[EJB3] - Field 'record_EMP_ID' doesn't have a default value
by Joseph Hwang
Joseph Hwang [http://community.jboss.org/people/aupres] created the discussion
"Field 'record_EMP_ID' doesn't have a default value"
To view the discussion, visit: http://community.jboss.org/message/621434#621434
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I solved org.hibernate.TransientObjectException (http://community.jboss.org/thread/171019?tstart=0) by adding "@OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL)"
But this time values can't be inserted to DB.
OS : Windows 7
JDK : JDK 1.6
JBoss : JBoss 5.1.0.GA
DB : MySQL 5.5
Error is "Field 'record_EMP_ID' doesn't have a default value"
*- Members.java*
@Entity
@Table(name = "family")
public class Members implements Serializable {
@Id
@Column(name = "EMP_ID")
private String id ;
@Column(name = "EMP_Passwd")
private String passwd ;
@Column(name = "EMP_Name")
private String name ;
@OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL)
@JoinTable(name="info", joinColumns = {@JoinColumn(name (http://community.jboss.org/mailto:%7B@JoinColumn(name) = "EMP_Name")})
private Collection<Records> record = new ArrayList();
....getter and setter
}
*- Records.java*
@Entity
@Table(name = "info")
public class Records implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "EMP_ID")
private int i;
@Column(name = "EMP_Name")
private String name;
@Column(name = "EMP_Bank_Account")
private String account;
@Column(name = "EMP_Hobby")
private String hobby;
@Column(name = "EMP_Phone")
private int phone;
...getter and setter method
}
in jsp file I invoke EntityManager.persist
Context ctx = new InitialContext();
IMappingTestPort port = (IMappingTestPort) ctx.lookup("MappingTestBean/remote");
Records r = new Records();
r.setName("aaa");
r.setAccount("111-2222");
r.setHobby("bbb");
r.setPhone(021112222);
Members m = new Members();
m.setId("aupres");
m.setPasswd("aaa");
m.setName("ccc");
m.getRecord().add(r);
port.setFamilyMember(m); // This EntityManager.persist method
But it failed.
In console
20:21:29,233 INFO [STDOUT] Hibernate: insert into family (EMP_Name, EMP_Passwd, EMP_ID) values (?, ?, ?)
20:21:29,268 INFO [STDOUT] Hibernate: insert into info (EMP_Bank_Account, EMP_Hobby, EMP_Name, EMP_Phone) values (?, ?, ?, ?)
20:21:29,288 WARN [JDBCExceptionReporter] SQL Error: 1364, SQLState: HY000
20:21:29,288 ERROR [JDBCExceptionReporter] Field 'record_EMP_ID' doesn't have a default value
record_EMP_ID is automatically generated by hibernate
Pls help!
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12 years, 10 months
[EJB3] - org.hibernate.TransientObjectException?
by Joseph Hwang
Joseph Hwang [http://community.jboss.org/people/aupres] created the discussion
"org.hibernate.TransientObjectException?"
To view the discussion, visit: http://community.jboss.org/message/621364#621364
--------------------------------------------------------------
Pls, Check my codes. I made two Entity Beans.
-Members.java
package com.aaa.ejb3;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.OneToMany;
import javax.persistence.Table;
@Entity
@Table(name = "family")
public class Members implements Serializable {
@Id
@Column(name = "EMP_ID")
private String id ;
@Column(name = "EMP_Passwd")
private String passwd ;
@Column(name = "EMP_Name")
private String name ;
@OneToMany(fetch=FetchType.EAGER)
@JoinTable(name="info", joinColumns = {@JoinColumn(name = "EMP_Name")})
private Collection<Records> record = new ArrayList();
....
}
- Records.java
package com.aaa.ejb3;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "info")
public class Records implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.TABLE)
@Column(name = "EMP_ID")
private int i;
@Column(name = "EMP_Name")
private String name;
....
}
and I added EntityManager in EJB Bean like below
-MappingTestBean.java
package com.aaa.ejb3;
import java.util.Collection;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
@Stateless
public class MappingTestBean implements IMappingTestPort {
@PersistenceContext(unitName="MyFamily")
EntityManager em;
public Collection<Records> getFamilyMember(String name) {
// TODO Auto-generated method stub
Members m = (Members)em.find(Members.class, name);
Collection<Records> records = m.getRecord();
return records;
}
public void setFamilyMember(Members m){
em.persist(m);
}
}
Deployment of EJB3 Beans are successfull.
In JSP I invoke the method
try {
Context ctx = new InitialContext();
IMappingTestPort port = (IMappingTestPort) ctx.lookup("MappingTestBean/remote");
Records r = new Records();
r.setName("aaa");
r.setAccount("111-2222");
r.setHobby("bbb");
r.setPhone(021112222);
Members m = new Members();
m.setId("aupres");
m.setPasswd("aaa");
m.setName("vvv");
m.getRecord().add(r);
port.setFamilyMember(m);
But Exception Occurs. The Exception is
20:02:43,005 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session
org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.aaa.ejb3.Records
at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:242)
at org.hibernate.type.EntityType.getIdentifier(EntityType.java:430)
at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:101)
at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:777)
at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1165)
at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:58)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:171)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:365)
at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:504)
at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:101)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:269)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:89)
at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1423)
at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:137)
at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)
at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:170)
at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:190)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:421)
at org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:85)
at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:72)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:62)
at $Proxy310.invoke(Unknown Source)
at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207)
at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:164)
at $Proxy309.setFamilyMember(Unknown Source)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:92)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
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:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:662)
I need your advice! Thanks in advance.
Best Regards.
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12 years, 10 months