1/*
2 * Copyright (C) 2009 The Guava Authors
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.google.common.collect;
18
19import com.google.gwt.user.client.rpc.SerializationException;
20import com.google.gwt.user.client.rpc.SerializationStreamReader;
21import com.google.gwt.user.client.rpc.SerializationStreamWriter;
22import com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase;
23
24import java.util.List;
25
26/**
27 * This class implements the GWT serialization of {@link RegularImmutableSet}.
28 *
29 * @author Hayward Chan
30 */
31public class RegularImmutableSet_CustomFieldSerializer {
32
33  public static void deserialize(SerializationStreamReader reader,
34      RegularImmutableSet<?> instance) {
35  }
36
37  public static RegularImmutableSet<Object> instantiate(
38      SerializationStreamReader reader) throws SerializationException {
39    List<Object> elements = Lists.newArrayList();
40    Collection_CustomFieldSerializerBase.deserialize(reader, elements);
41    /*
42     * For this custom field serializer to be invoked, the set must have been
43     * RegularImmutableSet before it's serialized.  Since RegularImmutableSet
44     * always have two or more elements, ImmutableSet.copyOf always return
45     * a RegularImmutableSet back.
46     */
47    return (RegularImmutableSet<Object>) ImmutableSet.copyOf(elements);
48  }
49
50  public static void serialize(SerializationStreamWriter writer,
51      RegularImmutableSet<?> instance) throws SerializationException {
52    Collection_CustomFieldSerializerBase.serialize(writer, instance);
53  }
54}
55