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pavan.technology@gmail.co
 Post subject: Can we access DS on AppServer in standalone app using hbm
PostPosted: Thu Dec 29, 2005 10:48 am 
Newbie

Joined: Tue Nov 15, 2005 8:09 am
Posts: 2
Hibernate version:3.0

Hi,

I have a standalone java application that uses hibernate for persistence.
I want make the hibernate to use a datasource configuration so as to
facilitate jdbc connection pooling. Is there any way that I can configure
the datasource on a AppServer and use it in my app which is running
outside of the container.

In short , is hibernate used in a standalone java app will be able to recognize
and use the datasource configured on a appserver. If yes, how to do that.

Can somebody help me on this.


Thanks in advance,
Pavan Kumar
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pavan.technology@gmail.co
 Post subject:
PostPosted: Mon Jan 02, 2006 7:49 am 
Newbie

Joined: Tue Nov 15, 2005 8:09 am
Posts: 2
Hi

I tried to configure the "hibernate.connection.datasource" property in hibernate to make use of a DS configured on JBoss. I have also set other properties like the ""hibernate.jndi.url" etc .

But it seems that this stratergy is not woking. Hbm is not able to bound to the datasource. The hbm config file is :
Quote:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.cglib.use_reflection_optimizer">true</property>
<property name="hibernate.connection.datasource">java:jdbc/myDB_DS</property>
<property name="hibernate.jndi.url">jnp://localhost:1099/</property>
<property name="hibernate.jndi.class">org.jnp.interfaces.NamingContextFactory</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JTATransactionFactory </property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
...............
...............
</session-factory>
</hibernate-configuration>

I have even tried changing the "...connection.datasource" property to java:/comp/env/jdbc/myDB_DS, simply jdbc/myDB_DS etc ,but still i am getting the same error.

The error stack trace is :
Quote:
javax.naming.NameNotFoundException: comp not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:514)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:522)
at org.jnp.server.NamingServer.getObject(NamingServer.java:528)
at org.jnp.server.NamingServer.lookup(NamingServer.java:252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:610)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:44)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:362)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
at com.sirvisetti.esb.modo.persistence.DashboardInteraction.getSession(DashboardInteraction.java:228)
at com.sirvisetti.esb.modo.persistence.DashboardInteraction.createDashboardEntry(DashboardInteraction.java:108)
at com.sirvisetti.esb.DbRequestInsertor.process(DbRequestInsertor.java:108)
at org.servicemix.components.util.OutBinding.onMessageExchange(OutBinding.java:51)
........
at java.lang.Thread.run(Thread.java:595)
org.hibernate.HibernateException: Could not find datasource
at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:48)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:362)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
.......
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.naming.NameNotFoundException: comp not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:514)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:522)
at org.jnp.server.NamingServer.getObject(NamingServer.java:528)
at org.jnp.server.NamingServer.lookup(NamingServer.java:252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:610)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:44)
... 71 more

Can somebody give a good idea of how to resolve this problem.

Thanks,
Pavan Kumar
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timrobertson100
 Post subject:
PostPosted: Mon Jan 02, 2006 8:20 am 
Regular
Regular

Joined: Wed Jun 29, 2005 11:14 pm
Posts: 119
Location: København
I tried to do similar and found:

Quoted from Steve of the Hibernate team (So I guess pretty accurate) at http://forum.hibernate.org/viewtopic.ph ... 918789d01b

"Datasources in JBoss are not available remotely, as it does not provide any sort of RMI-JDBC capability."

So I gave up...
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timrobertson100
 Post subject:
PostPosted: Mon Jan 02, 2006 8:24 am 
Regular
Regular

Joined: Wed Jun 29, 2005 11:14 pm
Posts: 119
Location: København
I was using an old JBoss though...

Have you read:
http://wiki.jboss.org/wiki/Wiki.jsp?pag ... ataSources

Configuring a DataSource for remote usage
As of jboss-4.0.0 there is support for accessing a DataSource from a remote client. The one change that is neccessary for the client to be able to lookup the DataSource from jndi is to specify use-java-context=false as shown here:

<datasources>
<local-tx-datasource>
<jndi-name>GenericDS</jndi-name>
<use-java-context>false</use-java-context>
<connection-url>...</connection-url>
...
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