1 /* 2 * Copyright (C) 2012 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.base; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.gwt.user.client.rpc.SerializationException; 21 import com.google.gwt.user.client.rpc.SerializationStreamReader; 22 import com.google.gwt.user.client.rpc.SerializationStreamWriter; 23 24 /** 25 * Custom GWT serializer for {@link Present}. 26 * 27 * @author Chris Povirk 28 */ 29 @GwtCompatible 30 public class Present_CustomFieldSerializer { deserialize(SerializationStreamReader reader, Present<?> instance)31 public static void deserialize(SerializationStreamReader reader, Present<?> instance) {} 32 instantiate(SerializationStreamReader reader)33 public static Present<Object> instantiate(SerializationStreamReader reader) 34 throws SerializationException { 35 return (Present<Object>) Optional.of(reader.readObject()); 36 } 37 serialize(SerializationStreamWriter writer, Present<?> instance)38 public static void serialize(SerializationStreamWriter writer, Present<?> instance) 39 throws SerializationException { 40 writer.writeObject(instance.get()); 41 } 42 } 43