| /* |
| * 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 java.util.Spliterator; |
| import java.util.function.Consumer; |
| import org.checkerframework.checker.nullness.qual.Nullable; |
| |
| /** |
| * {@code entrySet()} implementation for {@link ImmutableMap}. |
| * |
| * @author Jesse Wilson |
| * @author Kevin Bourrillion |
| */ |
| @GwtCompatible(emulated = true) |
| abstract class ImmutableMapEntrySet<K, V> extends ImmutableSet<Entry<K, V>> { |
| static final class RegularEntrySet<K, V> extends ImmutableMapEntrySet<K, V> { |
| private final transient ImmutableMap<K, V> map; |
| private final transient ImmutableList<Entry<K, V>> entries; |
| |
| RegularEntrySet(ImmutableMap<K, V> map, Entry<K, V>[] entries) { |
| this(map, ImmutableList.<Entry<K, V>>asImmutableList(entries)); |
| } |
| |
| RegularEntrySet(ImmutableMap<K, V> map, ImmutableList<Entry<K, V>> entries) { |
| this.map = map; |
| this.entries = entries; |
| } |
| |
| @Override |
| ImmutableMap<K, V> map() { |
| return map; |
| } |
| |
| @Override |
| @GwtIncompatible("not used in GWT") |
| int copyIntoArray(Object[] dst, int offset) { |
| return entries.copyIntoArray(dst, offset); |
| } |
| |
| @Override |
| public UnmodifiableIterator<Entry<K, V>> iterator() { |
| return entries.iterator(); |
| } |
| |
| @Override |
| public Spliterator<Entry<K, V>> spliterator() { |
| return entries.spliterator(); |
| } |
| |
| @Override |
| public void forEach(Consumer<? super Entry<K, V>> action) { |
| entries.forEach(action); |
| } |
| |
| @Override |
| ImmutableList<Entry<K, V>> createAsList() { |
| return new RegularImmutableAsList<>(this, entries); |
| } |
| } |
| |
| ImmutableMapEntrySet() {} |
| |
| abstract ImmutableMap<K, V> map(); |
| |
| @Override |
| public int size() { |
| return map().size(); |
| } |
| |
| @Override |
| public boolean contains(@Nullable Object object) { |
| if (object instanceof Entry) { |
| Entry<?, ?> entry = (Entry<?, ?>) object; |
| V value = map().get(entry.getKey()); |
| return value != null && value.equals(entry.getValue()); |
| } |
| return false; |
| } |
| |
| @Override |
| boolean isPartialView() { |
| return map().isPartialView(); |
| } |
| |
| @Override |
| @GwtIncompatible // not used in GWT |
| boolean isHashCodeFast() { |
| return map().isHashCodeFast(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return map().hashCode(); |
| } |
| |
| @GwtIncompatible // serialization |
| @Override |
| Object writeReplace() { |
| return new EntrySetSerializedForm<>(map()); |
| } |
| |
| @GwtIncompatible // serialization |
| private static class EntrySetSerializedForm<K, V> implements Serializable { |
| final ImmutableMap<K, V> map; |
| |
| EntrySetSerializedForm(ImmutableMap<K, V> map) { |
| this.map = map; |
| } |
| |
| Object readResolve() { |
| return map.entrySet(); |
| } |
| |
| private static final long serialVersionUID = 0; |
| } |
| } |