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;
22
23import java.util.Map;
24import java.util.Map.Entry;
25
26/**
27 * This class implements the GWT serialization of {@link HashBasedTable}.
28 *
29 * @author Hayward Chan
30 */
31public class HashBasedTable_CustomFieldSerializer {
32
33  public static void deserialize(SerializationStreamReader reader,
34      HashBasedTable<?, ?, ?> instance) {
35  }
36
37  public static HashBasedTable<Object, Object, Object> instantiate(
38      SerializationStreamReader reader) throws SerializationException {
39    Map<?, ?> hashMap = (Map<?, ?>) reader.readObject();
40
41    HashBasedTable<Object, Object, Object> table = HashBasedTable.create();
42    for (Entry<?, ?> row : hashMap.entrySet()) {
43      table.row(row.getKey()).putAll((Map<?, ?>) row.getValue());
44    }
45    return table;
46  }
47
48  public static void serialize(SerializationStreamWriter writer,
49      HashBasedTable<?, ?, ?> instance)
50      throws SerializationException {
51    /*
52     * The backing map of a HashBasedTable is a hash map of hash map.
53     * Therefore, the backing map is serializable (assuming the row,
54     * column and values are all serializable).
55     */
56    writer.writeObject(instance.backingMap);
57  }
58}
59