01: /*
02: * Copyright 2002-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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: }
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