public DynamicMapInstantiator() 
{
	  
		this.entityName = null;
}

 public DynamicMapInstantiator(PersistentClass mappingInfo) 
{
		this.entityName = mappingInfo.getEntityName();
		isInstanceEntityNames.add( entityName );
		if ( mappingInfo.hasSubclasses() ) {
			Iterator itr = mappingInfo.getSubclassClosureIterator();
			while ( itr.hasNext() ) {
				final PersistentClass subclassInfo = ( PersistentClass ) itr.next();
				isInstanceEntityNames.add( subclassInfo.getEntityName() );
			}
		}
}

 protected Map generateMap() 
{
		return new HashMap();
}

 public final Object instantiate() 
{
		Map map = generateMap();
		if ( entityName!=null ) {
			map.put( KEY, entityName );
		}
		return map;
}

 public final Object instantiate(Serializable id) 
{
		return instantiate();
}

 public final boolean isInstance(Object object) 
{
		if ( object instanceof Map ) {
			if ( entityName == null ) {
				return true;
			}
			String type = ( String ) ( ( Map ) object ).get( KEY );
			return type == null || isInstanceEntityNames.contains( type );
		}
		else {
			return false;
		}
}