| /* |
| * Copyright (C) 2008 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.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import java.io.Serializable; |
| import java.util.Map.Entry; |
| import org.checkerframework.checker.nullness.compatqual.NullableDecl; |
| |
| /** |
| * {@code values()} implementation for {@link ImmutableMap}. |
| * |
| * @author Jesse Wilson |
| * @author Kevin Bourrillion |
| */ |
| @GwtCompatible(emulated = true) |
| final class ImmutableMapValues<K, V> extends ImmutableCollection<V> { |
| private final ImmutableMap<K, V> map; |
| |
| ImmutableMapValues(ImmutableMap<K, V> map) { |
| this.map = map; |
| } |
| |
| @Override |
| public int size() { |
| return map.size(); |
| } |
| |
| @Override |
| public UnmodifiableIterator<V> iterator() { |
| return new UnmodifiableIterator<V>() { |
| final UnmodifiableIterator<Entry<K, V>> entryItr = map.entrySet().iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return entryItr.hasNext(); |
| } |
| |
| @Override |
| public V next() { |
| return entryItr.next().getValue(); |
| } |
| }; |
| } |
| |
| @Override |
| public boolean contains(@NullableDecl Object object) { |
| return object != null && Iterators.contains(iterator(), object); |
| } |
| |
| @Override |
| boolean isPartialView() { |
| return true; |
| } |
| |
| @Override |
| public ImmutableList<V> asList() { |
| final ImmutableList<Entry<K, V>> entryList = map.entrySet().asList(); |
| return new ImmutableList<V>() { |
| @Override |
| public V get(int index) { |
| return entryList.get(index).getValue(); |
| } |
| |
| @Override |
| boolean isPartialView() { |
| return true; |
| } |
| |
| @Override |
| public int size() { |
| return entryList.size(); |
| } |
| }; |
| } |
| |
| @GwtIncompatible // serialization |
| @Override |
| Object writeReplace() { |
| return new SerializedForm<V>(map); |
| } |
| |
| @GwtIncompatible // serialization |
| private static class SerializedForm<V> implements Serializable { |
| final ImmutableMap<?, V> map; |
| |
| SerializedForm(ImmutableMap<?, V> map) { |
| this.map = map; |
| } |
| |
| Object readResolve() { |
| return map.values(); |
| } |
| |
| private static final long serialVersionUID = 0; |
| } |
| } |