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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing

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/*
 * 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.geode.cache;

/**
 * Indicates that the requested region already exists when a region is being created.
 *
 *
 * 
 * @see Region#createSubregion
 * @see Cache#createRegion
 * @since GemFire 2.0
 */
public class RegionExistsException extends CacheException {
  private static final long serialVersionUID = -5643670216230359426L;
  private transient Region region;

  /**
   * Constructs an instance of RegionExistsException with the specified Region.
   * 
   * @param rgn the Region that exists
   */
  public RegionExistsException(Region rgn) {
    super(rgn.getFullPath());
    this.region = rgn;
  }

  /**
   * Constructs an instance of RegionExistsException with the specified detail message
   * and cause.
   * 
   * @param rgn the Region that exists
   * @param cause the causal Throwable
   */
  public RegionExistsException(Region rgn, Throwable cause) {
    super(rgn.getFullPath(), cause);
    this.region = rgn;
  }

  /**
   * Return the Region that already exists which prevented region creation.
   * 
   * @return the Region that already exists, or null if this exception has been serialized, in which
   *         {@link Throwable#getMessage } will return the pathFromRoot for the region that exists.
   */
  public Region getRegion() {
    return this.region;
  }
}