IndexingEventListener.java

package proj.zoie.api.indexing;

/**
 * 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.
 */
import java.io.Serializable;

/**
 * <b> experimental api </b>. Call-back for indexing events.
 */
public interface IndexingEventListener {

  /**
   * Indexing event abstraction.
   */
  public static class IndexingEvent implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
  }

  /**
   * Handler for indexing events
   * @param evt event to be handled.
   */
  void handleIndexingEvent(IndexingEvent evt);

  /**
   * Handler for updated disk version
   * @param version new disk version
   */
  void handleUpdatedDiskVersion(String version);
}