1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package java.io; 19 20 /** 21 * An empty marker interface for classes that want to support serialization and 22 * deserialization based on the {@code ObjectOutputStream} and {@code 23 * ObjectInputStream} classes. Implementing this interface is enough to make 24 * most classes serializable. If a class needs more fine-grained control over 25 * the serialization process (for example to implement compatibility with older 26 * versions of the class), it can achieve this by providing the following two 27 * methods (signatures must match exactly): 28 * <p> 29 * {@code private void writeObject(java.io.ObjectOutputStream out) throws 30 * IOException} 31 * <p> 32 * {@code private void readObject(java.io.ObjectInputStream in) throws 33 * IOException, ClassNotFoundException} 34 */ 35 public interface Serializable { 36 /* empty */ 37 } 38