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1 package org.hibernate.cfg.annotations;
3
4 import java.util.Map  ;
5
6 import org.hibernate.mapping.Collection;
7 import org.hibernate.mapping.PersistentClass;
8 import org.hibernate.mapping.Property;
9 import org.hibernate.cfg.SecondPass;
10 import org.hibernate.cfg.ExtendedMappings;
11 import org.hibernate.cfg.Ejb3JoinColumn;
12 import org.hibernate.cfg.BinderHelper;
13 import org.hibernate.FetchMode;
14 import org.hibernate.MappingException;
15 import org.hibernate.AssertionFailure;
16 import org.hibernate.AnnotationException;
17
18
23 public class MapBinder extends CollectionBinder {
24
25 protected Collection createCollection(PersistentClass persistentClass) {
26 return new org.hibernate.mapping.Map(persistentClass);
27 }
28
29 public SecondPass getSecondPass(final ExtendedMappings mappings,
30 final Ejb3JoinColumn[] keyColumns,
31 final Ejb3JoinColumn[] inverseColumns,
32 final String collType,
33 final FetchMode fetchMode,
34 final boolean unique) {
35 if (inverseColumns != null) {
36 return new SecondPass(mappings, MapBinder.this.collection) {
37 public void secondPass(Map persistentClasses, Map inheritedMetas)
38 throws MappingException {
39 bindManyToManySecondPass(MapBinder.this.collection,
40 persistentClasses,
41 keyColumns,
42 inverseColumns,
43 collType,
44 fetchMode,
45 unique,
46 cascadeDeleteEnabled, (ExtendedMappings) mappings);
47 bindKeyFromAssociationTable(collType, persistentClasses, mapKeyPropertyName, mappings);
48 }
49 };
50 }
51 else {
52 return new SecondPass(mappings, collection) {
53 public void secondPass(Map persistentClasses, Map inheritedMetas)
54 throws MappingException {
55 bindCollectionSecondPass(MapBinder.this.collection,
56 persistentClasses,
57 keyColumns,
58 cascadeDeleteEnabled, hqlOrderBy, (ExtendedMappings) mappings);
59 if ( MapBinder.this.collection.isOneToMany() ) {
60 org.hibernate.mapping.OneToMany oneToMany = (org.hibernate.mapping.OneToMany)
61 MapBinder.this.collection.getElement();
62 String collType = oneToMany.getReferencedEntityName();
63 bindKeyFromAssociationTable(collType, persistentClasses, mapKeyPropertyName, mappings);
64 }
65 else {
66 throw new AssertionFailure("Should be a one to many");
67 }
68 }
69 };
70 }
71 }
72
73 private void bindKeyFromAssociationTable(
74 String collType, Map persistentClasses, String mapKeyPropertyName, ExtendedMappings mappings
75 ) {
76 if (mapKeyPropertyName == null) throw new AnnotationException("A Map must declare a @MapKey element");
77 PersistentClass associatedClass = (PersistentClass) persistentClasses.get(collType);
78 if (associatedClass == null) throw new AnnotationException("Associated class not found: " + collType);
79 Property property = BinderHelper.findPropertyByName( associatedClass, mapKeyPropertyName);
80 if (property == null) throw new AnnotationException("Map key property not found: " + collType + "." + mapKeyPropertyName);
81 org.hibernate.mapping.Map map = (org.hibernate.mapping.Map) this.collection;
82 map.setIndex( property.getValue() );
83 }
84 }
85 |
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