01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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:
18: package org.apache.commons.configuration.reloading;
19:
20: import org.apache.commons.configuration.FileConfiguration;
21:
22: /**
23: * A strategy to decide if a configuration should be reloaded.
24: *
25: * @author Emmanuel Bourg
26: * @author Olivier Heger
27: * @version $Revision: 439648 $, $Date: 2006-09-02 22:42:10 +0200 (Sa, 02 Sep 2006) $
28: * @since 1.1
29: */
30: public interface ReloadingStrategy {
31: /**
32: * Set the configuration managed by this strategy.
33: *
34: * @param configuration the configuration to monitor
35: */
36: void setConfiguration(FileConfiguration configuration);
37:
38: /**
39: * Initialize the strategy.
40: */
41: void init();
42:
43: /**
44: * Tell if the evaluation of the strategy requires to reload the configuration.
45: *
46: * @return a flag whether a reload should be performed
47: */
48: boolean reloadingRequired();
49:
50: /**
51: * Notify the strategy that the file has been reloaded.
52: */
53: void reloadingPerformed();
54:
55: }
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