Hibernate version:
3.1rc3

Mapping documents:

I've got a mapping to a CustomUserType as follows:

hibernate-mapping>
<joined-subclass
name="com.foo.model.primatives.LabeledSliderState"
table="LABELED_SLIDER_STATES" lazy="false"
extends="com.foo.model.AbstractState">
<key column="ID" />
<property name="nameLabel" node="nameLabel"
type="java.lang.String" />
<property name="testLabel"
type="com.foo.model.primatives.TestLabelState"
node="com.foo.model.primatives.TestLabelState">
<column name="testLabel"/>
</property>

</joined-subclass>
</hibernate-mapping>
TestLabelState implements CompositeUserType.
This works fine to get the instance of a LabeledSliderState saved. However, when I try to read it out using EntityMode.DOM4J, I get a ClassCastException:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:
java.lang.ClassCastException
at org.hibernate.type.CompositeCustomType.setToXMLNode(CompositeCustomType.java:250)
at org.hibernate.property.Dom4jAccessor$ElementSetter.set(Dom4jAccessor.java:310)
at org.hibernate.tuple.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:330)
at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3429)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:126)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
at org.hibernate.loader.Loader.loadCollection(Loader.java:1919)
at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71)
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1493)
at org.hibernate.type.CollectionType.getCollection(CollectionType.java:501)
at org.hibernate.type.CollectionType.resolveKey(CollectionType.java:336)
at org.hibernate.type.CollectionType.resolve(CollectionType.java:329)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:113)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1791)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:107)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:81)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2911)
at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:365)
at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:346)
at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:123)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:161)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:812)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:750)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:743)
at com.foo.services.hibernate.HibernateService.showDeviceXML(HibernateService.java:101)
at com.foo.model.playbox.PlayboxStateFactory.createDeviceState(PlayboxStateFactory.java:39)
at com.foo.services.ui.UIBuilderService.createDevice(UIBuilderService.java:102)
at com.foo.designTool.Playbox.createUI(Playbox.java:154)
at com.foo.designTool.Playbox.main(Playbox.java:165)

The value object passed to setToXMLNode is not an 'org.dom4j.Element' but rather a 'TestLabelState'.

Is there something I'm missing w/in my hbm.xml mapping, or w/the implementation of TestLabelState ?

Name and version of the database you are using:
HSQLDB

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:

try change



with

Thanks, but no luck.
The object is still a TestLabelState, and not a DefaultElement.

can you post the code of TestLabelState ?

/*
* Created on Oct 12, 2005 @author : String
*/
package com.foo.model.primatives;

import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.type.Type;
import org.hibernate.usertype.CompositeUserType;
import com.foo.model.AbstractState;
import com.foo.model.IControllerState;

/**
* @author String
*
*/
public class TestLabelState extends AbstractState implements IControllerState, CompositeUserType{
private String labelText = "";
/**
*
*/
public TestLabelState() {
super();
}
/**
* @param id2
*/
public TestLabelState(Integer id2) {
super(id2);
}
public TestLabelState(String text) {
this(null, text);
}
public TestLabelState(Integer id2, String text) {
super(id2);
setLabelText(text);
}
public String getLabelText() {
return labelText;
}
public void setLabelText(String text) {
if (this.labelText.equals(text)) {
return;
}
this.labelText = text;
notifyObservers(createValueChangeEvent());
}
/**
* @see org.hibernate.usertype.UserType#sqlTypes()
*/
public int[] sqlTypes() {
return null;
}
/**
* @see org.hibernate.usertype.UserType#returnedClass()
*/
public Class returnedClass() {
return TestLabelState.class;
}
/**
* @see org.hibernate.usertype.UserType#equals(java.lang.Object,
* java.lang.Object)
*/
public boolean equals(Object x, Object y) throws HibernateException {
if (x == y) {
return true;
}
if (x == null || y == null) {
return false;
}
TestLabelState lsx = (TestLabelState) x;
TestLabelState lsy = (TestLabelState) y;
return lsx.getLabelText().equals(lsy.getLabelText());
}
/**
* @see org.hibernate.usertype.UserType#hashCode(java.lang.Object)
*/
public int hashCode(Object x) throws HibernateException {
return ((TestLabelState)x).getLabelText().hashCode();
}
/**
* @see org.hibernate.usertype.UserType#deepCopy(java.lang.Object)
*/
public Object deepCopy(Object value) throws HibernateException {
return new TestLabelState(((TestLabelState)value).getLabelText());
}
/**
* @see org.hibernate.usertype.UserType#isMutable()
*/
public boolean isMutable() {
return true;
}
/**
* @see org.hibernate.usertype.CompositeUserType#getPropertyNames()
*/
public String[] getPropertyNames() {
return new String[] { "labelText" };
}
/**
* @see org.hibernate.usertype.CompositeUserType#getPropertyTypes()
*/
public Type[] getPropertyTypes() {
return new Type[] { Hibernate.STRING };
}
/**
* @see org.hibernate.usertype.CompositeUserType#getPropertyValue(java.lang.Object,
* int)
*/
public Object getPropertyValue(Object component, int property) throws HibernateException {
TestLabelState ls = (TestLabelState) component;
return ls.getLabelText();
}
/**
* @see org.hibernate.usertype.CompositeUserType#setPropertyValue(java.lang.Object,
* int, java.lang.Object)
*/
public void setPropertyValue(Object component, int property, Object value) throws HibernateException {
((TestLabelState) component).setLabel((String) value);
}
/**
* @see org.hibernate.usertype.CompositeUserType#nullSafeGet(java.sql.ResultSet,
* java.lang.String[], org.hibernate.engine.SessionImplementor,
* java.lang.Object)
*/
public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
throws HibernateException, SQLException {
String text = (String)Hibernate.STRING.nullSafeGet(rs, names[0]);
if (text == null){
return null;
}

return new TestLabelState(text);
}
/**
* @see org.hibernate.usertype.CompositeUserType#nullSafeSet(java.sql.PreparedStatement,
* java.lang.Object, int, org.hibernate.engine.SessionImplementor)
*/
public void nullSafeSet(PreparedStatement st, Object value, int index, SessionImplementor session)
throws HibernateException, SQLException {
Hibernate.STRING.nullSafeSet(st, ((TestLabelState)value).getLabelText(), index);
}
/**
* @see org.hibernate.usertype.CompositeUserType#disassemble(java.lang.Object,
* org.hibernate.engine.SessionImplementor)
*/
public Serializable disassemble(Object value, SessionImplementor session) throws HibernateException {
return (Serializable)deepCopy(value);
}
/**
* @see org.hibernate.usertype.CompositeUserType#assemble(java.io.Serializable,
* org.hibernate.engine.SessionImplementor, java.lang.Object)
*/
public Object assemble(Serializable cached, SessionImplementor session, Object owner) throws HibernateException {
return deepCopy(cached);
}
/**
* @see org.hibernate.usertype.CompositeUserType#replace(java.lang.Object,
* java.lang.Object, org.hibernate.engine.SessionImplementor,
* java.lang.Object)
*/
public Object replace(Object original, Object target, SessionImplementor session, Object owner)
throws HibernateException {
return deepCopy(original);
}
}

Just a general suggestion,
try to create two classes:

TestLabelState as your business class
and TestLabelStateType as your UserType.
Only TestLabelStateType should implement CompositeUserType
and:




Another suspicious function is:


The documentation about this function reads:



Perhaps this helps.