com.hazelcast.util.concurrent.ConcurrentNavigableMap Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2013, Hazelcast, 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.
*/
/*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/licenses/publicdomain
*/
package com.hazelcast.util.concurrent;
import com.hazelcast.util.NavigableMap;
import com.hazelcast.util.NavigableSet;
import java.util.Collections;
import java.util.Comparator;
import java.util.ConcurrentModificationException;
import java.util.concurrent.ConcurrentMap;
/**
* A {@link ConcurrentMap} supporting {@link NavigableMap} operations,
* and recursively so for its navigable sub-maps.
*
* @param the type of keys maintained by this map
* @param the type of mapped values
* @author Doug Lea
*/
public interface ConcurrentNavigableMap
extends ConcurrentMap, NavigableMap {
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap subMap(K fromKey, boolean fromInclusive,
K toKey, boolean toInclusive);
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap headMap(K toKey, boolean inclusive);
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap tailMap(K fromKey, boolean inclusive);
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap subMap(K fromKey, K toKey);
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap headMap(K toKey);
/**
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
*/
ConcurrentNavigableMap tailMap(K fromKey);
/**
* Returns a reverse order view of the mappings contained in this map.
* The descending map is backed by this map, so changes to the map are
* reflected in the descending map, and vice-versa.
*
* The returned map has an ordering equivalent to
* {@link Collections#reverseOrder(Comparator) Collections.reverseOrder}(comparator()).
* The expression {@code m.descendingMap().descendingMap()} returns a
* view of {@code m} essentially equivalent to {@code m}.
*
* @return a reverse order view of this map
*/
ConcurrentNavigableMap descendingMap();
/**
* Returns a {@link NavigableSet} view of the keys contained in this map.
* The set's iterator returns the keys in ascending order.
* The set is backed by the map, so changes to the map are
* reflected in the set, and vice-versa. The set supports element
* removal, which removes the corresponding mapping from the map,
* via the {@code Iterator.remove}, {@code Set.remove},
* {@code removeAll}, {@code retainAll}, and {@code clear}
* operations. It does not support the {@code add} or {@code addAll}
* operations.
*
* The view's {@code iterator} is a "weakly consistent" iterator
* that will never throw {@link ConcurrentModificationException},
* and guarantees to traverse elements as they existed upon
* construction of the iterator, and may (but is not guaranteed to)
* reflect any modifications subsequent to construction.
*
* @return a navigable set view of the keys in this map
*/
public NavigableSet navigableKeySet();
/**
* Returns a {@link NavigableSet} view of the keys contained in this map.
* The set's iterator returns the keys in ascending order.
* The set is backed by the map, so changes to the map are
* reflected in the set, and vice-versa. The set supports element
* removal, which removes the corresponding mapping from the map,
* via the {@code Iterator.remove}, {@code Set.remove},
* {@code removeAll}, {@code retainAll}, and {@code clear}
* operations. It does not support the {@code add} or {@code addAll}
* operations.
*
* The view's {@code iterator} is a "weakly consistent" iterator
* that will never throw {@link ConcurrentModificationException},
* and guarantees to traverse elements as they existed upon
* construction of the iterator, and may (but is not guaranteed to)
* reflect any modifications subsequent to construction.
*
* This method is equivalent to method {@code navigableKeySet}.
*
* @return a navigable set view of the keys in this map
*/
NavigableSet keySet();
/**
* Returns a reverse order {@link NavigableSet} view of the keys contained in this map.
* The set's iterator returns the keys in descending order.
* The set is backed by the map, so changes to the map are
* reflected in the set, and vice-versa. The set supports element
* removal, which removes the corresponding mapping from the map,
* via the {@code Iterator.remove}, {@code Set.remove},
* {@code removeAll}, {@code retainAll}, and {@code clear}
* operations. It does not support the {@code add} or {@code addAll}
* operations.
*
* The view's {@code iterator} is a "weakly consistent" iterator
* that will never throw {@link ConcurrentModificationException},
* and guarantees to traverse elements as they existed upon
* construction of the iterator, and may (but is not guaranteed to)
* reflect any modifications subsequent to construction.
*
* @return a reverse order navigable set view of the keys in this map
*/
public NavigableSet descendingKeySet();
}