001    /*
002     * Copyright 2006 Google Inc.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005     * use this file except in compliance with the License. You may obtain a copy of
006     * the License at
007     * 
008     * http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013     * License for the specific language governing permissions and limitations under
014     * the License.
015     */
016    package com.google.gwt.user.client.rpc.core.java.util;
017    
018    import com.google.gwt.user.client.rpc.SerializationException;
019    import com.google.gwt.user.client.rpc.SerializationStreamReader;
020    import com.google.gwt.user.client.rpc.SerializationStreamWriter;
021    
022    import java.util.HashSet;
023    import java.util.Iterator;
024    
025    /**
026     * Custom field serializer for the Java HashSet class.
027     */
028    public final class HashSet_CustomFieldSerializer {
029      /**
030       * @param streamWriter
031       * @param instance
032       */
033      public static void serialize(SerializationStreamWriter streamWriter,
034          HashSet instance) throws SerializationException {
035        int size = instance.size();
036    
037        Iterator iter = instance.iterator();
038        while (iter.hasNext()) {
039          Object obj = iter.next();
040    
041          streamWriter.writeObject(obj);
042        }
043      }
044    
045      /**
046       * @param streamReader
047       * @param instance
048       */
049      public static void deserialize(SerializationStreamReader streamReader,
050          HashSet instance) throws SerializationException {
051        int size = streamReader.readInt();
052    
053        for (int i = 0; i < size; ++i) {
054          Object obj = streamReader.readObject();
055    
056          instance.add(obj);
057        }
058      }
059    }