1 /*
2 * $Id: RefreshMonitor.java 666834 2008-06-11 20:49:05Z 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.definition;
22
23 /**
24 * Implementing this interface means that the object monitors the sources it
25 * uses to check when they change.
26 *
27 * @version $Rev: 666834 $ $Date: 2008-06-12 06:49:05 +1000 (Thu, 12 Jun 2008) $
28 * @since 2.1.0
29 */
30 public interface RefreshMonitor {
31
32 /**
33 * Indicates whether the sources are out of date and need to be reloaded.
34 *
35 * @return <code>true</code> if the sources need to be refreshed.
36 * @since 2.1.0
37 */
38 boolean refreshRequired();
39 }