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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      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.log4j.spi;
    19
    20
    21  /**
    22   * Interface used to listen for LoggerRepository related
    23   * events such as startup, reset, and shutdown.  Clients register
    24   * an instance of the interface and the instance is called back
    25   * when the various events occur.
    26   * <p>
    27   * LoggerRepository provides methods for adding and removing
    28   * LoggerRepositoryEventListener instances.
    29   *
    30   * @author Ceki G&uuml;lc&uuml;
    31   * @author Mark Womack
    32   */
    33  public interface LoggerRepositoryEventListener {
    34      /**
    35       * Called when the repository configuration is reset.
    36       *
    37       * @param repository repository
    38       */
    39      void configurationResetEvent(LoggerRepository repository);
    40
    41      /**
    42       * Called when the repository configuration is changed.
    43       *
    44       * @param repository repository
    45       */
    46      void configurationChangedEvent(LoggerRepository repository);
    47
    48      /**
    49       * Called when the repository is shutdown. When this method is
    50       * invoked, the repository is still valid (ie it has not been
    51       * shutdown, but will be after this method returns).
    52       *
    53       * @param repository repository.
    54       */
    55      void shutdownEvent(LoggerRepository repository);
    56  }