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Java > Open Source Codes > org > springframework > aop > target > dynamic > Refreshable


1 /*
2  * Copyright 2002-2006 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.aop.target.dynamic;
18
19 /**
20  * Interface to be implemented by dynamic target objects,
21  * which support reloading and optionally polling for updates.
22  *
23  * @author Rod Johnson
24  * @author Rob Harrop
25  * @since 2.0
26  */
27 public interface Refreshable {
28
29     /**
30      * Refresh the underlying target object.
31      */
32     void refresh();
33
34     /**
35      * Return the number of actual refreshes since startup.
36      */
37     long getRefreshCount();
38
39     /**
40      * Return the last time an actual refresh happened (as timestamp).
41      */
42     long getLastRefreshTime();
43
44 }
45
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