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SnappyData store based off Pivotal GemFireXD

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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.persistence;

import java.util.Set;

import com.gemstone.gemfire.GemFireException;

/**
 * Thrown when a paritioned region is configured for disk persistence,
 * and part of the data is stored on members that are known to be offline.
 * 
 * With a partitioned region, the keyspace is segmented into buckets which are
 * assigned to individual members. If all members that are storing data
 * for a particular bucket are offline, any attempt to access or update
 * data in that bucket will throw this exception.
 * 
 * If you see this exception, that means that you need to restart the
 * members that host the missing data.
 * 
 * If you receive this exception when attempting an operation that modifies
 * the region (such as a put), it is possible that the change was actually
 * persisted to disk before the member went offline.
 * 
 * @author dsmith
 * @since 6.5
 *
 */
public class PartitionOfflineException extends GemFireException {

  private static final long serialVersionUID = -6471045959318795870L;
  
  private Set offlineMembers;

  public PartitionOfflineException(Set offlineMembers) {
    super();
    this.offlineMembers = offlineMembers;
  }

  public PartitionOfflineException(Set offlineMembers, String message) {
    super(message);
    this.offlineMembers = offlineMembers;
  }

  public PartitionOfflineException(Set offlineMembers, String message, Throwable cause) {
    super(message, cause);
    this.offlineMembers = offlineMembers;
  }

  public PartitionOfflineException(Set offlineMembers, Throwable cause) {
    super(cause);
    this.offlineMembers = offlineMembers;
  }

  /**
   * Retrieve the set of disk directories which are known to hold data for the missing 
   * buckets, but are not online.
   */
  public Set getOfflineMembers() {
    return (Set) offlineMembers;
  }

}