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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  
17  package com.google.common.collect;
18  
19  import static com.google.common.base.Preconditions.checkNotNull;
20  
21  import com.google.gwt.user.client.rpc.SerializationException;
22  import com.google.gwt.user.client.rpc.SerializationStreamReader;
23  import com.google.gwt.user.client.rpc.SerializationStreamWriter;
24  
25  /**
26   * This class implements the GWT serialization of {@link SingletonImmutableBiMap}.
27   *
28   * @author Chris Povirk
29   */
30  public class SingletonImmutableBiMap_CustomFieldSerializer {
31  
32    public static void deserialize(
33        SerializationStreamReader reader, SingletonImmutableBiMap<?, ?> instance) {}
34  
35    public static SingletonImmutableBiMap<Object, Object> instantiate(
36        SerializationStreamReader reader) throws SerializationException {
37      Object key = checkNotNull(reader.readObject());
38      Object value = checkNotNull(reader.readObject());
39      return new SingletonImmutableBiMap<>(key, value);
40    }
41  
42    public static void serialize(
43        SerializationStreamWriter writer, SingletonImmutableBiMap<?, ?> instance)
44        throws SerializationException {
45      writer.writeObject(instance.singleKey);
46      writer.writeObject(instance.singleValue);
47    }
48  }