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JPPF, the open source grid computing solution

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/*
 * JPPF.
 * Copyright (C) 2005-2015 JPPF Team.
 * http://www.jppf.org
 *
 * 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.
 */

package org.jppf.utils.collections;

import java.util.*;

/**
 * An identity map whose values are sets of a specified component type.
 * This means the containsKey() method will use == instead of equals().
 * @param  the type of the keys in this map.
 * @param  the type of values in each Set mapped to a key.
 * @author Laurent Cohen
 */
public class SetIdentityMap extends AbstractCollectionMap
{
  /**
   * Default constructor.
   */
  public SetIdentityMap()
  {
    map = createMap();
  }

  @Override
  protected Map> createMap()
  {
    return new IdentityHashMap<>();
  }

  @Override
  protected Collection newCollection()
  {
    return new HashSet<>();
  }
}