1 /*
2 * $Id: HasKeys.java 1064782 2011-01-28 17:08:52Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.tiles.request.attribute;
22
23 import java.util.Enumeration;
24
25 /**
26 * Allows to get attributes.
27 *
28 * @version $Rev: 1064782 $ $Date: 2011-01-29 04:08:52 +1100 (Sat, 29 Jan 2011) $
29 * @param <V> The type of the value of the attribute.
30 */
31 public interface HasKeys<V> {
32
33 /**
34 * The enumeration of the keys of the stored attributes.
35 *
36 * @return The keys.
37 */
38 Enumeration<String> getKeys();
39
40 /**
41 * Returns the value of the attribute with the given key.
42 *
43 * @param key The key of the attribute.
44 * @return The value.
45 */
46 V getValue(String key);
47 }