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The Pax Logging API Library is to allow for the Pax Logging Service to be reloaded without stopping the many dependent bundles. It also contains the OSGi Log Service API and the Knopflerfish Log API.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.ops4j.pax.logging;

/**
 * Interfaces for loggers that delegate to {@link PaxLogger}, so they can switch to non fallback {@link PaxLogger}
 * when {@link PaxLoggingManager} becomes available.
 */
public interface PaxLoggingManagerAwareLogger {

    /**
     * Configures a {@link PaxLoggingManager} that from now on can be used to
     * {@link PaxLoggingManager#getLogger(String, String) obtain a non-fallback logger} that given logger
     * is delegating to.
     * This method is called in activator of pax-logging-api to ensure that loggers that may already been created
     * from pax-logging adjusted facades/factories actually delegate to real {@link PaxLoggingService}. This is
     * especially visible in pax-exam tests, where pax-logging-api's SLF4J classes are already used by pax-exam
     * itself before even starting OSGi framework.
     * @param manager
     */
    void setPaxLoggingManager(PaxLoggingManager manager);

}