/*
 * 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.apache.log4j.chainsaw;


/**
 * Chainsaw compatible gui viewers must implement this interface
 * in order to be opened and configured by the ChainsawAppender class.
 *
 * @author Mark Womack
 */
public interface ChainsawViewer {
    /**
     * Called when the viewer should activate.
     *
     * @param model The ChainsawAppender model instance the viewer should use.
     */
    void activateViewer(ChainsawAppender model);
}