src/main/java/org/apache/sling/distribution/journal/impl/publisher/TopologyChangeHandler.java

/*
 * 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.sling.distribution.journal.impl.publisher;

import javax.annotation.ParametersAreNonnullByDefault;

@ParametersAreNonnullByDefault
public interface TopologyChangeHandler {

    /**
     * Invoked by the framework when the TopologyView has changed.
     *
     * @param oldView the topology view before the change
     * @param newView the topology view after the change
     */
    void changed(TopologyView oldView, TopologyView newView);

}