public PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister, Serializable key) {
	if ( session.getEntityMode()==EntityMode.DOM4J ) {
		return new PersistentListElementHolder(session, persister, key);
	}
	else {
		return new PersistentList(session);
	}
}
 

public PersistentCollection wrap(SessionImplementor session, Object collection) {
	if ( session.getEntityMode()==EntityMode.DOM4J ) {
		return new PersistentListElementHolder( session, (Element) collection );
	}
	else {
		return new PersistentList( session, (List) collection );
	}
}
 

/**
* 
*/
  protected PortfolioRepositoryHandler() {
      supportedTypes = new ArrayList<String>(1);
      supportedTypes.add(EPTemplateMapResource.TYPE_NAME);

      myStream.alias("defaultMap", EPDefaultMap.class);
      myStream.alias("structureMap", EPStructuredMap.class);
      myStream.alias("templateMap", EPStructuredMapTemplate.class);
      myStream.alias("structure", EPStructureElement.class);
      myStream.alias("page", EPPage.class);
      myStream.alias("structureToArtefact", EPStructureToArtefactLink.class);
      myStream.alias("structureToStructure", EPStructureToStructureLink.class);
      myStream.alias("collectionRestriction", CollectRestriction.class);

      myStream.alias("org.olat.resource.OLATResourceImpl", OLATResourceImpl.class);
      myStream.alias("OLATResource", OLATResourceImpl.class);

      myStream.alias("org.olat.basesecurity.SecurityGroupImpl", SecurityGroupImpl.class);
      myStream.alias("SecurityGroupImpl", SecurityGroupImpl.class);

      myStream.alias("org.olat.basesecurity.SecurityGroup", SecurityGroup.class);
      myStream.alias("SecurityGroup", SecurityGroup.class);

      myStream.alias("org.olat.core.id.Persistable", Persistable.class);
      myStream.alias("Persistable", Persistable.class);

      myStream.alias("org.hibernate.proxy.HibernateProxy", HibernateProxy.class);
      myStream.alias("HibernateProxy", HibernateProxy.class);

      myStream.omitField(EPStructuredMapTemplate.class, "ownerGroup");
      myStream.addDefaultImplementation(PersistentList.class, List.class);
      myStream.addDefaultImplementation(ArrayList.class, List.class);
      myStream.registerConverter(new CollectionConverter(myStream.getMapper()) {
          @Override
          public boolean canConvert(final Class type) {
              return PersistentList.class == type;
          }
      });
  }
 

/**
* 
*/
  protected PortfolioRepositoryHandler() {
      supportedTypes = new ArrayList<String>(1);
      supportedTypes.add(EPTemplateMapResource.TYPE_NAME);

      myStream.alias("defaultMap", EPDefaultMap.class);
      myStream.alias("structureMap", EPStructuredMap.class);
      myStream.alias("templateMap", EPStructuredMapTemplate.class);
      myStream.alias("structure", EPStructureElement.class);
      myStream.alias("page", EPPage.class);
      myStream.alias("structureToArtefact", EPStructureToArtefactLink.class);
      myStream.alias("structureToStructure", EPStructureToStructureLink.class);
      myStream.alias("collectionRestriction", CollectRestriction.class);

      myStream.alias("org.olat.resource.OLATResourceImpl", OLATResourceImpl.class);
      myStream.alias("OLATResource", OLATResourceImpl.class);

      myStream.alias("org.olat.basesecurity.SecurityGroupImpl", SecurityGroupImpl.class);
      myStream.alias("SecurityGroupImpl", SecurityGroupImpl.class);

      myStream.alias("org.olat.basesecurity.SecurityGroup", SecurityGroup.class);
      myStream.alias("SecurityGroup", SecurityGroup.class);

      myStream.alias("org.olat.core.id.Persistable", Persistable.class);
      myStream.alias("Persistable", Persistable.class);

      myStream.alias("org.hibernate.proxy.HibernateProxy", HibernateProxy.class);
      myStream.alias("HibernateProxy", HibernateProxy.class);

      myStream.omitField(EPStructuredMapTemplate.class, "ownerGroup");
      myStream.addDefaultImplementation(PersistentList.class, List.class);
      myStream.addDefaultImplementation(ArrayList.class, List.class);
      myStream.registerConverter(new CollectionConverter(myStream.getMapper()) {
          @Override
          public boolean canConvert(final Class type) {
              return PersistentList.class == type;
          }
      });
  }
 

public void init()
{
  collectionMap.put(PersistentBag.class, ArrayList.class);
  collectionMap.put(PersistentList.class, ArrayList.class);
  collectionMap.put(PersistentMap.class, HashMap.class);
  collectionMap.put(PersistentSet.class, HashSet.class);
  collectionMap.put(PersistentSortedMap.class, TreeMap.class);
  collectionMap.put(PersistentSortedSet.class, TreeSet.class);
}