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org.hibernate.TransientObjectException?
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created by <a href="http://community.jboss.org/people/aupres">Joseph Hwang</a> in <i>EJB3</i> - <a href="http://community.jboss.org/message/621364#621364">View the full discussion</a>
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<div class="jive-rendered-content"><p>Pls, Check my codes. I made two Entity Beans.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-Members.java</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>package com.aaa.ejb3;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.io.Serializable;</p><p>import java.util.ArrayList;</p><p>import java.util.Collection;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.Column;</p><p>import javax.persistence.Entity;</p><p>import javax.persistence.FetchType;</p><p>import javax.persistence.Id;</p><p>import javax.persistence.JoinColumn;</p><p>import javax.persistence.JoinTable;</p><p>import javax.persistence.OneToMany;</p><p>import javax.persistence.Table;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Entity</p><p>@Table(name = "family")</p><p>public class Members implements Serializable {</p><p>@Id</p><p>@Column(name = "EMP_ID")</p><p>private String id ;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Column(name = "EMP_Passwd")</p><p>private String passwd ;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Column(name = "EMP_Name")</p><p>private String name ;</p><p>  </p><p>@OneToMany(fetch=FetchType.EAGER)<br/>@JoinTable(name="info", joinColumns = {@JoinColumn(name = "EMP_Name")})<br/>private Collection<Records> record = new ArrayList();<br/>....</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}<br/>  </p><p>- Records.java</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>package com.aaa.ejb3;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.io.Serializable;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.Column;<br/>import javax.persistence.Entity;<br/>import javax.persistence.GeneratedValue;<br/>import javax.persistence.GenerationType;<br/>import javax.persistence.Id;<br/>import javax.persistence.Table;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Entity<br/>@Table(name = "info")<br/>public class Records implements Serializable {<br/>  </p><p>@Id<br/>@GeneratedValue(strategy=GenerationType.TABLE)<br/>@Column(name = "EMP_ID")<br/>private int i;<br/>  </p><p>@Column(name = "EMP_Name")<br/>private String name;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>....</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and I added EntityManager in EJB Bean like below</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-MappingTestBean.java</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>package com.aaa.ejb3;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.util.Collection;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.ejb.Stateless;<br/>import javax.persistence.EntityManager;<br/>import javax.persistence.PersistenceContext;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Stateless<br/>public class MappingTestBean implements IMappingTestPort {<br/>  </p><p>@PersistenceContext(unitName="MyFamily")<br/>EntityManager em;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public Collection<Records> getFamilyMember(String name) {<br/>// TODO Auto-generated method stub<br/>Members m = (Members)em.find(Members.class, name);<br/>Collection<Records> records = m.getRecord();<br/>  </p><p>return records;<br/>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void setFamilyMember(Members m){<br/>em.persist(m);<br/>}</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Deployment of EJB3 Beans are successfull.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In JSP I invoke the method</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>try {<br/>Context ctx = new InitialContext();<br/>IMappingTestPort port = (IMappingTestPort) ctx.lookup("MappingTestBean/remote");<br/>  </p><p>Records r = new Records();<br/>r.setName("aaa");<br/>r.setAccount("111-2222");<br/>r.setHobby("bbb");<br/>r.setPhone(021112222);<br/>  </p><p>Members m = new Members();<br/>m.setId("aupres");<br/>m.setPasswd("aaa");<br/>m.setName("vvv");<br/>m.getRecord().add(r);<br/>  </p><p>port.setFamilyMember(m);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But Exception Occurs. The Exception is</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>20:02:43,005 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session<br/>org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.aaa.ejb3.Records<br/>at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:242)<br/>at org.hibernate.type.EntityType.getIdentifier(EntityType.java:430)<br/>at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:101)<br/>at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:777)<br/>at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1165)<br/>at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:58)<br/>at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)<br/>at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)<br/>at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:171)<br/>at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)<br/>at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)<br/>at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)<br/>at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:365)<br/>at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:504)<br/>at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:101)<br/>at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:269)<br/>at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:89)<br/>at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)<br/>at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1423)<br/>at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:137)<br/>at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)<br/>at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:170)<br/>at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)<br/>at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:190)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:421)<br/>at org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:85)<br/>at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:72)<br/>at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:62)<br/>at $Proxy310.invoke(Unknown Source)<br/>at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207)<br/>at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:164)<br/>at $Proxy309.setFamilyMember(Unknown Source)<br/>at org.apache.jsp.index_jsp._jspService(index_jsp.java:92)<br/>at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)<br/>at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)<br/>at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)<br/>at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)<br/>at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)<br/>at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)<br/>at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)<br/>at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)<br/>at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br/>at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)<br/>at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)<br/>at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)<br/>at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)<br/>at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)<br/>at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)<br/>at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)<br/>at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br/>at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)<br/>at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br/>at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)<br/>at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)<br/>at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)<br/>at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)<br/>at java.lang.Thread.run(Thread.java:662)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I need your advice! Thanks in advance.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Best Regards.</p></div>
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