001/*
002 * Copyright (C) 2009 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect;
018
019import com.google.gwt.user.client.rpc.SerializationException;
020import com.google.gwt.user.client.rpc.SerializationStreamReader;
021import com.google.gwt.user.client.rpc.SerializationStreamWriter;
022import com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase;
023import java.util.List;
024
025/**
026 * This class implements the GWT serialization of {@link ImmutableEnumSet}.
027 *
028 * @author Hayward Chan
029 */
030public class ImmutableEnumSet_CustomFieldSerializer {
031
032  public static void deserialize(SerializationStreamReader reader, ImmutableEnumSet<?> instance) {}
033
034  public static <E extends Enum<E>> ImmutableEnumSet<?> instantiate(
035      SerializationStreamReader reader) throws SerializationException {
036    List<E> deserialized = Lists.newArrayList();
037    Collection_CustomFieldSerializerBase.deserialize(reader, deserialized);
038    /*
039     * It is safe to cast to ImmutableEnumSet because in order for it to be
040     * serialized as an ImmutableEnumSet, it must be non-empty to start
041     * with.
042     */
043    return (ImmutableEnumSet<?>) Sets.immutableEnumSet(deserialized);
044  }
045
046  public static void serialize(SerializationStreamWriter writer, ImmutableEnumSet<?> instance)
047      throws SerializationException {
048    Collection_CustomFieldSerializerBase.serialize(writer, instance);
049  }
050}