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1 package org.hibernate.type;
3
4 import java.io.Serializable  ;
5 import java.util.Iterator ;
6 import java.util.Map ;
7
8 import org.hibernate.HibernateException;
9 import org.hibernate.MappingException;
10 import org.hibernate.collection.PersistentCollection;
11 import org.hibernate.engine.SessionImplementor;
12 import org.hibernate.persister.collection.CollectionPersister;
13 import org.hibernate.usertype.UserCollectionType;
14
15
22 public class CustomCollectionType extends CollectionType {
23
24 private final UserCollectionType userType;
25
26 public CustomCollectionType(Class userTypeClass, String role, String foreignKeyPropertyName, boolean isEmbeddedInXML) {
27 super(role, foreignKeyPropertyName, isEmbeddedInXML);
28
29 if ( !UserCollectionType.class.isAssignableFrom(userTypeClass) ) {
30 throw new MappingException( "Custom type does not implement UserCollectionType: " + userTypeClass.getName() );
31 }
32
33 try {
34 userType = (UserCollectionType) userTypeClass.newInstance();
35 }
36 catch (InstantiationException ie) {
37 throw new MappingException( "Cannot instantiate custom type: " + userTypeClass.getName() );
38 }
39 catch (IllegalAccessException iae) {
40 throw new MappingException( "IllegalAccessException trying to instantiate custom type: " + userTypeClass.getName() );
41 }
42
43 }
44
45 public PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister, Serializable key)
46 throws HibernateException {
47 return userType.instantiate(session, persister);
48 }
49
50 public PersistentCollection wrap(SessionImplementor session, Object collection) {
51 return userType.wrap(session, collection);
52 }
53
54 public Class getReturnedClass() {
55 return userType.instantiate().getClass();
56 }
57
58 public Object instantiate(Object original) {
59 return userType.instantiate();
60 }
61
62 public Iterator getElementsIterator(Object collection) {
63 return userType.getElementsIterator(collection);
64 }
65 public boolean contains(Object collection, Object entity, CollectionPersister persister, SessionImplementor session) {
66 return userType.contains(collection, entity);
67 }
68 public Object indexOf(Object collection, Object entity) {
69 return userType.indexOf(collection, entity);
70 }
71
72 public Object replaceElements(Object original, Object target, Object owner, Map copyCache, SessionImplementor session)
73 throws HibernateException {
74 CollectionPersister cp = session.getFactory().getCollectionPersister( getRole() );
75 return userType.replaceElements(original, target, cp, owner, copyCache, session);
76 }
77 }
78 |
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