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.lang;
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    /**
023     * Custom field serializer for the Java Byte class. If we have a class that is
024     * final and not default constructable that has a custom serializer
025     */
026    public final class Byte_CustomFieldSerializer {
027      /**
028       * Return an instance of the java.lang.Byte
029       * 
030       * @param streamReader
031       * @return
032       */
033      public static Byte instantiate(SerializationStreamReader streamReader) throws SerializationException {
034        byte value = streamReader.readByte();
035        return new Byte(value);
036      }
037    
038      /**
039       * Save an object state into a stream.
040       * 
041       * @param streamWriter
042       * @param instance
043       */
044      public static void serialize(SerializationStreamWriter streamWriter,
045          Byte instance) throws SerializationException {
046        streamWriter.writeByte(instance.byteValue());
047      }
048    
049      /**
050       * 
051       * @param streamReader
052       * @param instance
053       */
054      public static void deserialize(SerializationStreamReader streamReader,
055          Byte instance) {
056        // Purposely empty since java.lang.Byte is not default constructable, the
057        // instantiate method above
058      }
059    }