View Javadoc
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 com.google.gwt.user.client.rpc.SerializationException;
20  import com.google.gwt.user.client.rpc.SerializationStreamReader;
21  import com.google.gwt.user.client.rpc.SerializationStreamWriter;
22  import com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase;
23  import java.util.List;
24  
25  /**
26   * This class implements the GWT serialization of {@link RegularImmutableSet}.
27   *
28   * @author Hayward Chan
29   */
30  public class RegularImmutableSet_CustomFieldSerializer {
31  
32    public static void deserialize(
33        SerializationStreamReader reader, RegularImmutableSet<?> instance) {}
34  
35    public static RegularImmutableSet<Object> instantiate(SerializationStreamReader reader)
36        throws SerializationException {
37      List<Object> elements = Lists.newArrayList();
38      Collection_CustomFieldSerializerBase.deserialize(reader, elements);
39      /*
40       * For this custom field serializer to be invoked, the set must have been
41       * RegularImmutableSet before it's serialized.  Since RegularImmutableSet
42       * always have two or more elements, ImmutableSet.copyOf always return
43       * a RegularImmutableSet back.
44       */
45      return (RegularImmutableSet<Object>) ImmutableSet.copyOf(elements);
46    }
47  
48    public static void serialize(SerializationStreamWriter writer, RegularImmutableSet<?> instance)
49        throws SerializationException {
50      Collection_CustomFieldSerializerBase.serialize(writer, instance);
51    }
52  }