diff options
Diffstat (limited to 'guava/src/com/google/common/collect/ImmutableMapKeySet.java')
-rw-r--r-- | guava/src/com/google/common/collect/ImmutableMapKeySet.java | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/guava/src/com/google/common/collect/ImmutableMapKeySet.java b/guava/src/com/google/common/collect/ImmutableMapKeySet.java deleted file mode 100644 index fbb59d8..0000000 --- a/guava/src/com/google/common/collect/ImmutableMapKeySet.java +++ /dev/null @@ -1,95 +0,0 @@ -/* - * 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 javax.annotation.Nullable; - -/** - * {@code keySet()} implementation for {@link ImmutableMap}. - * - * @author Jesse Wilson - * @author Kevin Bourrillion - */ -@GwtCompatible(emulated = true) -final class ImmutableMapKeySet<K, V> extends ImmutableSet<K> { - private final ImmutableMap<K, V> map; - - ImmutableMapKeySet(ImmutableMap<K, V> map) { - this.map = map; - } - - @Override - public int size() { - return map.size(); - } - - @Override - public UnmodifiableIterator<K> iterator() { - return asList().iterator(); - } - - @Override - public boolean contains(@Nullable Object object) { - return map.containsKey(object); - } - - @Override - ImmutableList<K> createAsList() { - final ImmutableList<Entry<K, V>> entryList = map.entrySet().asList(); - return new ImmutableAsList<K>() { - - @Override - public K get(int index) { - return entryList.get(index).getKey(); - } - - @Override - ImmutableCollection<K> delegateCollection() { - return ImmutableMapKeySet.this; - } - - }; - } - - @Override - boolean isPartialView() { - return true; - } - - @GwtIncompatible("serialization") - @Override Object writeReplace() { - return new KeySetSerializedForm<K>(map); - } - - @GwtIncompatible("serialization") - private static class KeySetSerializedForm<K> implements Serializable { - final ImmutableMap<K, ?> map; - KeySetSerializedForm(ImmutableMap<K, ?> map) { - this.map = map; - } - Object readResolve() { - return map.keySet(); - } - private static final long serialVersionUID = 0; - } -} |