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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 * Defines an interface for classes that want to be serializable, but have their
22 * own binary representation.
24 public interface Externalizable extends Serializable {
26 * Reads the next object from the ObjectInput <code>input</code>.
29 * the ObjectInput from which the next object is read.
31 * if an error occurs attempting to read from {@code input}.
32 * @throws ClassNotFoundException
33 * if the class of the instance being loaded cannot be found.
35 public void readExternal(ObjectInput input) throws IOException,
36 ClassNotFoundException;
39 * Writes the receiver to the ObjectOutput <code>output</code>.
42 * the ObjectOutput to write the object to.
44 * if an error occurs attempting to write to {@code output}.
46 public void writeExternal(ObjectOutput output) throws IOException;