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1 package org.hibernate.cfg.annotations;
2
3 import java.util.Map  ;
4
5 import org.hibernate.AnnotationException;
6 import org.hibernate.FetchMode;
7 import org.hibernate.MappingException;
8 import org.hibernate.annotations.OrderBy;
9 import org.hibernate.annotations.Sort;
10 import org.hibernate.cfg.Ejb3JoinColumn;
11 import org.hibernate.cfg.ExtendedMappings;
12 import org.hibernate.cfg.PropertyHolder;
13 import org.hibernate.cfg.PropertyHolderBuilder;
14 import org.hibernate.cfg.SecondPass;
15 import org.hibernate.cfg.Ejb3Column;
16 import org.hibernate.mapping.Collection;
17 import org.hibernate.mapping.IndexBackref;
18 import org.hibernate.mapping.IndexedCollection;
19 import org.hibernate.mapping.List;
20 import org.hibernate.mapping.OneToMany;
21 import org.hibernate.mapping.PersistentClass;
22 import org.hibernate.mapping.SimpleValue;
23 import org.apache.commons.logging.Log;
24 import org.apache.commons.logging.LogFactory;
25
26
32 public class ListBinder extends CollectionBinder {
33 private static Log log = LogFactory.getLog(ListBinder.class);
34
35 public ListBinder() {}
36
37 protected Collection createCollection(PersistentClass persistentClass) {
38 return new org.hibernate.mapping.List(persistentClass);
39 }
40
41 public void setSqlOrderBy(OrderBy orderByAnn) {
42 if (orderByAnn != null) log.warn("@OrderBy not allowed for a indexed collection, annotation ignored.");
43 }
44
45 public void setSort(Sort sortAnn) {
46 if (sortAnn != null) log.warn("@Sort not allowed for a indexed collection, annotation ignored.");
47 }
48
49 public SecondPass getSecondPass(final ExtendedMappings mappings,
50 final Ejb3JoinColumn[] keyColumns,
51 final Ejb3JoinColumn[] inverseColumns,
52 final String collType,
53 final FetchMode fetchMode,
54 final boolean unique) {
55 if (inverseColumns != null) {
56 return new SecondPass(mappings, ListBinder.this.collection) {
57 public void secondPass(Map persistentClasses, Map inheritedMetas)
58 throws MappingException {
59 bindManyToManySecondPass(ListBinder.this.collection,
60 persistentClasses,
61 keyColumns,
62 inverseColumns,
63 collType,
64 fetchMode,
65 unique,
66 cascadeDeleteEnabled, (ExtendedMappings) mappings);
67 bindIndex( mappings );
68 }
69 };
70 }
71 else {
72 return new SecondPass(mappings, collection) {
73 public void secondPass(Map persistentClasses, Map inheritedMetas)
74 throws MappingException {
75 bindCollectionSecondPass(ListBinder.this.collection,
76 persistentClasses,
77 keyColumns,
78 cascadeDeleteEnabled, hqlOrderBy, (ExtendedMappings) mappings);
79 bindIndex( mappings );
80 }
81 };
82 }
83 }
84
85 private void bindIndex(final ExtendedMappings mappings) {
86 if ( indexColumn.isImplicit() == false ) {
87 PropertyHolder valueHolder = PropertyHolderBuilder.buildPropertyHolder(
88 this.collection,
89 IndexedCollection.DEFAULT_INDEX_COLUMN_NAME
90 );
91 List list = (List) this.collection;
92 if ( ! list.isOneToMany() ) indexColumn.forceNotNull();
93 indexColumn.setPropertyHolder( valueHolder );
94 SimpleValueBinder value = new SimpleValueBinder();
95 value.setColumns(new Ejb3Column[] { indexColumn } );
96 value.setExplicitType("integer");
97 value.setMappings(mappings);
98 SimpleValue indexValue = value.make();
99 indexColumn.linkWithValue( indexValue );
100 list.setIndex(indexValue);
101 list.setBaseIndex( indexColumn.getBase() );
102 if ( list.isOneToMany() && !list.getKey().isNullable() && !list.isInverse() ) {
103 String entityName = ( (OneToMany) list.getElement() ).getReferencedEntityName();
104 PersistentClass referenced = mappings.getClass( entityName );
105 IndexBackref ib = new IndexBackref();
106 ib.setName( '_' + propertyName + "IndexBackref" );
107 ib.setUpdateable( false );
108 ib.setSelectable( false );
109 ib.setCollectionRole( list.getRole() );
110 ib.setEntityName( list.getOwner().getEntityName() );
111 ib.setValue( list.getIndex() );
112 referenced.addProperty( ib );
113 }
114 }
115 else {
116 Collection coll = this.collection;
117 throw new AnnotationException(
118 "List/array has to be annotated with an @IndexColumn: "
119 + coll.getRole()
120 );
121 }
122 }
123 }
124 |
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