Problems with org.hibernate.TransientObjectException

grupobgm · **Joined:** Mon May 29, 2006 6:07 am **Posts:** 12

Hi I am using Hibernate 3.0 i i have got this code:

Code:

anu.setEmpleado(empl);
depto.addAnuncio(anu);
session.beginTransaction();
session.update(depto);
session.getTransaction().commit();
session.close();

the exception:

Code:

  org.hibernate.TransientObjectException: model.Empleado
org.hibernate.TransientObjectException: model.Empleado
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
   at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:71)
   at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1826)
   at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2172)
   at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118)
   at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2374)
   at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:91)
   at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)

the mappings are:

Code:

<class name="model.calidad.Aviso" table="Aviso">
        <id name="aviso_id" column="aviso_id">
            <generator class="increment"/>
        </id>
      
        <property name="nombre" type="string"/>
        <property name="descripcion" type="string"/>
        <property name="fecha" type="java.util.Date"/>
        <property name="envioEmail" type="boolean"/>
        <many-to-one name="empleado" column="empleado_id" lazy="false" cascade="persist" class="model.Empleado"></many-to-one>
        
        <set lazy="false" cascade="all" name="comentarios">
           <key column="aviso_id"/>
           <one-to-many class="model.calidad.Comentario"/>
        </set>

Code:

    <class name="model.Departamento" table="Departamento" >
        <id name="departamento_id" column="departamento_id">
            <generator class="increment"/>
        </id>
        
        <property name="descripcion" type="string"/>
        <property name="nombre" type="string"/>
        
        <set name="puestos" cascade="all" lazy="false" >
           <key not-null="true" column="departamento_id"/>
         <one-to-many class="model.Puesto"/>
        </set>
        <set name="anuncios" cascade="all" lazy="false" >
           <key not-null="true" column="departamento_id"/>
         <one-to-many class="model.calidad.Anuncio"/>
        </set>
    </class>

It has Anyone an idea? thanks a lot

hlfsousa · **Posted:** Mon Jul 03, 2006 2:16 pm

Object "empl" (setEmpleado) is probably missing the ID property (meaning the property is null). At least that happened every time I get that exception.

grupobgm · **Joined:** Mon May 29, 2006 6:07 am **Posts:** 12

Thanks for yor reply but this is not the problem, the Id is not a null value, but here is a new detail of the problem:

Code:

Could not synchronize database state with session
org.hibernate.TransientObjectException: model.Empleado
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
   at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:71)
   at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1826)
   at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2172)
   at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118)
   at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2374)

batmat · **Posted:** Tue Jul 04, 2006 9:57 am

I think that hlfsousa was pointing the right direction. Your objects have ids that are "user-assigned" : you didn't specify the id generation strategy, so you have to manage it by yourself.

Did you set the id of your depto object, and every objects ? Is empleado also an entity ? Did you call setId() on every entities before trying to save it ?

Moreover, why are you calling update(), do you know why you're doing it ? Most of the times, you should prefer to simply call save(), as said in the reference doc :
http://www.hibernate.org/hib_docs/v3/re ... veorupdate

Quote:

Firstly, so long as you are not trying to use instances from one session in another new session, you should not need to use update(), saveOrUpdate(), or merge(). Some whole applications will never use either of these methods.

grupobgm · **Joined:** Mon May 29, 2006 6:07 am **Posts:** 12

Thanks for your reply but, that´s not the problem, it is the same problem for Save() or Update(). An answering your question, yes i´m sure that neither ID is null. Any other idea?

Thanks a lot everyone

batmat · **Posted:** Tue Jul 04, 2006 11:09 am

The error "could not synchronize state..." also appears when the id is one that's already used in the database (primary key constraint violation, in this case).

Are you also sure your id are not already used ?

grupobgm · **Joined:** Mon May 29, 2006 6:07 am **Posts:** 12

Thanks a lot for your reply, It was the problem