01: /* ====================================================================
02: * The Apache Software License, Version 1.1
03: *
04: * Copyright (c) 1997-2003 The Apache Software Foundation. All rights
05: * reserved.
06: *
07: * Redistribution and use in source and binary forms, with or without
08: * modification, are permitted provided that the following conditions
09: * are met:
10: *
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: *
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in
16: * the documentation and/or other materials provided with the
17: * distribution.
18: *
19: * 3. The end-user documentation included with the redistribution,
20: * if any, must include the following acknowledgment:
21: * "This product includes software developed by the
22: * Apache Software Foundation (http://www.apache.org/)."
23: * Alternately, this acknowledgment may appear in the software
24: * itself, if and wherever such third-party acknowledgments
25: * normally appear.
26: *
27: * 4. The names "Jakarta", "Avalon", and "Apache Software Foundation"
28: * must not be used to endorse or promote products derived from this
29: * software without prior written permission. For written
30: * permission, please contact apache@apache.org.
31: *
32: * 5. Products derived from this software may not be called "Apache",
33: * nor may "Apache" appear in their name, without prior written
34: * permission of the Apache Software Foundation.
35: *
36: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
40: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47: * SUCH DAMAGE.
48: * ====================================================================
49: *
50: * This software consists of voluntary contributions made by many
51: * individuals on behalf of the Apache Software Foundation. For more
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53: * <http://www.apache.org/>.
54: */
55: package org.apache.log.output.io.rotate;
56:
57: import java.io.File;
58:
59: /**
60: * Strategy for naming log files.
61: * For a given base file name an implementation calculates
62: * the real file name.
63: *
64: * @author <a href="mailto:bh22351@i-one.at">Bernhard Huber</a>
65: * @author <a href="mailto:peter@apache.org">Peter Donald</a>
66: */
67: public interface FileStrategy {
68: /**
69: * Get the next log file to rotate to.
70: *
71: * @return the file to rotate to
72: */
73: File nextFile();
74: }
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