1 /**
2 * Copyright (c) 2004-2011 QOS.ch
3 * All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25 package org.slf4j;
26
27 /**
28 * <code>ILoggerFactory</code> instances manufacture {@link Logger}
29 * instances by name.
30 *
31 * <p>Most users retrieve {@link Logger} instances through the static
32 * {@link LoggerFactory#getLogger(String)} method. An instance of of this
33 * interface is bound internally with {@link LoggerFactory} class at
34 * compile time.
35 *
36 * @author Ceki Gülcü
37 */
38 public interface ILoggerFactory {
39
40 /**
41 * Return an appropriate {@link Logger} instance as specified by the
42 * <code>name</code> parameter.
43 *
44 * <p>If the name parameter is equal to {@link Logger#ROOT_LOGGER_NAME}, that is
45 * the string value "ROOT" (case insensitive), then the root logger of the
46 * underlying logging system is returned.
47 *
48 * <p>Null-valued name arguments are considered invalid.
49 *
50 * <p>Certain extremely simple logging systems, e.g. NOP, may always
51 * return the same logger instance regardless of the requested name.
52 *
53 * @param name the name of the Logger to return
54 * @return a Logger instance
55 */
56 public Logger getLogger(String name);
57 }