001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 * 
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 * 
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018
019
020package org.apache.log4j.spi;
021
022
023/**
024
025   The <code>LogManager</code> uses one (and only one)
026   <code>RepositorySelector</code> implementation to select the
027   {@link LoggerRepository} for a particular application context.
028
029   <p>It is the responsability of the <code>RepositorySelector</code>
030   implementation to track the application context. Log4j makes no
031   assumptions about the application context or on its management.
032
033   <p>See also {@link org.apache.log4j.LogManager LogManager}.
034
035   @author Ceki G&uuml;lc&uuml;
036   @since 1.2
037
038 */
039public interface RepositorySelector {
040
041  /**
042     Returns a {@link LoggerRepository} depending on the
043     context. Implementors must make sure that a valid (non-null)
044     LoggerRepository is returned.
045  */
046  public
047  LoggerRepository getLoggerRepository();
048}
049