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mutable
 Post subject: TransientObjectException on merge
PostPosted: Thu Oct 16, 2008 12:11 pm 
Newbie

Joined: Sat Nov 17, 2007 8:42 pm
Posts: 2
Hello.

I have and object A (transient or detached) which has a collection of objects B. On this collections is specified cascade all. So I add some transient instances of B to collection of A and do:

merge(A);

, however I get TransientObjectException.

Details below.

I think I don't do anything worng. Thanks for suggestions.

Hibernate version: 3.2.4sp1

Mapping documents: Annotations mapping

Code:
@javax.persistence.Entity
@Table(name = "PRODUCT")
public class Product extends BaseEntity {

    @Basic
    @Column(name = "NAME")
    private String name;

    @OneToMany(mappedBy = "product", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    @Cascade(org.hibernate.annotations.CascadeType.DELETE_ORPHAN)
    private Set<LicensedEntity> licensedEntities;

    @Override
    public boolean equals(Object obj) {
        if(this == obj)
            return true;
        if(obj instanceof Product) {
            final Product other = (Product) obj;
            if(id != null && other.id != null && id.equals(other.id))
                return true;
            if(name.equals(other.name))
                return true;
        }
        return false;
    }

    public int hashCode() {
        int result = 5;
        result = 31 * result + (name != null ? name.hashCode() : 0);
        return result;
    }

    public Product() { }
   
    public Product(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Set<LicensedEntity> getLicensedEntities() {
        if(licensedEntities == null) {
            licensedEntities = new HashSet<LicensedEntity>();
        }
        return licensedEntities;
    }

    public void setLicensedEntities(Set<LicensedEntity> licensedEntities) {
        this.licensedEntities = licensedEntities;
    }
}



Code:
@javax.persistence.Entity
@Table(name = "LICENSED_ENTITY", uniqueConstraints = {
    @UniqueConstraint( columnNames = { "CLASS_NAME", "PRODUCT_FK" })
})
public class LicensedEntity extends BaseEntity {

    @Basic
    @Column(name = "CLASS_NAME")
   private String className;
   
    @ManyToOne
    @JoinColumn(name = "PRODUCT_FK")
    private Product product;

   public LicensedEntity() { }

   public LicensedEntity(String className, Product product) {
      this.className = className;
        this.product = product;
   }

    @Override
    public boolean equals(Object obj) {
        if(this == obj)
            return true;
        if(obj instanceof LicensedEntity) {
            final LicensedEntity other = (LicensedEntity) obj;
            if(id != null && other.id != null && id.equals(other.id))
                return true;
            if(className.equals(other.className) && product.equals(other.product))
                return true;
        }
        return false;
    }

    public int hashCode() {
        int result = 3;
        result = 31 * result + (className != null ? className.hashCode() : 0);
        result = 31 * result + (product != null ? product.hashCode() : 0);
        return result;
    }

    public void setClassName(String className) {
      this.className = className;
   }

   public String getClassName() {
      return className;
   }

    public Product getProduct() {
        return product;
    }

    public void setProduct(Product product) {
        this.product = product;
    }
}


Code between sessionFactory.openSession() and session.close():
Code:
Product prod = getByName(newProd.getName());
if(prod == null)
    prod = new Product(newProd.getName());
prod.getLicensedEntities().addAll(newProd.getLicensedEntities());
for(Iterator it = prod.getLicensedEntities().iterator(); it.hasNext(); )
    if(!newProd.getLicensedEntities().contains(it.next()))
        it.remove();
merge(prod);


Full stack trace of any exception that occurs:
Code:
org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: x.y.model.Product
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
   at org.hibernate.type.EntityType.replace(EntityType.java:253)
   at org.hibernate.type.AbstractType.replace(AbstractType.java:153)
   at org.hibernate.type.TypeFactory.replace(TypeFactory.java:515)
   at org.hibernate.event.def.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:377)
   at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:179)
   at org.springframework.orm.hibernate3.support.IdTransferringMergeEventListener.entityIsTransient(IdTransferringMergeEventListener.java:64)
   at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
   at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
   at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
   at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
   at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
   at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
   at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
   at org.hibernate.event.def.DefaultMergeEventListener.cascadeOnMerge(DefaultMergeEventListener.java:407)
   at org.hibernate.event.def.DefaultMergeEventListener.entityIsPersistent(DefaultMergeEventListener.java:152)
   at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:126)
   at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53)
   at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677)
   at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661)
   at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665)
   at org.jboss.seam.persistence.HibernateSessionProxy.merge(HibernateSessionProxy.java:316)
   at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.jboss.seam.ioc.spring.SeamManagedSessionFactoryBean$SeamManagedSessionHandler.invoke(SeamManagedSessionFactoryBean.java:297)
   at $Proxy75.merge(Unknown Source)
   at cz.bellman.common.dao.AbstractHibernateDao.merge(AbstractHibernateDao.java:84)
   at cz.bellman.common.dao.AbstractHibernateDao$$FastClassByCGLIB$$f9310fd3.invoke(<generated>)
   at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
   at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:695)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
   at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:77)
   at cz.bellman.ena.business.EscalationBusinessImpl.scheduleUpdate(EscalationBusinessImpl.java:108)
   at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:576)
   at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:562)
   at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:60)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
   at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
   at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:630)
   at x.y.dao.ProductDaoHibernate$$EnhancerByCGLIB$$e01804fc.merge(<generated>)
   at cz.bellman.common.business.AbstractBusiness.merge(AbstractBusiness.java:71)
   at x.y.business.ProductBusinessImpl.updateProduct(ProductBusinessImpl.java:53)
   at x.y.business.ProductBusinessImpl.installProducts(ProductBusinessImpl.java:42)
   at x.y.business.ProductBusinessImpl.update(ProductBusinessImpl.java:22)
   at x.y.business.ProductBusinessImpl$$FastClassByCGLIB$$d3299211.invoke(<generated>)
   at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
   at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:695)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
   at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:630)
   at x.y.business.ProductBusinessImpl$$EnhancerByCGLIB$$f3451662.update(<generated>)
   at java.util.Observable.notifyObservers(Observable.java:142)
   at java.util.Observable.notifyObservers(Observable.java:98)
   at cz.bellman.common.module.DescriptorManager.init(DescriptorManager.java:162)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1240)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1205)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1171)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:425)
   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
   at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:261)
   at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:109)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1099)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:861)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:421)
   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287)
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
   at org.jboss.seam.ioc.spring.ContextLoader.startupContextLoader(ContextLoader.java:64)
   at org.jboss.seam.ioc.spring.ContextLoader.create(ContextLoader.java:43)
   at cz.bellman.common.seam.ContextLoader.create(ContextLoader.java:29)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
   at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
   at org.jboss.seam.Component.callComponentMethod(Component.java:2092)
   at org.jboss.seam.Component.callCreateMethod(Component.java:2015)
   at org.jboss.seam.Component.newInstance(Component.java:1976)
   at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
   at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
   at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:95)
   at org.jboss.seam.init.Initialization.init(Initialization.java:596)
   at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
   at cz.bellman.common.seam.SeamListenerExtended.contextInitialized(SeamListenerExtended.java:22)
   at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
   at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
   at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
   at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
   at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
   at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:627)
   at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)
   at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)
   at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
   at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
   at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
   at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
   at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
   at org.apache.catalina.core.StandardService.start(StandardService.java:516)
   at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
   at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)


Name and version of the database you are using: MySQL 5.0.51b
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mutable
 Post subject:
PostPosted: Thu Oct 16, 2008 12:44 pm 
Newbie

Joined: Sat Nov 17, 2007 8:42 pm
Posts: 2
Problem solved. I changed the code to:

Code:
Product prod = getByName(newProd.getName());
if(prod == null)
    prod = new Product(newProd.getName());
prod.getLicensedEntities().addAll(newProd.getLicensedEntities());
for(Iterator<LicensedEntity> it = prod.getLicensedEntities().iterator(); it.hasNext(); ) {
    LicensedEntity le = it.next();
    if(newProd.getLicensedEntities().contains(le))
        le.setProduct(prod);
    else
        it.remove();
}
merge(prod);


LicensedEntity objects from newProd referenced newProd (unsaved), not prod.
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