[jboss-jira] [JBoss JIRA] Updated: (EJBTHREE-722) can't get a entity with entity relation to a superclass of a joined-inheritance

Haohua xie (JIRA) jira-events at jboss.com
Tue Oct 3 04:10:41 EDT 2006 

     [ http://jira.jboss.com/jira/browse/EJBTHREE-722?page=all ]

Haohua xie updated EJBTHREE-722:
--------------------------------

    Workaround Description: 
if there is only one child class, the codes should work using @OneToOne(fetch = FetchType.LAZY,targetEntity=Dog.class) 


> can't get a entity with  entity relation to a superclass of a joined-inheritance
> --------------------------------------------------------------------------------
>
>                 Key: EJBTHREE-722
>                 URL: http://jira.jboss.com/jira/browse/EJBTHREE-722
>             Project: EJB 3.0
>          Issue Type: Bug
>    Affects Versions: EJB 3.0 RC9 - FD
>         Environment: jboss.4.0.4GA EJB 3.0 RC9-FD JDK 1.5.0_08
>            Reporter: Haohua xie
>         Attachments: joininheritance.rar
>
>
>  use the ejb3 tutorial of joininheritance as the template . i did not chanage any code of Pet.java Cat.java Dog.java.i just add some functions to PetDao and PetDAOBean
> i write a entity, Decorate, referring to Pet. i can insert a entity of Decorate into the database but when i try to get out the entities of Decorate from the database, some exception happens.
> i also try the codes on jboss.4.0.4GA EJB 3.0 RC8-FD JDK 1.5.0_08. it works well and i got the result:
>  [java] Sox
>  [java] Junior
>  [java] Test
>  [java] Test2
> Decorate.java
> package org.jboss.tutorial.joininheritance.bean;
> import javax.persistence.Entity;
> import javax.persistence.FetchType;
> import javax.persistence.GeneratedValue;
> import javax.persistence.GenerationType;
> import javax.persistence.Id;
> import javax.persistence.OneToOne;
> @Entity
> public class Decorate implements java.io.Serializable{
> private int id;
> private String name;
> private Pet pet;
> public Decorate() {
> super();
> }
> @Id @GeneratedValue(strategy=GenerationType.AUTO)
> public int getId() {
> return id;
> }
> public String getName() {
> return name;
> }
> @OneToOne(fetch = FetchType.LAZY)
> public Pet getPet() {
> return pet;
> }
> public void setId(int id) {
> this.id = id;
> }
> public void setName(String name) {
> this.name = name;
> }
> public void setPet(Pet pet) {
> this.pet = pet;
> }
> }
> PetDAO.java
> package org.jboss.tutorial.joininheritance.bean;
> import java.util.Collection;
> import java.util.List;
> public interface PetDAO
> {
> Dog createDog(String name, double weight, int bones);
> Cat createCat(String name, double weight, int lives);
> List findByWeight(double weight);
> Decorate createDecorate(String name,Pet pet);
> Collection getDecorate();
> }
> PetDAOBean.java
> package org.jboss.tutorial.joininheritance.bean;
> import java.util.ArrayList;
> import java.util.Collection;
> import java.util.List;
> import javax.ejb.Remote;
> import javax.ejb.Stateless;
> import javax.persistence.EntityManager;
> import javax.persistence.PersistenceContext;
> import javax.persistence.Query;
> @Stateless
> @Remote(PetDAO.class)
> public class PetDAOBean implements PetDAO {
> @PersistenceContext
> private EntityManager manager;
> public Dog createDog(String name, double weight, int bones) {
> Dog dog = new Dog();
> dog.setName(name);
> dog.setWeight(weight);
> dog.setNumBones(bones);
> manager.persist(dog);
> return dog;
> }
> public Cat createCat(String name, double weight, int lives) {
> Cat cat = new Cat();
> cat.setName(name);
> cat.setWeight(weight);
> cat.setLives(lives);
> manager.persist(cat);
> return cat;
> }
> public List findByWeight(double weight) {
> return manager.createQuery(
> "select p from Pet p where p.weight < :weight").setParameter(
> "weight", weight).getResultList();
> }
> public Decorate createDecorate(String name, Pet pet) {
> Decorate dec = new Decorate();
> dec.setName(name);
> dec.setPet(pet);
> manager.persist(dec);
> return dec;
> }
> public Collection getDecorate() {
> Collection founds = new ArrayList();
> Query query = manager.createQuery("SELECT o FROM Decorate o");
> List list = query.getResultList();
> for (Object obj : list) {
> if (obj instanceof Decorate) {
> founds.add((Decorate) obj);
> }
> }
> return founds;
> }
> }
> Client.java
> public class Client {
> public static void main(String[] args) throws Exception {
> InitialContext ctx = new InitialContext();
> PetDAO dao = (PetDAO) ctx.lookup("PetDAOBean/remote");
> Pet p1 = dao.createCat("Toonses", 15.0, 9);
> Pet p2 = dao.createCat("Sox", 10.0, 5);
> Pet p3 = dao.createDog("Winnie", 70.0, 5);
> Pet p4 = dao.createDog("Junior", 11.0, 1);
> Decorate d1 = dao.createDecorate("Test", p1);
> Decorate d2 = dao.createDecorate("Test2", p2);
> List l = dao.findByWeight(14.0);
> for (Object o : l) {
> System.out.println(((Pet) o).getName());
> }
> Collection founds = dao.getDecorate(); //exception throws here
> for (Decorate value : founds) {
> System.out.println(value.getName());
> }
> }
> }
> Cat.java
> package org.jboss.tutorial.joininheritance.bean;
> import javax.persistence.Entity;
> import javax.persistence.Inheritance;
> import javax.persistence.InheritanceType;
> @Entity
> @Inheritance(strategy = InheritanceType.JOINED)
> public class Cat extends Pet
> {
> int lives;
> public int getLives()
> {
> return lives;
> }
> public void setLives(int lives)
> {
> this.lives = lives;
> }
> }
> Dog.java
> package org.jboss.tutorial.joininheritance.bean;
> import javax.persistence.Entity;
> import javax.persistence.Inheritance;
> import javax.persistence.InheritanceType;
> import javax.persistence.Inheritance;
> import javax.persistence.InheritanceType;
> import javax.persistence.Entity;
> @Entity
> @Inheritance(strategy = InheritanceType.JOINED)
> public class Dog extends Pet
> {
> private int numBones;
> public int getNumBones()
> {
> return numBones;
> }
> public void setNumBones(int numBones)
> {
> this.numBones = numBones;
> }
> }
> run:
> [java] Sox
> [java] Junior
> [java] Exception in thread "main" java.lang.RuntimeException: org.jboss.tm.
> JBossRollbackException: Unable to commit, tx=TransactionImpl:XidImpl[FormatId=25
> 7, GlobalId=xhh/21, BranchQual=, localId=21] status=STATUS_NO_TRANSACTION; - nes
> ted throwable: (javax.persistence.PersistenceException: org.hibernate.HibernateE
> xception: instance not of expected entity type: org.jboss.tutorial.joininheritan
> ce.bean.Pet_$$_javassist_10 is not a: org.jboss.tutorial.joininheritance.bean.Pe
> t)
> [java] at org.jboss.aspects.tx.TxPolicy.handleEndTransactionException(T
> xPolicy.java:198)
> [java] at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:18
> 0)
> [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
> [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxIntercep
> tor.java:197)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropag
> ationInterceptor.java:76)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
> StatelessInstanceInterceptor.java:62)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
> uthenticationInterceptor.java:78)
> [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
> Ejb3AuthenticationInterceptor.java:131)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
> nInterceptor.java:47)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
> ynchronousInterceptor.java:106)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
> telessContainer.java:263)
> [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
> [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
> e(AOPRemotingInvocationHandler.java:82)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:82
> 8)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:68
> 1)
> [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
> ation(ServerThread.java:358)
> [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
> Thread.java:412)
> [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
> read.java:239)
> [java] Caused by: org.jboss.tm.JBossRollbackException: Unable to commit, tx
> =TransactionImpl:XidImpl[FormatId=257, GlobalId=xhh/21, BranchQual=, localId=21]
> status=STATUS_NO_TRANSACTION; - nested throwable: (javax.persistence.Persistenc
> eException: org.hibernate.HibernateException: instance not of expected entity ty
> pe: org.jboss.tutorial.joininheritance.bean.Pet_$$_javassist_10 is not a: org.jb
> oss.tutorial.joininheritance.bean.Pet)
> [java] at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:372)
> [java] at org.jboss.tm.TxManager.commit(TxManager.java:240)
> [java] at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:17
> 5)
> [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
> [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxIntercep
> tor.java:197)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropag
> ationInterceptor.java:76)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
> StatelessInstanceInterceptor.java:62)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
> uthenticationInterceptor.java:78)
> [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
> Ejb3AuthenticationInterceptor.java:131)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
> nInterceptor.java:47)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
> ynchronousInterceptor.java:106)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
> telessContainer.java:263)
> [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
> [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
> e(AOPRemotingInvocationHandler.java:82)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:82
> 8)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:68
> 1)
> [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
> ation(ServerThread.java:358)
> [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
> Thread.java:412)
> [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
> read.java:239)
> [java] at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInv
> oker.java:190)
> [java] at org.jboss.remoting.Client.invoke(Client.java:525)
> [java] at org.jboss.remoting.Client.invoke(Client.java:488)
> [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(Inv
> okeRemoteInterceptor.java:55)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(Cl
> ientTxPropagationInterceptor.java:61)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(S
> ecurityClientInterceptor.java:55)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInte
> rceptor.java:77)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(Stateles
> sRemoteProxy.java:102)
> [java] at $Proxy0.getDecorate(Unknown Source)
> [java] at org.jboss.tutorial.joininheritance.Client.Client.main(Client.
> java:56)
> [java] Caused by: javax.persistence.PersistenceException: org.hibernate.Hib
> ernateException: instance not of expected entity type: org.jboss.tutorial.joinin
> heritance.bean.Pet_$$_javassist_10 is not a: org.jboss.tutorial.joininheritance.
> bean.Pet
> [java] at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceE
> xception(AbstractEntityManagerImpl.java:641)
> [java] at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletio
> n(AbstractEntityManagerImpl.java:524)
> [java] at org.jboss.tm.TransactionImpl.doBeforeCompletion(TransactionIm
> pl.java:1491)
> [java] at org.jboss.tm.TransactionImpl.beforePrepare(TransactionImpl.ja
> va:1110)
> [java] at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:324)
> [java] at org.jboss.tm.TxManager.commit(TxManager.java:240)
> [java] at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:17
> 5)
> [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
> [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxIntercep
> tor.java:197)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropag
> ationInterceptor.java:76)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
> StatelessInstanceInterceptor.java:62)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
> uthenticationInterceptor.java:78)
> [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
> Ejb3AuthenticationInterceptor.java:131)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
> nInterceptor.java:47)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
> ynchronousInterceptor.java:106)
> [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
> ocation.java:101)
> [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
> telessContainer.java:263)
> [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
> [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
> e(AOPRemotingInvocationHandler.java:82)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:82
> 8)
> [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:68
> 1)
> [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
> ation(ServerThread.java:358)
> [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
> Thread.java:412)
> [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
> read.java:239)
> [java] Caused by: org.hibernate.HibernateException: instance not of expecte
> d entity type: org.jboss.tutorial.joininheritance.bean.Pet_$$_javassist_10 is no
> t a: org.jboss.tutorial.joininheritance.bean.Pet
> [java] at org.hibernate.persister.entity.AbstractEntityPersister.getSub
> classEntityPersister(AbstractEntityPersister.java:3568)
> [java] at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl
> .java:1347)
> [java] at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java
> :180)
> [java] at org.hibernate.engine.CascadingAction$9.noCascade(CascadingAct
> ion.java:347)
> [java] at org.hibernate.engine.Cascade.cascade(Cascade.java:139)
> [java] at org.hibernate.event.def.AbstractFlushingEventListener.cascade
> OnFlush(AbstractFlushingEventListener.java:130)
> [java] at org.hibernate.event.def.AbstractFlushingEventListener.prepare
> EntityFlushes(AbstractFlushingEventListener.java:121)
> [java] at org.hibernate.event.def.AbstractFlushingEventListener.flushEv
> erythingToExecutions(AbstractFlushingEventListener.java:65)
> [java] at org.hibernate.event.def.DefaultFlushEventListener.onFlush(Def
> aultFlushEventListener.java:26)
> [java] at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
> [java] at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:
> 338)
> [java] at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletio
> n(AbstractEntityManagerImpl.java:515)
> [java] ... 27 more
> [java] Java Result: 1

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