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    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 G&uuml;lc&uuml;
    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  }