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Java > Open Source Codes > org > apache > excalibur > event > command > DelayedCommand


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
12  * implied.
13  *
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 package org.apache.excalibur.event.command;
19
20 /**
21  * A DelayedCommand is a specific type of Command that denotes a an execution
22  * unit that will be delayed at least X number of milliseconds. The
23  * mechanism is not guaranteed to be deterministic.
24  *
25  * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
26  */
27 public interface DelayedCommand extends Command
28 {
29     /**
30      * Sets the initial delay for the Command. This defaults to 0
31      * milliseconds. The value must be positive.
32      *
33      * @return the number of milliseconds to delay
34      */
35     long getDelayInterval();
36 }
37
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