7:37 a.m.
ClassCastException with EntityMode.DOM4J in case of object as index
-------------------------------------------------------------------
Key: HHH-4018
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4018
Project: Hibernate Core
Issue Type: Bug
Environment: Hibernate 3.2.6.ga, HSQLDB
Reporter: Renat Valeev
public class TestA {
private Map testMap = new HashMap<TestIndex, TestElement>();
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Map getTestMap() {
return testMap;
}
public void setTestMap(Map testMap) {
this.testMap = testMap;
}
}
public class TestIndex {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
public class TestElement {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
--------------
Mappings
--------------
<hibernate-mapping default-lazy="true">
<class name="TestA" node="TestA">
<id name="id" type="integer" column="id"
node="@id">
<generator class="increment" />
</id>
<map name="testMap" cascade="all"
embed-xml="true" node="testMap">
<key column="parent_id" />
<map-key-many-to-many column="index_id"
class="TestIndex"/>
<many-to-many column="element_id" class="TestElement"
embed-xml="true" node="test_element" />
</map>
</class>
<class name="TestIndex" node="TestIndex">
<id name="id" type="integer" column="id"
node="@id">
<generator class="increment" />
</id>
</class>
<class name="TestElement" node="TestElement">
<id name="id" type="integer" column="id"
node="@id">
<generator class="increment" />
</id>
</class>
</hibernate-mapping>
--------------
Test class
--------------
public class test extends AbstractTransactionalJUnit38SpringContextTests{
@Autowired
private SessionFactory _sessionFactory;
@Test
@Transactional
public void testTest(){
Session dom4jSession =
_sessionFactory.getCurrentSession().getSession(EntityMode.DOM4J);
List result = dom4jSession.createCriteria(TestA.class).list();
// EXCEPTION RAISES HERE
for (int i = 0; i < result.size(); i++) {
Element node = (Element) result.get(i);
System.out.println(node);
}
}
@Transactional
@Override
public void setUp() throws Exception{
TestIndex ti = new TestIndex();
TestElement te = new TestElement();
_sessionFactory.getCurrentSession().saveOrUpdate(ti);
_sessionFactory.getCurrentSession().saveOrUpdate(te);
TestA t = new TestA();
HashMap<TestIndex,TestElement> hm = new
HashMap<TestIndex,TestElement>();
hm.put(ti, te);
t.setTestMap(hm);
_sessionFactory.getCurrentSession().saveOrUpdate(t);
_sessionFactory.getCurrentSession().flush();
}
}
java.lang.ClassCastException: org.hibernate.type.ManyToOneType cannot be cast to
org.hibernate.type.NullableType
at
org.hibernate.collection.PersistentIndexedElementHolder.readFrom(PersistentIndexedElementHolder.java:144)
at org.hibernate.loader.Loader.readCollectionElement(Loader.java:1008)
at org.hibernate.loader.Loader.readCollectionElements(Loader.java:646)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:591)
at org.hibernate.loader.Loader.doQuery(Loader.java:701)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.loadCollection(Loader.java:1994)
at
org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
at
org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
at
org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:63)
at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
at org.hibernate.type.CollectionType.getCollection(CollectionType.java:613)
at org.hibernate.type.CollectionType.resolveKey(CollectionType.java:408)
at org.hibernate.type.CollectionType.resolve(CollectionType.java:402)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:120)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
at org.hibernate.loader.Loader.doQuery(Loader.java:729)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.doList(Loader.java:2213)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
at org.hibernate.loader.Loader.list(Loader.java:2099)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:94)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1569)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
at testTest(test.java:34)
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