1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package javax.jdo.annotations;
18
19 import java.lang.annotation.ElementType;
20 import java.lang.annotation.Retention;
21 import java.lang.annotation.RetentionPolicy;
22 import java.lang.annotation.Target;
23
24 /**
25 * Annotation for a JDO vendor extension.
26 * Corresponds to the xml element "extension".
27 *
28 * @version 2.1
29 * @since 2.1
30 */
31 @Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD})
32 @Retention(RetentionPolicy.RUNTIME)
33 public @interface Extension
34 {
35 /** Vendor that the extension applies to (required).
36 * @return the vendor
37 */
38 String vendorName();
39
40 /** The key for the extension (required).
41 * @return the key
42 */
43 String key();
44
45 /** The value for the extension (required).
46 * @return the value
47 */
48 String value();
49 }