Hi,
And now we have the same problem too.
Why and how to solve it?
Thanks!
----- Original Message -----
From: "Anil Kona" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, February 14, 2002 2:58 AM
Subject: [castor-dev] Strange Exception with Inheritance and 1:N
Hi,
I am getting the following exception when trying to load an object
Here is my object model
Object ItemImpl has an attribute called 'CustomerImpl' and has a collection of
participants.(ParticipantImpl)
CustomerImpl extends ParticipantImpl
and when a particualr ItemImpl object has X customer as an attribute and also same X
in the collection of participants, I see this exception
Please see the enclosed mapping files.
We are using Castor 0.9.3.. I also tried with Castor0.9.3.9 and see the same exception
any ideas ?
Thanks,
-Anil
org.exolab.castor.jdo.PersistenceException: Requested to load/fetch an object of type
com.againtech.ce.customer.CustomerImpl, where persistent storage
returned an object of type class com.againtech.ce.participant.ParticipantImpl
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:221)
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:194)
at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:743)
at org.exolab.castor.persist.LockEngine.load(LockEngine.java:359)
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:236)
at org.exolab.castor.persist.QueryResults.fetch(QueryResults.java:91)
at
org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQueryImpl.java:80)
at
org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQueryImpl.java:64)
at
com.againtech.ce.search.CastorCursorHandler.hasNext(CastorCursorHandler.java:64)
at com.againtech.ce.util.CastorHelper.search(CastorHelper.java:866)
at com.againtech.ce.bean.BaseDAO.search(BaseDAO.java:242)
at com.againtech.ce.bean.BaseServicerBean.search(BaseServicerBean.java:1775)
at com.againtech.ce.bean.BaseServicerBean.search(BaseServicerBean.java:846)
at
com.againtech.ce.transaction.sales.SalesTransactionServicerBean.searchItem(SalesTransactionServicerBean.java:208)
at java.lang.reflect.Method.invoke(Native Method)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:543)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:87)
at org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxInterceptorCMT.java:133)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:307)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:99)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:128)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:195)
at
org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:286)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke(JRMPContainerInvoker.java:483)
at
org.jboss.ejb.plugins.jrmp.interfaces.GenericProxy.invokeContainer(GenericProxy.java:335)
at
org.jboss.ejb.plugins.jrmp.interfaces.StatelessSessionProxy.invoke(StatelessSessionProxy.java:123)
at $Proxy259.searchItem(Unknown Source)
at
com.againtech.ce.transaction.sales.struts.SearchResultsItemAction.search(SearchResultsItemAction.java:69)
at
com.againtech.ce.struts.AbstractSearchResultsAction.perform(AbstractSearchResultsAction.java:184)
at
org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1786)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1585)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:509)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:812)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)
at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
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