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 23 import java.util.Map; 24 import java.util.Map.Entry; 25 26 /** 27 * This class implements the GWT serialization of {@link HashBasedTable}. 28 * 29 * @author Hayward Chan 30 */ 31 public 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
