Re: Bind main/access classes to JNDI

Armin, Thank you for your response.
   
  If I specify JNDI name like jdbc/testdsn in the repository_database.xml, everything works fine. 
  But the problem is, it makes a direct JNDI connection and Websphere is not letting me use the Resource-Ref settings set in the web.xml file.
   
  So I tried to use the indirect JNDI by creating a startup class that will bind the datasource alias to the JNDI. For this I followed the weblogic example from the OJB site.
   
  I had a create my class that implements serializable in order to bind it to the JNDI. is there any OJB class that I can use to bind the JNDI name in my startup class.
   
  Please help.
   
  Thanks.

Armin Waibel <[email protected]> wrote:
  Hi,

k jee wrote:
> Hi All,
> 
> I am trying to use indirect JNDI for my web app in websphere application server.
> 
> I followed the following doc and created OjbPbstartup class as explained.
> 
> http://db.apache.org/ojb/docu/guides/deployment.html#bind-to-jndi
> 
> When I try to access the getObjectByQuery function, I get the following error. Can any one help? Please....

I assume that that the CCE occur while jndi lookup of the DataSource in 
method ConnectionFactoryAbstractImpl#newConnectionFromDataSource


InitialContext ic = new InitialContext();
ds = (DataSource) ic.lookup(jcd.getDatasourceName());


In the mapping of the jdbc-connection-descriptor you have to specify the 
jndi-name of the DataSource (to access the DB) defined on your 
appServer. It seems you set the name of your OJB access-class (bound to 
JNDI by yourself) instead.

regards,
Armin

> 
> [Servlet Error]-[com/mydir/pkg/OjbPbStartup incompatible with javax/sql/DataSource]: java.lang.ClassCastException: com/mydir/pkg/OjbPbStartup incompatible with javax/sql/DataSource
> at java.lang.Throwable.(Throwable.java)
> at java.lang.Throwable.(Throwable.java)
> at java.lang.ClassCastException.(ClassCastException.java:53)
> at org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.newConnectionFromDataSource(Unknown Source)
> at org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.lookupConnection(Unknown Source)
> at org.apache.ojb.broker.accesslayer.ConnectionFactoryManagedImpl.lookupConnection(Unknown Source)
> at org.apache.ojb.broker.accesslayer.ConnectionManagerImpl.getConnection(Unknown Source)
> at org.apache.ojb.broker.accesslayer.StatementManager.getPreparedStatement(Unknown Source)
> at org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(Unknown Source)
> at org.apache.ojb.broker.accesslayer.RsQueryObject.performQuery(Unknown Source)
> at org.apache.ojb.broker.accesslayer.RsIterator.(Unknown Source)
> at org.apache.ojb.broker.core.RsIteratorFactoryImpl.createRsIterator(Unknown Source)
> at org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(Unknown Source)
> at org.apache.ojb.broker.core.PersistenceBrokerImpl.getIteratorFromQuery(Unknown Source)
> at org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByQuery(Unknown Source)
> at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(Unknown Source)
> at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(Unknown Source)
> at com.mydir.pkg.dao.tmpDAO.findByPK(tmpDAO.java)
> at com.mydir.pkg.actions.UserLoginAction.execute(UserLoginAction.java:136)
> at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
> at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
> at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
> at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
> at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
> at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
> at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
> at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
> at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
> at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
> at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:61)
> at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:974)
> at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:564)
> at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:200)
> at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:119)
> at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:276)
> at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
> at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
> at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
> at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
> at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:618)
> at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
> at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java)
> 
> 
> ---------------------------------
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