11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2011 The Guava Authors 31d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 41d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 51d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * in compliance with the License. You may obtain a copy of the License at 61d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 71d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * http://www.apache.org/licenses/LICENSE-2.0 81d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 91d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unless required by applicable law or agreed to in writing, software distributed under the License 101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * or implied. See the License for the specific language governing permissions and limitations under 121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * the License. 131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpackage com.google.common.collect; 161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport javax.annotation.Nullable; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * A descending wrapper around an {@code ImmutableSortedMultiset} 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Louis Wasserman 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertfinal class DescendingImmutableSortedMultiset<E> extends ImmutableSortedMultiset<E> { 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private final transient ImmutableSortedMultiset<E> forward; 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert DescendingImmutableSortedMultiset(ImmutableSortedMultiset<E> forward) { 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super(forward.reverseComparator()); 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert this.forward = forward; 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public int count(@Nullable Object element) { 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.count(element); 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public Entry<E> firstEntry() { 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.lastEntry(); 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public Entry<E> lastEntry() { 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.firstEntry(); 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public int size() { 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.size(); 501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ImmutableSortedSet<E> createElementSet() { 541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.createDescendingElementSet(); 551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ImmutableSortedSet<E> createDescendingElementSet() { 591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.elementSet(); 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert UnmodifiableIterator<Entry<E>> descendingEntryIterator() { 641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.entryIterator(); 651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public ImmutableSortedMultiset<E> descendingMultiset() { 691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward; 701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public ImmutableSortedMultiset<E> headMultiset(E upperBound, BoundType boundType) { 741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.tailMultiset(upperBound, boundType).descendingMultiset(); 751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public ImmutableSortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) { 791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.headMultiset(lowerBound, boundType).descendingMultiset(); 801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert UnmodifiableIterator<Entry<E>> entryIterator() { 841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.descendingEntryIterator(); 851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert int distinctElements() { 891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.distinctElements(); 901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert boolean isPartialView() { 941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return forward.isPartialView(); 951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 97