AssociationOverrides


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  package javax.persistence;
24  
25  import java.lang.annotation.Target  ;
26  import java.lang.annotation.Retention  ;
27  import static java.lang.annotation.ElementType.TYPE  ;
28  import static java.lang.annotation.ElementType.METHOD  ;
29  import static java.lang.annotation.ElementType.FIELD  ;
30  import static java.lang.annotation.RetentionPolicy.RUNTIME  ;
31  
32  /**
33   * This annotation is used to override mappings of multiple 
34   * many-to-one or one-to-one relationship properties or fields.
35   *
36   * <pre>
37   *    
38   *    Example:
39   *    &#064;MappedSuperclass
40   *    public class Employee {
41   *    
42   *        &#064;Id protected Integer id;
43   *        &#064;Version protected Integer version;
44   *        &#064;ManyToOne protected Address address;
45   *        &#064;OneToOne protected Locker locker;
46   *    
47   *        public Integer getId() { ... }
48   *        public void setId(Integer id) { ... }
49   *        public Address getAddress() { ... }
50   *        public void setAddress(Address address) { ... }
51   *        public Locker getLocker() { ... }
52   *        public void setLocker(Locker locker) { ... }
53   *    
54   *    }
55   *    
56   *    &#064;Entity
57   *    &#064;AssociationOverrides({
58   *    
59   *    &#064;AssociationOverride(name="address", 
60   *            joinColumns=&#064;JoinColumn("ADDR_ID")),
61   *        &#064;AttributeOverride(name="locker", 
62   *            joinColumns=&#064;JoinColumn("LCKR_ID"))})
63   *    public PartTimeEmployee { ... }
64   * </pre>
65   *
66   * @since Java Persistence 1.0
67   */
68  @Target  ({TYPE, METHOD, FIELD}) 
69  @Retention  (RUNTIME)
70  
71  public @interface AssociationOverrides {
72  
73      /** Mapping overrides of relationship properties or fields */
74      AssociationOverride[] value();
75  }
76
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