10888a09821a98ac0680fad765217302858e70fa4Paul Duffin/* 20888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Copyright (C) 2009 The Guava Authors 30888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 40888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Licensed under the Apache License, Version 2.0 (the "License"); 50888a09821a98ac0680fad765217302858e70fa4Paul Duffin * you may not use this file except in compliance with the License. 60888a09821a98ac0680fad765217302858e70fa4Paul Duffin * You may obtain a copy of the License at 70888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 80888a09821a98ac0680fad765217302858e70fa4Paul Duffin * http://www.apache.org/licenses/LICENSE-2.0 90888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 100888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Unless required by applicable law or agreed to in writing, software 110888a09821a98ac0680fad765217302858e70fa4Paul Duffin * distributed under the License is distributed on an "AS IS" BASIS, 120888a09821a98ac0680fad765217302858e70fa4Paul Duffin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 130888a09821a98ac0680fad765217302858e70fa4Paul Duffin * See the License for the specific language governing permissions and 140888a09821a98ac0680fad765217302858e70fa4Paul Duffin * limitations under the License. 150888a09821a98ac0680fad765217302858e70fa4Paul Duffin */ 160888a09821a98ac0680fad765217302858e70fa4Paul Duffin 170888a09821a98ac0680fad765217302858e70fa4Paul Duffinpackage com.google.common.collect; 180888a09821a98ac0680fad765217302858e70fa4Paul Duffin 190888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.annotations.GwtCompatible; 200888a09821a98ac0680fad765217302858e70fa4Paul Duffin 210888a09821a98ac0680fad765217302858e70fa4Paul Duffin/** 220888a09821a98ac0680fad765217302858e70fa4Paul Duffin * List returned by {@link ImmutableCollection#asList} that delegates {@code contains} checks 230888a09821a98ac0680fad765217302858e70fa4Paul Duffin * to the backing collection. 240888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 250888a09821a98ac0680fad765217302858e70fa4Paul Duffin * @author Jared Levy 260888a09821a98ac0680fad765217302858e70fa4Paul Duffin * @author Louis Wasserman 270888a09821a98ac0680fad765217302858e70fa4Paul Duffin */ 280888a09821a98ac0680fad765217302858e70fa4Paul Duffin@GwtCompatible(serializable = true, emulated = true) 290888a09821a98ac0680fad765217302858e70fa4Paul Duffin@SuppressWarnings("serial") 300888a09821a98ac0680fad765217302858e70fa4Paul Duffinabstract class ImmutableAsList<E> extends ImmutableList<E> { 310888a09821a98ac0680fad765217302858e70fa4Paul Duffin abstract ImmutableCollection<E> delegateCollection(); 320888a09821a98ac0680fad765217302858e70fa4Paul Duffin 330888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public boolean contains(Object target) { 340888a09821a98ac0680fad765217302858e70fa4Paul Duffin // The collection's contains() is at least as fast as ImmutableList's 350888a09821a98ac0680fad765217302858e70fa4Paul Duffin // and is often faster. 360888a09821a98ac0680fad765217302858e70fa4Paul Duffin return delegateCollection().contains(target); 370888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 380888a09821a98ac0680fad765217302858e70fa4Paul Duffin 390888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 400888a09821a98ac0680fad765217302858e70fa4Paul Duffin public int size() { 410888a09821a98ac0680fad765217302858e70fa4Paul Duffin return delegateCollection().size(); 420888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 430888a09821a98ac0680fad765217302858e70fa4Paul Duffin 440888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 450888a09821a98ac0680fad765217302858e70fa4Paul Duffin public boolean isEmpty() { 460888a09821a98ac0680fad765217302858e70fa4Paul Duffin return delegateCollection().isEmpty(); 470888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 480888a09821a98ac0680fad765217302858e70fa4Paul Duffin 490888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 500888a09821a98ac0680fad765217302858e70fa4Paul Duffin boolean isPartialView() { 510888a09821a98ac0680fad765217302858e70fa4Paul Duffin return delegateCollection().isPartialView(); 520888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 530888a09821a98ac0680fad765217302858e70fa4Paul Duffin} 540888a09821a98ac0680fad765217302858e70fa4Paul Duffin 55