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/*
 * Copyright 2014 Google Inc.
 *
 * 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 java.util;

/**
 * Sorted map providing additional query operations and views.
 *
 * @param  key type.
 * @param  value type.
 */
public interface NavigableMap extends SortedMap {
  Map.Entry ceilingEntry(K key);

  K ceilingKey(K key);

  NavigableSet descendingKeySet();

  NavigableMap descendingMap();

  Map.Entry firstEntry();

  Map.Entry floorEntry(K key);

  K floorKey(K key);

  NavigableMap headMap(K toKey, boolean inclusive);

  Map.Entry higherEntry(K key);

  K higherKey(K key);

  Map.Entry lastEntry();

  Map.Entry lowerEntry(K key);

  K lowerKey(K key);

  NavigableSet navigableKeySet();

  Map.Entry pollFirstEntry();

  Map.Entry pollLastEntry();

  NavigableMap subMap(K fromKey, boolean fromInclusive, K toKey, boolean toInclusive);

  NavigableMap tailMap(K fromKey, boolean inclusive);
}