/**
* 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 io.dstream.tez.io;
/**
* This class represents a universal Writable with the goal of recognizing
* and properly writing/reading multiple types of data.
* More documentation to follow as its design progresses, but at the moment the mechanism is simple:
* 1. Prepend each value with a byte representing its type
* 2. Write value data as byte[]
* For fixed formats such as Int, Long etc., its standard byte representation is used (e.g., Int = 4 bytes)
* For Objects (variable length) object serialization is used with custom se/deser to be exposed for
* customization and optimization
*
* This class is not public nor it is meant/designed as thread-safe.
*/
public class ValueWritable<T> extends TypeAwareWritable<T> {
}