotations.jar], DelegatingHandler@32148925[path=hibernate-commons-annotations.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-commons-annotations.jar], DelegatingHandler@33522601[path=hibernate-core.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-core.jar], DelegatingHandler@1899900[path=hibernate-entitymanager.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-entitymanager.jar], DelegatingHandler@21354482[path=hibernate-jmx.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-jmx.jar], DelegatingHandler@6588912[path=hibernate-validator.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hibernate-validator.jar], DelegatingHandler@10229202[path=hsqldb-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hsqldb-plugin.jar], DelegatingHandler@22852149[path=hsqldb.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/hsqldb.jar], DelegatingHandler@12046052[path=ibatis-2.3.4.726.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ 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real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-interceptors.jar], DelegatingHandler@25089808[path=jboss-ejb3-metadata.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-metadata.jar], DelegatingHandler@5868125[path=jboss-ejb3-proxy-clustered.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-proxy-clustered.jar], DelegatingHandler@9114403[path=jboss-ejb3-proxy.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-proxy.jar], DelegatingHandler@9795777[path=jboss-ejb3-security.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-security.jar], DelegatingHandler@19590177[path=jboss-ejb3-transactions.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-ejb3-transactions.jar], 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DelegatingHandler@14820075[path=jboss-metadata.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-metadata.jar], DelegatingHandler@6467398[path=jboss-monitoring.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-monitoring.jar], DelegatingHandler@14768745[path=jboss-profileservice.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-profileservice.jar], DelegatingHandler@16166715[path=jboss-remoting-aspects.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-remoting-aspects.jar], DelegatingHandler@23747954[path=jboss-remoting.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jboss-remoting.jar], DelegatingHandler@1902564[path=jboss-security-aspects.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ 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DelegatingHandler@1823783[path=jbossws-native-jaxws-ext.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jbossws-native-jaxws-ext.jar], DelegatingHandler@17125267[path=jbossws-native-jaxws.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jbossws-native-jaxws.jar], DelegatingHandler@28000914[path=jbossws-native-saaj.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jbossws-native-saaj.jar], DelegatingHandler@10464309[path=jbossws-spi.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jbossws-spi.jar], DelegatingHandler@14869110[path=jmx-adaptor-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jmx-adaptor-plugin.jar], DelegatingHandler@25281771[path=jnpserver.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jnpserver.jar], DelegatingHandler@10968735[path=joesnmp.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/joesnmp.jar], DelegatingHandler@3486913[path=jsp-api.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/jsp-api.jar], DelegatingHandler@18513535[path=log4j-snmp-appender.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/log4j-snmp-appender.jar], DelegatingHandler@6749397[path=log4j.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/log4j.jar], DelegatingHandler@23142099[path=mail-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/mail-plugin.jar], DelegatingHandler@19847791[path=mail.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/mail.jar], DelegatingHandler@17226797[path=properties-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/properties-plugin.jar], DelegatingHandler@23150623[path=quartz.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/quartz.jar], DelegatingHandler@28882952[path=scheduler-plugin-example.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/scheduler-plugin-example.jar], DelegatingHandler@3816987[path=scheduler-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/scheduler-plugin.jar], DelegatingHandler@29594642[path=servlet-api.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/servlet-api.jar], DelegatingHandler@19811980[path=slf4j-api.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/slf4j-api.jar], DelegatingHandler@19335035[path=slf4j-jboss-logging.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/slf4j-jboss-logging.jar]] delegates=null exported=[, org.hibernate.loader.collection, org.jboss.deployers.spi.management.deploy, org.jboss.remoting.transporter, org.jboss.ejb3.proxy.clustered.objectfactory.session.stateful, com.arjuna.ats.txoj.semaphore, org.jboss.varia.property, com.arjuna.common.util.propertyservice, com.arjuna.common.util.logging, org.jboss.jms.server.messagecounter, org.jboss.ejb3.proxy.invocation, org.jboss.remoting.invocation, org.jboss.remoting.samples.transporter.proxy, javax.persistence, org.hibernate.engine.loading, org.jboss.security.xacml.sunxacml.combine, org.jboss.jms.client.remoting, com.arjuna.ats.internal.txoj.recovery, org.jboss.remoting.samples.transporter.serialization.server, javax.xml.registry.infomodel, 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org.jboss.security.xacml.sunxacml.finder, org.jboss.ejb3.proxy.remoting, org.jboss.ejb.plugins.cmp.jdbc.bridge, org.jboss.iiop.rmi.ir, org.jboss.jms.server.selector, org.jboss.ejb3.proxy.handler.stateful, org.hibernate.annotations.common.annotationfactory, org.jboss.ejb3.security.bridge, org.jboss.security.audit.config, org.jboss.remoting.transport.http.ssl, org.jboss.deployment.plugin, org.jboss.security.xacml.core.model.policy, org.apache.log4j.net, org.jboss.ejb3.tx.metadata, org.jboss.security.auth.certs, antlr.actions.cpp, org.jboss.metadata.ejb.jboss.jndipolicy.plugins, org.jboss.resource.metadata.mcf, licenses, com.ibatis.sqlmap.engine.config, org.hibernate.event, org.jboss.metadata.common.ejb, org.jaxen.function.xslt, javax.resource.spi.endpoint, javax.resource.spi.security, org.hibernate.cfg.annotations, META-INF.maven.org.jboss.cluster.jboss-ha-server-cache-spi, org.jboss.wsf.framework.management, org.jboss.ejb3.cache.grouped, org.jboss.metadata.javaee.support, org.jboss.ejb3.session, org.jboss.ejb3.proxy.handler.session.stateless, org.jboss.remoting.transport.socket, org.quartz.ee.servlet, com.arjuna.ats.jta, org.jboss.profileservice.remoting, javax.xml.rpc.encoding, javax.enterprise.deploy.spi.factories, org.jboss.security.audit.providers, javax.annotation.security, org.jboss.remoting.transport.sslmultiplex, org.jboss.varia.scheduler, com.ibatis.sqlmap.engine.mapping.sql.dynamic, org.jboss.logging, org.jboss.metadata.javaee.spec, org.jboss.jdbc, com.arjuna.ats.internal.jdbc, com.ibatis.common.io] <IMPORT-ALL>NON_EMPTY}}
at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:385)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:123)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:79)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:448)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
at ws.RobinWebService.getRobinTest(RobinWebService.java:71)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:454)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
16:56:55,319 ERROR [STDERR] Failed to create sessionFactory object.org.hibernate.HibernateException: JDBC Driver class not found: oracle.jdbc.OracleDriver
16:58:29,557 INFO [STDOUT] hello
16:58:29,557 INFO [Configuration] configuring from resource: support/oracle.hibernate.cfg.xml
16:58:29,557 INFO [Configuration] Configuration resource: support/oracle.hibernate.cfg.xml
16:58:30,116 INFO [Configuration] Reading mappings from resource : support/Centres.hbm.xml
16:58:30,116 INFO [HbmBinder] Mapping class: ws.Centres -> CENTRE_DETAIL
16:58:30,116 INFO [Configuration] Reading mappings from resource : support/RobinTest.hbm.xml
16:58:30,116 INFO [HbmBinder] Mapping class: ws.RobinTest -> ROBIN_TEST
16:58:30,116 INFO [Configuration] Configured SessionFactory: null
16:58:30,116 INFO [DriverManagerConnectionProvider] Using Hibernate built-in connection pool (not for production use!)
16:58:30,116 INFO [DriverManagerConnectionProvider] Hibernate connection pool size: 1
16:58:30,116 INFO [DriverManagerConnectionProvider] autocommit mode: false
16:58:30,131 ERROR [DriverManagerConnectionProvider] JDBC Driver class not found: oracle.jdbc.OracleDriver
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver from BaseClassLoader@1652e61{VFSClassLoaderPolicy@1c7eb33{name=vfsfile:/C:/Jboss/jboss-5.0.0.GA/server/default/conf/jboss-service.xml domain=ClassLoaderDomain@9fe84e{name=DefaultDomain parentPolicy=BEFORE parent=org.jboss.system.NoAnnotationURLClassLoader@a97b0b} roots=[MemoryContextHandler@2254409[path= context=vfsmemory://4shc4f-nlo6vf-hjk3qb83-1-hjk3qewj-6 real=vfsmemory://4shc4f-nlo6vf-hjk3qb83-1-hjk3qewj-6], DelegatingHandler@6903079[path=antlr.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/antlr.jar], DelegatingHandler@22387624[path=autonumber-plugin.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/autonumber-plugin.jar], DelegatingHandler@22963857[path=bcel.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/bcel.jar], DelegatingHandler@10479206[path=bsf.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/bsf.jar], DelegatingHandler@30371681[path=bsh.jar context=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/ real=file:/C:/Jboss/jboss-5.0.0.GA/common/lib/bsh.jar], DelegatingHandler@26839239[path=commons

You have to put the path of the driver jar file on server.xml file. If you open up the server.xml file inside the config directory of the appserver instance you will find all the paths are added to <java-config java-home = tag. So place the path in this place. Then there should not be any problem getting the driver.
Thanks

EJB 3 CMP not working in JBoss

hi,
i created a simple CMP Entity Bean with mySQL and works fine with OC4J but when delpoy to JBoss 4.0.4RC1, it doesn't work.
What I realised is that when a JDeveloper create a CMP Entity Bean from a Table it uses @Resource annotaion while I saw all the JBoss samples using @Persistance annotation.
I changed my CMP to use @persistence annotation and created a persistence.xml file; for somereason it is not working neither in JBoss nor does it work in OC4J.
Now, if i continue using @Resource annotation, where can I set the datasource so that the @Resource annotation uses my datasource when I deploy it to JBoss?
or is there any other way to get it working?
p/s: my datasource is working fine. i created a simple slsb and used
DataSource ds =
(DataSource)context.lookup(
"java:jdbc/mysqlDS");
and it works fine both in OC4J and JBoss
any help is appreciated.
thanks

Ok, i got this working in JBoss.
1) Replaced @Resource annotation with @Peristence annotation
@PersistenceContext(unitName="mysql")
2) Created persistence.xml in META-INF directory
<persistence>
<persistence-unit name="mysql">
<jta-data-source>java:/jdbc/mysqlDS</jta-data-source>

</persistence-unit>
</persistence>
that is it.
It means that whether we create EJB 3 on toplink EJB 3 or hibernate EJB 3, we should be able to run it on any of these as long as we stick with the standard annotations. JBoss Hibernate EJB has many additional annotations.
Now, the only thing that is not working is my Firebird DataSource in JBoss. If anyone has done it please let me know .. thanks.

1xM relation working in Hibernate doesn't work in Kodo and EclipseLink

Greetings,
I'm migrating some applications from JBoss/Hibernate to WebLogic 10gR3 and I found lots of JPA problems. In order to simplify the context, I used a very simple one to many bidirectional relationship between 2 entities. Using the following persistence.xml file:
<?xml version="1.0"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="ww204-jpa" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>cgDataSource</jta-data-source>
<class>fr.simplex_software.jpa.Employee</class>
<class>fr.simplex_software.jpa.Department</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="hibernate.transaction.factory_class"
value="org.hibernate.transaction.JTATransactionFactory" />
<property name="hibernate.transaction.manager_lookup_class"
value="org.hibernate.transaction.WeblogicTransactionManagerLookup" />
<property name="jta.UserTransaction" value="java:comp/UserTransaction" />
</properties>
</persistence-unit>
</persistence>
the test works correctly on WebLogic 10gR3. Now, I'm modifying the persistence.xml to read:
<?xml version="1.0"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="ww204-jpa" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>cgDataSource</jta-data-source>
<class>fr.simplex_software.jpa.Employee</class>
<class>fr.simplex_software.jpa.Department</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="kodo.jdbc.SynchronizeMappings" value="refresh" />
</properties>
</persistence-unit>
</persistence>
The test raises the following exception:
Exception in thread "Main Thread" java.lang.ClassCastException: fr.simplex_software.jpa.Department
     at fr.simplex_software.slsb.Facade_7ky0ac_FacadeRemoteImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
     at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:230)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
     at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
If I modify the persistence.xml to read:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="ww204-jpa" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider </provider>
<jta-data-source>cgDataSource</jta-data-source>
<class>fr.simplex_software.jpa.Employee</class>
<class>fr.simplex_software.jpa.Department</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
<property name="eclipselink.ddl-generation.output-mode"
value="database" />
</properties>
</persistence-unit>
</persistence>
the test raises the same exception. If I come back to the first persistence.xml file, the test works properly again. Is there something I'm doing wrong ?
Many thanks in advance for any help.
Nicolas

Performing the following operations after having changed the persistence.xml file solve the problem:
1. Undeploy the application.
2. Run appc to re-generate stubs and copy them on the client CLASSPATH (see also How to run a Java EE client application ?
3. Stop the server.
4. Start the server.
5. Re-deploy the application.
All the above operations are purhaps not absolutely required but the whole procedure is sufficient to provide the expected result.
Kind regards,
Nicolas

EJB3/JBoss vs. JDO2/Kodo

Hi,
does anybody here per chance have a (convincing ;) feature comparison between
EJB3/JBoss and JDO2/Kodo (Enterprise)? I'm not talking about support here, as that
can be purchased for JBoss as well.
My intuition says that Kodo is better technology and e.g. has better documentation,
but unfortunately that's too subjective to convince anybody else (which I'd really
like to).
Thanks for any information,
J__rg.

Thank you a lot for this even longer answer! Whenever someone asks me again why we
should go for Kodo, I'll give him a printout of this mail, just saying to him "read
this" ;)
Neelan Choksi schrieb:
It is clear that Kodo 4 complies to EJB3 (although it is notproduction-ready
currently).No implementation that supports EJB3 is production ready currently. That
is simply because the EJB3 specification just moved into public draft 2
weeks ago. There are still a lot of changes that are taking place in the
EJB3 spec (simply compare the Early Draft to the Public Draft and you'll
see how much things are changing). I am not criticizing the spec - I am
just pointing out that the spec is at a specific point in its life cycle
and there are a lot of really smart people including our CTO Patrick
Linskey trying to make sure 1) it is a good specification and 2) trying to
drive the specification forward to completion.
That said there are a lot of O/R Mapping products that are production
ready. I am going to limit my comments in this thread to focus on what
Kodo, the product, does well and not go into the differences in the
specifications.
I would also encourage you to take a look at both specifications and
determine which specification is right for you. Although fundamentally
similar, I believe certain developers will feel more comfortable with JDO
and certain developers will feel more comfortable with EJB3.
One distinguishing characteristic about Kodo is that you can use EJB 3 and
JDO 2 interoperably. This is a very big difference than some of the other
products that are on the market esp. since each specification has things
that the other specification is missing. Kodo gives you the best of both
worlds and allows you to choose how much of each world you want to use.
A pattern that we see emerging is that a lot of new customers are excited
to use our JDO standard support today and get the productivity gains that
Kodo provides today. While they wait to see if EJB3 Persistence meets
their needs and while they wait for their companies to adopt the
technology that EJB3 requires (JEE 5 and an app server that supports JEE
5), they will get the benefits of a solid O/R mapping tool that is based
on a standard. Over time, the interoperability that Kodo provides will
allow them to migrate piecemeal to EJB3 Persistence as it matures, thereby
managing their risk of adopting new technologies. Some of our customers
will migrate quickly and some have no plans of migrating ever. In any
case, Kodo provides a pathway for them.
But I can get the JBOSS implementation of EJB3 for free, why should
I pay
more for Kodo when it doesn't give me more functionality or performance?Abe has highlighted a number of technical features that distinguish Kodo.
I would encourage you to evaluate those features in a serious manner.
Often times we see other products who claim to have a given feature that
is in Kodo but when you actually use the feature, there are big
differences in quality and functionality. For example, I know that a
number of O/R mapping products claim to have a JMX management console but
I also know that the depth of functionality that is specific to O/R
mapping and ease of use of Kodo's Management Console was a big enough
differentiator that clients have asked to purchase the Management Console
standalone (FYI, to date we have not chosen to sell it standalone).
Regarding performance, this is one of the hardest things to compare.
We've been asked often if we have benchmarking numbers. The problem with
benchmarks is that a benchmark can be written to say anything you really
want. I would encourage you to benchmark for your specific application.
When properly tuned, I have not seen Kodo lose a benchmark since we
released Kodo 3 over a year ago. And we've seen some wins that have
really excited us e.g., Kodo + relational database has beaten existing
applications with object databases in performance / scalability
comparisons.
I also would like to highlight that a big differentiator between Kodo and
other products is the business model each employs. SolarMetric's focus is
selling product and occasionally selling services. As such, we do things
like take the most common of our experiences with performance tuning and
the most common support cases on performance / scalability and generalized
them into a chapter on optimizations techniques in our documentation. We
created the Management Console and Profiler to help customers resolve
their own performance / scalability issues. Other organizations that have
different models, e.g., solely services, are not motivated to provide this
level of best practices documentation and / or tools because that cuts
into their ability to provide services work.
I'm often in the same situation like J__rg. Always defending the decision touse
kodo (and doing so in future times) against statements like 'if we switch toEJB
why stay with kodo if we can get everything with JBoss/Hibernate for "free" 'Ok, even the JBoss guys admit that they are a business (there are some
recent interviews with Marc Fleury where he distinguishes between open
source hobbyists and professional open source where the goal is to
generate revenue). The reality is that how JBoss makes money is different
than how SolarMetric makes money, but nonetheless JBoss has to make money
to stay in business and to keep their investors happy just as SolarMetric
does.
What we've found interesting over the past few months is that many of our
enterprise customers who need support services and indemnification
protection have found that Kodo breaks even with open source solutions
when analyzed over a 1-2 year span and is dramatically cheaper over a 5
year span (simply comparing the costs of license and support between the
two). When factoring in other things e.g., quality of support, attitude
of support personnel, cost of training, quality of training, ease of use,
cost / time of contributing to the open source project, cost of digging in
the code of the open source project, Kodo has a lower Total Cost of
Ownership (TCO).
One final point to highlight with Kodo is that our model is not based on
certain customers of ours subsidizing all of the rest of our customers.
Such a model has a lot of business risk associated with it because the
customers that are willing to pay for services are customers that are
highly coveted. It is often dangerous to wake sleeping giants and put
your business at risk (see
http://www.forbes.com/home/intelligentinfrastructure/2005/06/15/jboss-ibm-linux_cz_dl_0615jboss.html).
I guess the bottom line is that JBoss/Hibernate or other open source
alternatives aren't free whether you look at out of pockets costs, TCO, or
risk.
Anyway. I'm convinced of kodo's robustnest - never had less problems whenusing
a third party product. If you describe a feature in the manual usually itworks.
Also the good pluggable architecture was worth its money ... it helpedeverytime
other implementation surely would have let us down.
Unfortunataly that are all things that you only realize, when you use it and
they are pretty difficult to communicate to decision makers, who are aboveme ;-)
Thank you for the compliments. I believe that the competition we've faced
supporting standards has made us quite bit stronger than products that
have been historically proprietary. The challenge with proprietary
products (e.g., TopLink and Hibernate) was that once you used them, you
have to re-write your entire data access infrastructure to switch away
from them. Having to support standards (JDO historically and now EJB 3)
for the past 4 years has meant that we've faced severe competition and the
only way for us to succeed was to build superior quality products that
have more functionality and better scalability and performance than
anything else out there. If we didn't, our customers could simply pick up
another of as many as 25 JDO implementations and try it out to see if
there was something better.
That said, the fact that our differentiators are a bit more subtle is one
of the challenges that we face as a business. A lot of the things that
differentiate Kodo e.g., Profiler, Management Console, Large Results Sets
Handling, Custom Fetch Groups, Lock Groups, Query Editor, etc. are things
that typically aren't evaluated very closely in a typical time-constrained
evaluations, but are absolutely critical when deploying in production
environments and when using Kodo with Agile Programming Methodologies.
The pluggable architecture that you reference is also very important
because many of our customers have constraints that prevent them from
fitting into a specific box. Again when a prospect does an eval, they
typically evaluate standard mappings and base functionality but the
reality is that the real world often brings up issues that no matter how
good the implementation is there will be something that isn't supported.
In our opinion, a pluggable architecture provides a cleaner way of
allowing customers to customize what they need rather than digging into
someone else's source code.
The things that we've heard from customers who have switched from other
solutions are:
- Kodo produces extremely clean SQL relative to other tools and
consequently has better performance and scaling characteristics
- Kodo's documentation and error messaging are extensive and makes
debugging quite easy
- Kodo's javadocs are extensive and provides a useful framework to
customize a wide variety of things.
- When tuning an application, Kodo provides a number of facilities and
tools for doing so relative to any other O/R mapping tools out there.
- Kodo's tooling is a large differentiator; in particular, the Kodo Query
Editor, the Profiler and the Management Console are often cited as
distinguishing features.
Also, one additional benefit with SolarMetric is that we are independent.
Our agenda is very clear - we are trying to create value for you such that
we get paid. There are no hidden agendas e.g., using Kodo as a loss
leader to sell you an object database, an application server, an entire
stack of products, training, services, etc. We simply are trying to build
a high quality product that meets our customers' needs that works well
with all the other technology products out there.
I hope between Abe's post and this post, we have helped you with arguments
for your management.
I'd encourage you to evaluate yourself and give us feedback.
Also, do not hesitate to contact me directly with any specific questions
or if you want me to review any documentation that you put together for
your management.
Thanks for your questions and interest. Stefan, thank you for being a
loyal customer.
Neelan Choksi
SolarMetric
[email protected]
202-595-2064 (main)
512-542-9707 (direct)
Vote for Kodo JDO as the Best DB Tool or Driver (Category 2), the Best
Java Data Access Tool (Category 7), and the Best Java Persistence
Architecture (Category 11) in the JDJ Readers Choice Awards at
http://jdj.sys-con.com/general/readerschoice.htm.

JPA with MySQL-Data-Source

Hello Forum,
I have a question regarding usage of a MySQL-Data-Source in combination with JPA
on the SAP NetWeaver Application Server, Java EE 5 Edition.
I have setup a custom datasource like explained in paper:
"Working with Database Tables, DataSources and JMS Resources"
- registered the database driver via telnet (Using mysql-connector-java-5.0.3-bin.jar)
- created the data-sources.xml file underneath the META-INF dir of the EAR project
[code]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE data-sources SYSTEM "data-sources.dtd" >
<data-sources>
<data-source>
    <data-source-name>titan_cruises_ds</data-source-name>
    <driver-name>mysql-connector-java-5.0.3-bin.jar</driver-name>
     <init-connections>1</init-connections>
     <max-connections>10</max-connections>
     <max-time-to-wait-connection>60</max-time-to-wait-connection>
     <expiration-control>
          <connection-lifetime>600</connection-lifetime>
          <run-cleanup-thread>60</run-cleanup-thread>
     </expiration-control>
     <sql-engine>native_sql</sql-engine>
    <jdbc-1.x>
      <driver-class-name>com.mysql.jdbc.Driver</driver-class-name>
      <url>jdbc:mysql://ourHost.internal.com:3306/practise_titan_cruises</url>
      <user-name>myUser</user-name>
      <password>myPass</password>
    </jdbc-1.x>
</data-source>
</data-sources>
[/code]
After that I manually created the persistence.xml underneath the META-INF dir of the EJB project.
[code]
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
     <persistence-unit name="titan_cruises_pu">
          <jta-data-source>titan_cruises_ds</jta-data-source>
     </persistence-unit>
</persistence>
[/code]
After that I created the Entity named "Cabin" and the corresponding table within the db.
Entity code:
[code]
package de.collogia.beans.pojo.ship;
import java.io.IOException;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
This persisted POJO class models the cabin data.
<p>
In this class persistence annotations are placed on the getter methods
of the attributes. This tells the persistence manager to access them
via the corresponding get- and set-Methods.</p>
(Unfortunately this does not work on NetWeaver and I had to place them
on field level aggain...)
@author Henning Malzahn ([email protected])
svn-revision:         $Rev:: 670                                           $:
svn-lasted-edited-by: $Author:: henning                                    $:
svn-last-changed:     $Date:: 2007-02-21 21:49:51 +0100 (Wed, 21 Feb 2007) $:
@Entity
@Table(name = "cabin")
public class Cabin implements Serializable {
    /** The generated serial version UID used for serialization. */
    private static final long serialVersionUID = -8522497314498903378L;
    /** The actual version number of this class used for serialization. */
    private static int actualVersion = 1;
    /** The cabin's id. */
    @Id
    @GeneratedValue
    @Column(name = "id")
    private long id;
    /** The cabin's name */
    @Column(name = "name")
    private String name;
    /** The cabin's deck level */
    @Column(name = "deck_level")
    private int deckLevel;
    /** The cabin's ship id */
    @Column(name = "ship_id")
    private int shipId;
    /** The cabin's bed count */
    @Column(name="bed_count")
    private int bedCount;
/---- Serialization/ Deserialization methods -/
Method that is responsible for deserialization of the object.
@param in The <code>ObjectInputStream</code> object to read
          the data from.
@throws IOException That may occur when reading from the
                    <code>ObjectInputStream</code> object
@throws ClassNotFoundException That may occur when invoking the default
                               deserialization mechanism.
    private void readObject(final java.io.ObjectInputStream in)
        throws IOException, ClassNotFoundException {
        /* Invoke default deserialization mechanism. */
        in.defaultReadObject();
        /* Read the actual version number of the class. */
        actualVersion = in.readInt();
    } // End of readObject()
Method that is responsible for serialization of the object.
@param out The <code>ObjectOutputStream</code> object to write
           the data to.
@throws IOException That may occur when writing to the
                    <code>ObjectOutputStream</code> object.
    private void writeObject(final java.io.ObjectOutputStream out)
        throws IOException {
        /* Invoke default serialization mechanism. */
        out.defaultWriteObject();
        /* Write the actual version number of the class. */
        out.writeInt(actualVersion);
    } // End of writeObject()
/---- Defining constructors -/
Private default constructor.
    private Cabin() {
    } // End of default constructor
Full constructor.
@param name The cabin's name.
@param deckLevel The cabin's deck level.
@param shipId The cabin's ship id.
@param bedCount The cabin's bed count.
    public Cabin(final String name,
                 final int deckLevel,
                 final int shipId,
                 final int bedCount) {
        this.name = name;
        this.deckLevel = deckLevel;
        this.shipId = shipId;
        this.bedCount = bedCount;
    } // End of full constructor
/---- Overridden class methods -/
Returns a string representation of the cabin's data.
@see java.lang.Object#toString()
    @Override
    public String toString() {
        StringBuffer strBuf = new StringBuffer();
        strBuf.append(this.name);
        strBuf.append("\n");
        strBuf.append(this.deckLevel);
        strBuf.append("\n");
        strBuf.append(this.shipId);
        strBuf.append("\n");
        strBuf.append(this.bedCount);
        return strBuf.toString();
    } // End of toString()
/---- Defining instance methods -/
Get method for the member "<code>id</code>".
@return Returns the id.
    public long getId() {
        return this.id;
Set method for the member "<code>id</code>".
HTDODO hm: Check whether it is possible to have setId method
using private accesss level with NetWeaver JPA-Provider!
@param id The id to set.
    private void setId(final long id) {
        this.id = id;
Get method for the member "<code>name</code>".
@return Returns the name.
    public String getName() {
        return this.name;
Set method for the member "<code>name</code>".
@param name The name to set.
    public void setName(final String name) {
        this.name = name;
Get method for the member "<code>deckLevel</code>".
@return Returns the deckLevel.
    public int getDeckLevel() {
        return this.deckLevel;
Set method for the member "<code>deckLevel</code>".
@param deckLevel The deckLevel to set.
    public void setDeckLevel(final int deckLevel) {
        this.deckLevel = deckLevel;
Get method for the member "<code>shipId</code>".
@return Returns the shipId.
    public int getShipId() {
        return this.shipId;
Set method for the member "<code>shipId</code>".
@param shipId The shipId to set.
    public void setShipId(final int shipId) {
        this.shipId = shipId;
Get method for the member "<code>bedCount</code>".
@return Returns the bedCount.
    public int getBedCount() {
        return this.bedCount;
Set method for the member "<code>bedCount</code>".
@param bedCount The bedCount to set.
    public void setBedCount(final int bedCount) {
        this.bedCount = bedCount;
} // End of class Cabin
[/code]
After that I created the TravelAgentBean, a Stateless Session Bean, implementing
a remote interface that allows construction and persisting of new Cabin objects:
[code]
package de.collogia.beans.session.stateless;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import de.collogia.beans.pojo.ship.Cabin;
Class that implements the <code>TravelAgentRemote</code> interface
and defines the business methods of the TravelAgent service.
@author Henning Malzahn ([email protected])
svn-revision:         $Rev:: 670                                           $:
svn-lasted-edited-by: $Author:: henning                                    $:
svn-last-changed:     $Date:: 2007-02-21 21:49:51 +0100 (Wed, 21 Feb 2007) $:
@Stateless
public class TravelAgentBean implements TravelAgentRemote {
    /** The <code>Log</code> object for this class. */
//    private static final Log LOGGER;
    /** The <code>PersistenceManager</code> object. */
    @PersistenceContext(unitName = "titan_cruises_pu")
    EntityManager em;
/---- Static initializer -/
//    static {
//        LOGGER = LogFactory.getLog(TravelAgentBean.class);
//    } // End of static initializer block
/---- Implementing remote interface methods -/
{@inheritDoc}
    public void createCabin(final Cabin cabin) {
        this.em.persist(cabin);
    } // End of createCabin()
} // End of class TravelAgentBean
[/code]
After that I created a Controller class containing a main method that looks up the remote
interface of the TravelAgentBena like explained in document "Accessing Enterprise JavaBeans Using JNDI
in SAP NetWeaver Application Server, Java EE 5 Edition" written by Validimir Pavlov of SAP NetWeaver
development team.
Unfortunately I receive an Exception after invoking the createCabin(...) method.
On the console of the NWDS I receive:
[code]
javax.ejb.EJBException: Exception in getMethodReady() for stateless bean sap.com/test2Earannotation|test2Ejb.jarannotation|TravelAgentBean;
nested exception is: com.sap.engine.services.ejb3.util.pool.PoolException: javax.ejb.EJBException: Cannot perform injection over bean instance
Caused by: java.lang.RuntimeException: The persistence unit is inconsistent:
The entity >>de.collogia.beans.pojo.ship.Cabin<< is mapped to the table >>cabin<<, which does not exist.
[/code]
But if I look at the log file located in "C:\NWAS_JAVAEE5\JP1\JC00\j2ee\cluster\server0\log\defaultTrace.0.trc"
I see the real reason is:
[code]
[EXCEPTION]
#6#1064#42000#You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax
to use near '"cabin"' at line 1#collnx02.collogia.de:3306:null:practise_titan_cruises#select * from "cabin"#com.mysql.jdbc.exceptions.MySQLSyntaxErrorException:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"cabin"' at line 1
     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
     at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2870)
     at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
     at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
     at com.mysql.jdbc.Connection.execSQL(Connection.java:3124)
     at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1149)
     at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1262)
     at com.sap.sql.jdbc.basic.BasicPreparedStatement.executeQuery(BasicPreparedStatement.java:99)
     at com.sap.sql.jdbc.direct.DirectPreparedStatement.executeQuery(DirectPreparedStatement.java:307)
     at com.sap.sql.jdbc.direct.DirectPreparedStatement.executeQuery(DirectPreparedStatement.java:264)
     at com.sap.engine.services.dbpool.wrappers.PreparedStatementWrapper.executeQuery(PreparedStatementWrapper.java:274)
[/code]
My goodness - what a long post - sorry for this - I hope I provided all information
necessary to deal with the issue.
Am I thinking in the right direction to blame attribute [code]<sql-engine>native_sql</sql-engine>[/code]
of file data-sources.xml for the beaviour? Are there any other argument options than native_sql?
Thanks in Advance!
Henning Malzahn

Hi Henning,
> Despite the fact it's working now I have to do some
> changes to my code currently
> developed using JBoss/ Hibernate combination.
> Hibernate allows you to have the
> default no-arg constructor with private visibility -
> any special reason for the fact that
> only protected is allowed on NetWeaver?
Here we strictly implemented the checks according to the requirements of the JPA specification. Technically, we could do with private constructors as well. But the JPA specifications requires the constructor to be protected to allow a JPA implementation to subclass entities if needed.
> The entities in the project are final classes
> so declaring a ctor protected doesn't really make
> sense...
For the same reason, your entities should not be final. Are we missing a check here ?
> Also the persistence.xml parameter
>
hibernate.hbm2ddl.auto
with the value of
> create-drop is very useful while
> developing the app - everytime you deploy the project
> you get a fresh database.
> Is there a comparable option for NetWeaver?
No, unfortunately, there is no comparable option in SAP JPA (yet). We understand that there is a need for forward mapping. We would have liked to delegate this task to the JPA design time (i.e. Dali). However, we had to discover that Dali does not perform this task properly and we can't recommend using it any more.
Consequently, there is no automatic schema generation in SAP JPA 1.0.
>
> Another thing is the extra TMP_SEQUENCE table which
> isn't necessary using JBoss and
> Hibernate - what's the reason for that?
With Hibernate Entity Manager, the id generation strategy in use with GenerationType.AUTO depends on the database dialect. This means that depending on the database dialect, IDENTITY columns, SEQUENCES or generator tables (TableHiLo) are required. As Hibernate has the before mentioned schema generation property this fact can be hidden to the user.
In SAP JPA, we are always using a table generator if GenerationType.AUTO is used. This allows for better portability across databases. It requires the table TMP_SEQUENCE. As we unfortunately do not have a schema generation capability, the user must create this table.
Best regards,
Adrian

GenerationType.AUTO doesn't work correctly with Kodo and MySQL

Greetings,
I'm migrating applications from JBoss/Hibernate to WebLogic/Kodo. The following column annotation:
@Id
@Column(name="CUSTOMER_ID")
@GeneratedValue(strategy = GenerationType.AUTO)
public long getCustomerId()
is supposed to generate auto-increment primary key in mysql. This is what happens with Hibernate. With Kodo, this seems to be equivalent with GenerationType.TABLE as a table named openjpa_sequence_table is created, containing sequence values. So what should one do in order to be able to use true auto-increment strategy with MySQL and Kodo ?
Many thanks in advance,
Nicolas

Hi Nicolas,
By setting the generation strategy to AUTO, you're essentially letting the JPA provider choose which strategy to use. It looks like Kodo is using the TABLE strategy by default and Hibernate is using the IDENTITY strategy here. You can set the strategy to IDENTITY if you want Kodo to behave similarly to Hibernate. However, it's worth pointing out that there may be a reason for Kodo not using the IDENTITY strategy by default.
The docs at: http://edocs.bea.com/wls/docs103/kodo/full/html/ref_guide_pc_oid.html#ref_guide_pc_oid_pkgen_autoinc
point out the following:
"Statements inserting into tables with auto-increment / identity columns cannot be batched. After each insert, Kodo must go back to the database to retrieve the last inserted auto-increment value to set back in the persistent object. This can have a negative impact on performance. "
- Matt

Class Not Found Exception when saving in Backend?

Hello all,
we are using JBOSS, Hibernate, Flex 3 and BlazeDS.
I have added a class ProjectDocument and it is configured identically to an existing class PartDocument.
I can successfully load the class in front end, but the save of the class leads to the following exception.
The jar is successfully compiled, and includes both PartDocument.class and ProjectDocument.class.
Does anyone know why BlazeDS cannot find the class?
regards and thanks
David
15:28:49,062 INFO [STDOUT] [BlazeDS]Cannot create class of type 'ProjectDocumen
t'.
flex.messaging.MessageException: Cannot create class of type 'ProjectDocument'.
Type 'ProjectDocument' not found.
        at flex.messaging.util.ClassUtil.createClass(ClassUtil.java:66)
        at flex.messaging.io.AbstractProxy.getClassFromClassName(AbstractProxy.j
ava:103)
        at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:430)
        at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:153)
        at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
        at flex.messaging.io.amf.Amf3Input.readArray(Amf3Input.java:371)
        at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:157)
        at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
        at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:473)
        at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:153)
        at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
        at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:135)
        at flex.messaging.io.amf.Amf0Input.readArrayValue(Amf0Input.java:326)
        at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:139)
        at flex.messaging.io.amf.Amf0Input.readObject(Amf0Input.java:95)
        at flex.messaging.io.amf.AmfMessageDeserializer.readObject(AmfMessageDes
erializer.java:226)
        at flex.messaging.io.amf.AmfMessageDeserializer.readBody(AmfMessageDeser
ializer.java:205)
        at flex.messaging.io.amf.AmfMessageDeserializer.readMessage(AmfMessageDe
serializer.java:125)
        at flex.messaging.endpoints.amf.SerializationFilter.invoke(Serialization
Filter.java:114)
        at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.ja
va:278)
        at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java
:322)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

Hi all,
we found the problem.
To read the class in flex we used:
registerClassAlias("ProjectDocument", ProjectDocument);
Then BlazeDS sent as class name just ProjectDocument and not the whole string.
So do not register classes - if you have a class coming from JAva that Flex does not recognise because it is not used in the mxml, just create a dummy variable.
Hope this helps someone else!

Moving to JSF 1.2_12 causing misc problems in my app

I have an app that was running nicely with JSF 1.2_04.p02. But when I moved to JSF 1.2_12, I started having several problems..
(1) h:selectOneMenu was not rendering my onchange event (I was able to resolve this by fixing my classpath. See http://forums.sun.com/thread.jspa?threadID=5409440)
(2) a4j:support does not appear to be working with h:selectOneMenu. The a4j:support action is no longer being invoked.
(3) ui:include does not appear to be working. For example, this code
                    <div id="terminalSelectionDiv" class="divClear">
                     <ui:include src="virtualPOSTopNav.xhtml" />
                    </div>... renders as ...
                    <div id="terminalSelectionDiv" class="divClear">
                    </div>What am I missing? I was able to fix #1 by adjusting my classpath. Are #2 & #3 classpath issues as well?
The am currently trying to use JSF-API 1.2_12, JSF-IMPL 1.2_12, Facelets 1.1.14, Richfaces 3.3.2.CR1, JBoss EL 1.0_02.CR4 (plus other misc APIs). But, as I mentioned, I did not modify my code. All I did was started trying to run my code with newer versions of JSF, Facelets and Richfaces. As I try different versions of these APIs, the problems seems to appear when I start using JSF 1.2_12 and the goes away when I revert back to an older version.
Here's a rundown of the jar files in my classpath...
My ear contains the following jar files...
com.echo.myapp.web-1.0.0-SNAPSHOT.war
com.echo.myapp.ejb-1.0.0-SNAPSHOT.jar
com.echo.myapp.jmx-1.0.0-SNAPSHOT.sar
My ear's APP-INF/lib directory in the ear file contains the following jar files (All jar files are in the ear's APP-INF/lib dir. No jar files are in the war file.)
com.echo.myapp.domain-1.0.0-SNAPSHOT.jar
com.echo.myapp.util-1.0.0-SNAPSHOT.jar
com.echo.common.myappremoteapi-1.0.0-SNAPSHOT.jar
com.echo.common.web-1.0.0-SNAPSHOT.jar
commons-beanutils-1.7.0.jar
commons-codec-1.2.jar
commons-digester-1.8.1.jar
commons-fileupload-1.1.1.jar
commons-httpclient-3.1.jar
commons-io-1.4.jar
commons-lang-2.2.jar
commons-logging-1.0.4.jar
gwt-user-1.4.60.jar
hibernate-search-3.1.0.GA.jar
itext-2.1.2.jar
itext-rtf-2.1.2.jar
jboss-el-1.0_02.CR4.jar
jboss-seam-2.2.0.GA.jar
jboss-seam-debug-2.2.0.GA.jar
jboss-seam-jul-2.2.0.GA.jar
jboss-seam-pdf-2.2.0.GA.jar
jboss-seam-remoting-2.2.0.GA.jar
jboss-seam-ui-2.2.0.GA.jar
jcifs-1.3.5.jar
jcommon-1.0.9.jar
jfreechart-1.0.9.jar
jibx-bind-1.1.5.jar
jibx-extras-1.1.5.jar
jibx-run-1.1.5.jar
jsf-api-1.2_12.jar
jsf-facelets-1.1.14.jar
jsf-impl-1.2_12.jar
lucene-core-2.4.0.jar
quartz-1.6.1-RC1.jar
richfaces-api-3.3.2.CR1.jar
richfaces-impl-3.3.2.CR1.jar
richfaces-ui-3.3.2.CR1.jar
slf4j-api-1.4.2.jar
slf4j-log4j12-1.4.2.jar
stax-api-1.0.1.jar
wstx-asl-3.2.1.jar
xpp3_min-1.1.3.4.O.jar
xstream-1.1.3.jar
JBOSS_HOME/lib contains...
commons-codec.jar
commons-httpclient.jar
commons-logging.jar
concurrent.jar
getopt.jar
jboss-common.jar
jboss-jmx.jar
jboss-system.jar
jboss-xml-binding.jar
log4j-boot.jar
PwdSetter.jar
JBOSS_HOME/lib/endorsed contains...
serializer.jar
xalan.jar
xercesImpl.jar
JBOSS_HOME/server/default/lib contains...
activation.jar
antlr.jar
autonumber-plugin.jar
bcel.jar
bindingservice-plugin.jar
bsf.jar
bsh-deployer.jar
bsh.jar
cglib.jar
classes12-10.2.0.2.0.jar
commons-codec.jar
commons-collections.jar
commons-httpclient.jar
commons-logging.jar
dom4j.jar
ehcache-1.6.2.jar
ejb3-persistence.jar
el-api.jar
hibernate-annotations.jar
hibernate-entitymanager.jar
hibernate3.jar
hsqldb-plugin.jar
hsqldb.jar
javassist.jar
jaxen.jar
jboss-cache-jdk50.jar
jboss-common-jdbc-wrapper.jar
jboss-ejb3x.jar
jboss-hibernate.jar
jboss-j2ee.jar
jboss-jaxrpc.jar
jboss-jaxws.jar
jboss-jca.jar
jboss-jsr77.jar
jboss-jsr88.jar
jboss-management.jar
jboss-monitoring.jar
jboss-remoting-int.jar
jboss-remoting.jar
jboss-saaj.jar
jboss-serialization.jar
jboss-srp.jar
jboss-transaction.jar
jboss-vfs.jar
jboss.jar
jbossjta-integration.jar
jbossjta.jar
jbossmq.jar
jbosssx.jar
jbossts-common.jar
jbossws-common.jar
jbossws-framework.jar
jbossws-jboss42.jar
jbossws-spi.jar
jmx-adaptor-plugin.jar
jnpserver.jar
joesnmp.jar
jpl-pattern.jar
jpl-util.jar
jsp-api.jar
jtds-1.2.2.jar
log4j-snmp-appender.jar
log4j.jar
mail-plugin.jar
mail.jar
properties-plugin.jar
quartz.jar
scheduler-plugin-example.jar
scheduler-plugin.jar
servlet-api.jar
xmlentitymgr.jar
The classpath in the manifest of my war file contains references to the following jar files...
APP-INF/conf
APP-INF/lib/com.echo.common.web-1.0.0-SNAPSHOT.jar
APP-INF/lib/jsf-facelets-1.1.14.jar
APP-INF/lib/jboss-seam-2.2.0.GA.jar
APP-INF/lib/xstream-1.1.3.jar
APP-INF/lib/xpp3_min-1.1.3.4.O.jar
APP-INF/lib/jboss-el-1.0_02.CR4.jar
APP-INF/lib/jboss-seam-ui-2.2.0.GA.jar
APP-INF/lib/jboss-seam-2.2.0.GA.jar
APP-INF/lib/jboss-seam-jul-2.2.0.GA.jar
APP-INF/lib/commons-beanutils-1.7.0.jar
APP-INF/lib/commons-lang-2.2.jar
APP-INF/lib/jboss-seam-pdf-2.2.0.GA.jar
APP-INF/lib/itext-2.1.2.jar
APP-INF/lib/itext-rtf-2.1.2.jar
APP-INF/lib/jfreechart-1.0.9.jar
APP-INF/lib/jcommon-1.0.9.jar
APP-INF/lib/jboss-seam-debug-2.2.0.GA.jar
APP-INF/lib/gwt-user-1.4.60.jar
APP-INF/lib/hibernate-search-3.1.0.GA.jar
APP-INF/lib/commons-logging-1.0.4.jar
APP-INF/lib/lucene-core-2.4.0.jar
APP-INF/lib/slf4j-api-1.4.2.jar
APP-INF/lib/com.echo.myapp.util-1.0.0-SNAPSHOT.jar
APP-INF/lib/commons-httpclient-3.1.jar
APP-INF/lib/commons-codec-1.2.jar
APP-INF/lib/jcifs-1.3.5.jar
APP-INF/lib/commons-io-1.4.jar
APP-INF/lib/commons-fileupload-1.1.1.jar
APP-INF/lib/richfaces-api-3.3.2.CR1.jar
APP-INF/lib/richfaces-impl-3.3.2.CR1.jar
APP-INF/lib/commons-digester-1.8.1.jar
APP-INF/lib/richfaces-ui-3.3.2.CR1.jar
APP-INF/lib/jsf-impl-1.2_12.jar
APP-INF/lib/jsf-api-1.2_12.jar

Which JAR's exactly have you added/replaced? And how does the WEB-INF/lib look like?
Here's some technical background information which may be of use:
In case of an EAR there are basically four places where classes will be looked up for classloading (they are all covered by the classpath).
1) JRE/lib (where you installed Java SE)
2) appserver/lib (in your case JBOSS_HOME/*).
3) APP-INF/lib (of your EAR)
4) WEB-INF/lib (of your WAR)
To start, there should in fact be no duplicates of the same libs in the mentioned locations. If a duplicate is really necessary for some reasons, then ensure that the versioning is the same and/or that you understand the classloading policy. The JRE/lib and appserver/lib should be kept default all the time and in no way be changed nor duplicated in other places. The APP-INF/lib less or more denotes a shared library for all EJB's and WAR's inside the same EAR. The WEB-INF/lib should contain webapp-specific libraries only.
It depends on the (usually limited configureable) classloading policy of your appserver in which order the mentioned classpath paths will be scanned for the classes to be loaded. Usually, when the appserver starts up and does all its in-house initialization, it will look for classes in appserver/lib and JRE/lib only. Usually, when you request your webapp which is deployed as an EAR, the WEB-INF/lib will first be scanned and then APP-INF/lib and then appserver/lib and then JRE/lib. So if you for example upgraded a lib in APP-INF/lib only while there's still an older one in WEB-INF/lib, your app will break. The appserver's classloading policy is usually only configureable to swap APP-INF/lib and WEB-INF/lib in the search order for classes.

Memory analyzer, how to get the to problem root/object

Hi,
I've viewed the live tutorial from https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f0a5d007-a35f-2a10-da9f-99245623edda.
My case was, i Dominator Tree, all top ten classes (with 95% retained Heap) were from org.hibernate.*, and only a few of my classes (with 1% retained heap) which were from http request/respond thread.
Deep into those top classes, it didn't seem to link to my class; however my web app (use jboss, hibernate/ejb3) was runing of memory (GC overhead limit exceed).
I'm wondering, any other way to find the problem with help of SAP Memory analyzer?
Thanks
John
Toronto

Hi
Check out this guide and update the thread thereafter: https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/40244428-5703-2a10-17af-9e878922f900
Ravi

What's your strategy for learning Java technologies?

Or, in other words, how do YOU acquire knowledge that is necessary for implementing Java technologies?
After having spent one-and-a-half years developing an enterprise app, I've gained lots of knowledge about Java and some surface knowledge about its related technologies (JBoss, Hibernate, Ant, XDoclet, NetBeans and probably some others I can't think of at the moment).
I'm now realizing that -- although the standalone prototype version of my program is growing mature -- I've still got lots to learn for refactoring it to a web platform. For example, I 've done small test projects using Servlets, but haven't done any work with JSP (or HTML for that matter) yet.
Now, I'm sure I can learn JSP etc., but the questions I ask myself are: how long will it take?
It's a rhetorical question of course (I don't expect an answer from you, the reader) However, it's an important issue because the months or years I spend fumbling around learning these new technologies, are time I could otherwise spend on the business logic and functionality of my program.
So, how do you guys acquire knowledge of technologies? Official training perhaps? Or do you simply experiment until it works? Or do you rely on your company's knowledge base (e.g. someone in your company knows how it works)? Or do you get prototypes built from someone who already knows how it works?
I�m really curious about this and would appreciate your thoughts.
Thanks in advance,
P

Well, it seems like most of you simply read the
various texts and try the vendors' examples. I'm
surprised that no one mentioned ever having bought a
prototype application from the onset. "bought"? What's that mean? You don't buy prototypes. You download evaluation versions, maybe.
I try to find sample code and tweak it to see the effects. Otherwise, I start writing small sample code an build on that.
I consider myself a reasonably competent core Java
programmer, but I had serious difficulty configuring
and merging its related technologies. There were so
many disjointed pieces of instructional information
that the additional research time really hurt our
budget severely. Not an uncommon thing, I'm sure. There's a lot of stuff. But don't bother learning all of it. Not in detail, at least. It's a good idea to familiarize yourself with the names of packages/libraries and what they do. But only really learn what you need to learn for what you need to do. The next project you will probably need other things, so you learn them then.
bsampieri,
I've setup Tomcat and tried the examples--in fact, I
normally follow tutorials for all products I hope to
use. Problem is, the examples and tutorials never
address my specific needs. So, I usually inch toward
my goal by spending weeks or months in forums to
continue where the tutorials leave off. Anything complex is going to not be there.... the trick is to identify pieces that you can pull out to build more complex apps. And the fact that JSP/servlets have the issue of being compounded by all the HTML/CSS/JS and HTTP protocol ... I don't want to say limitiations, exactly... Well, it just makes things more complex and harder to know what you need.
Perhaps you guys are much faster and smarter than
I...or you have a much bigger budget :)Probably not... on either account.

Problem with EJB3 - BlazeDS on Glassfish

Hi, I'm new in BlazeDS. I have a problem with Flex application using BlazeDS on Glassfish. I want to call sayHello method from EJB 3 (stateful or stateless) from Flex but I can't correctly configure BlazeDS. I search in internet from two weeks for examples, but most of them is for JBoss. Can somebody show me full config for BlazeDS, Flex application (and Glassfish if it's needed).
I should be grateful for any help.

Lucasz, did you find out how to configure BlazeDS on GlassFish ?
I'm having trouble also. We need to run on glassfish/netbeans/toplink, which is not quite common in the doc's/web. Even granite is very eclipse/jboss/hibernate oriented.
I just need some good EJB3Factory available, or an example, and a way to match JNDI calls from glassfish to my blazeDS destinations.
Any help is greatly appreciated.
el sebastian
upside down, from south america.

Why database related code not wriiten in jsp's

hi all
what all resons are there for which database related code
is not written in jsp's
one thing that i know is
it's not a j2ee architecture to do so
so is it the thing that doing so hits the performance issue
thanx

Me, I'm still trying to get my head around Java 1.5, J2EE, Tomcat, JBoss, and Oracle RAC (both programming and DBAing)... My head hurts... Badly...
Back to the topic, though... I also agree with the previous posters...
I agree there are exceptions to the "no JDBC in JSP rule of thumb"- I have a JSP-based generic table browser as a tool for emergency maintenance from a (presumably) hostile network, it provides read-only access and automatic password rotation. The flexibility of having it in the JSP has saved my bacon in a crisis; when travelling, I had to talk a non-programmer through applying a code fix (damn developers, using reserved words as column name...)( I had the source on my laptop...). To get a class file fixed, I would have had to get a programmer on the phone, and get the server to reload the class which in our environment at the time required an application restart... The project I work on is about 70 man-years of work, mostly Java, and we have maybe 6 or 8 JSPs that access the DB directly...
Most of the time though, good design says that you access a particular "type" of data (table or group of tables) in the same "chunk" of code, jsp or class file. It's a lot harder to share a jsp among different invokers than it is a class file. It's also better to isolate presentation from data access.
Imagine that you have a "USER" table, with first name, last name, username, and password. You program a "login" jsp, a user "edit" jsp and an administrator "edit" jsp. Then a security audit declares that saving an unexcrypted password in the database is insecure; you now have to change evey place that can access the password. If the user object was accessed through a single Java class file, then there would be only one place to fix. Of course, it's possible to use jsp includes to simulate class files, but that's just about as much work as creating the class file to begin with, with more problems.
Another big advantage of keeping your data access out of JSPs is that you can write unit tests much more easily for the Java classes, using something like JUnit. You can have a set of tests for all your persisted data, which can be run anytime your data model changes. This makes it a lot harder for "side effect" bugs to creep into your code.

EJB QL: Passing array of enum to SELECT * WHERE a IN () clause

Hello,
I am trying to pass an array of enum to EJB QL as followed:
em.createQuery("FROM OrderInfo o WHERE o.ordStatus IN (:ordStatus)")
.setParameter("ordStatus", ordStatsStr)Note that o.ordStatus is of type enum OrderStatus.
I've tried to set "ordStatus" as String (i.e. 'OPEN', 'CLOSED'), as well as an array of enum but EJB QL would not parse them (perhaps for a good reason). EJB QL (I use JBoss + Hibernate) threw the following exception (or similar depending on whether I passed in an array of enum or a String):
org.hibernate.TypeMismatchException: named parameter [ordStatus] not of expected type;
expected = class ....OrderStatus; but was =java.lang.StringCan someone show me the way to set the IN clause with an array of enum?
Thanks

I suppose that your enum declaration is like
public enum OrderStatus{
OPEN,
CLOSED
The exception remarks that the valid type must be OrderStatus. I think that you must change your sentence by
em.createQuery("FROM OrderInfo o WHERE o.ordStatus IN (:ordStatus)")
.setParameter("ordStatus", OrderStatus.OPEN);
On the other hand, for the array option I think that you must use setParameterList like this
OrderStatus options[] = new OrderStatus[2];
options[0] = OrderStatus.OPEN;
options[1] = OrderStatus.CLOSED;
em.createQuery("FROM OrderInfo o WHERE o.ordStatus IN (:ordStatus)")
.setParameterList("ordStatus", options);
I hope it helps you
hayken.

Setting packetSize given in JDBCDriver.

I am using, Java, Jboss, Hibernate, SqlServer 2008 R2, getting following exception
WARNING [com.microsoft.sqlserver.jdbc.internals.TDS.Reader] (pool-26-thread-7) ConnectionID:4 TDS header contained invalid packet length:12590; packet size:8000
SEVERE [com.microsoft.sqlserver.jdbc.internals.TDS.Reader] (pool-26-thread-7) ConnectionID:4 got unexpected value in TDS response at offset:7992
ERROR [STDERR] (pool-25-thread-2) Exception in thread "pool-25-thread-2"
ERROR [STDERR] (pool-25-thread-2) org.hibernate.TransactionException: JDBC rollback failed
[STDERR] (pool-25-thread-2) at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:204)
[STDERR] (pool-25-thread-2) at com.wideplay.warp.persist.hibernate.HibernateLocalTxnInterceptor.rollbackIfNecessary(HibernateLocalTxnInterceptor.java:149)
[STDERR] (pool-25-thread-2) at com.wideplay.warp.persist.hibernate.HibernateLocalTxnInterceptor.invoke(HibernateLocalTxnInterceptor.java:72)
[STDERR] (pool-25-thread-2) at com.softpak.marserm.engine.library.impl.JobReportStatusUtil.updateReportStatus(Unknown Source)
[STDERR] (pool-25-thread-2) at com.softpak.marserm.engine.library.impl.ExecutableJob.run(Unknown Source)
[STDERR] (pool-25-thread-2) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
[STDERR] (pool-25-thread-2) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[STDERR] (pool-25-thread-2) at java.lang.Thread.run(Thread.java:662)
[STDERR] (pool-25-thread-2) Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
[STDERR] (pool-25-thread-2) at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
[STDERR] (pool-25-thread-2) at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(SQLServerConnection.java:304)
ERROR [STDERR] (pool-25-thread-2) at com.microsoft.sqlserver.jdbc.SQLServerConnection.rollback(SQLServerConnection.java:1655)
ERROR [STDERR] (pool-25-thread-2) at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcRollback(BaseWrapperManagedConnection.java:697)
ERROR [STDERR] (pool-25-thread-2) at org.jboss.resource.adapter.jdbc.WrappedConnection.rollback(WrappedConnection.java:500)
ERROR [STDERR] (pool-25-thread-2) at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:217)
ERROR [STDERR] (pool-25-thread-2) at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:196)
ERROR [STDERR] (pool-25-thread-2) ... 7 more
I need to increase packetSize given in JDBCDriver (sqljdbc4), How can I do this?
I tried many things including defining <packetSize>32767</packetSize> in ds.xml but no use, getting this exception now
SEVERE [com.microsoft.sqlserver.jdbc.internals.TDS.TOKEN] (pool-27-thread-7) ConnectionID:1: FetchBufferTokenHandler: Encountered unexpected unknown token (0x30)
SEVERE [com.microsoft.sqlserver.jdbc.internals.TDS.Reader] (pool-27-thread-7) ConnectionID:1 got unexpected value in TDS response at offset:7282
SEVERE [com.microsoft.sqlserver.jdbc.internals.TDS.TOKEN] (pool-27-thread-7) ConnectionID:1: getNextResult: Encountered unexpected unknown token (0x30)
SEVERE [com.microsoft.sqlserver.jdbc.internals.TDS.Reader] (pool-27-thread-7) ConnectionID:1 got unexpected value in TDS response at offset:7282
Edited by: 1007286 on 22-May-2013 00:23

This isn't the place to ask questions about Microsoft products. I would try to find a manual for the JDBC driver on the Microsoft website if I were you. But I'm a curious chap so I did a quick Google for "sqlserver jdbc packetsize" and turned this up as the first result:
http://msdn.microsoft.com/en-us/library/ms378988%28v=sql.90%29.aspx
This documentation lists the property exactly as you say. However one (old) source of information is not enough, I check more results.
http://docs.oracle.com/cd/E13157_01/wlevs/docs30/jdbc_drivers/mssqlserver.html
This documentation has an interesting tidbit:
"NOTE: If SSL is enabled, the driver communicates with database protocol packets set by the server’s default packet size. Any value set by the PacketSize property is ignored. "
I would read more documentation if I were you.

JBoss/Hibernate/InstantClient/RAC

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