/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.hadoop.io.serializer; import java.io.IOException; import java.io.OutputStream; /** * <p> * Provides a facility for serializing objects of type <T> to an * {@link OutputStream}. * </p> * * <p> * Serializers are stateful, but must not buffer the output since * other producers may write to the output between calls to * {@link #serialize(Object)}. * </p> * @param <T> */ public interface Serializer<T> { /** * <p>Prepare the serializer for writing.</p> */ void open(OutputStream out) throws IOException; /** * <p>Serialize <code>t</code> to the underlying output stream.</p> */ void serialize(T t) throws IOException; /** * <p>Close the underlying output stream and clear up any resources.</p> */ void close() throws IOException; }