/*
* Copyright (C) 2011 The Guava Authors
*
* 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 com.google.common.collect;
import com.google.common.annotations.Beta;
import java.util.Comparator;
import java.util.SortedSet;
/**
* GWT emulation of {@code SortedMultiset}, with {@code elementSet} reduced
* to returning a {@code SortedSet} for GWT compatibility.
*
* @author Louis Wasserman
* @since 11.0
*/
@Beta
public interface SortedMultiset<E> extends Multiset<E>, SortedIterable<E> {
Comparator<? super E> comparator();
Entry<E> firstEntry();
Entry<E> lastEntry();
Entry<E> pollFirstEntry();
Entry<E> pollLastEntry();
/**
* Returns a {@link SortedSet} view of the distinct elements in this multiset.
* (Outside GWT, this returns a {@code NavigableSet}.)
*/
@Override SortedSet<E> elementSet();
SortedMultiset<E> descendingMultiset();
SortedMultiset<E> headMultiset(E upperBound, BoundType boundType);
SortedMultiset<E> subMultiset(E lowerBound, BoundType lowerBoundType,
E upperBound, BoundType upperBoundType);
SortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType);
}