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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed 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. See accompanying
 * LICENSE file.
 */

package com.gemstone.gemfire.cache;

/** Contains information about an event affecting a region, including
 * its identity and the circumstances of the event.
 * This is passed in to CacheListener and CacheWriter.
 *
 * @author Eric Zoerner
 *
 *
 * @see CacheListener
 * @see CacheWriter
 * @see EntryEvent
 * @since 2.0
 */
public interface RegionEvent extends CacheEvent {
  
  /**
   * Return true if this region was destroyed but is being reinitialized,
   * for example if a snapshot was just loaded. Can only return true for
   * an event related to region destruction.
   */
  public boolean isReinitializing();

  /**
   * If this region is being closed due to a disk error then return the disk
   * exception that caused the region to close, else return null.
   */
  public DiskAccessException getDiskException();
}