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Apache Hadoop Common

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/**
 * 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.
 */

/**
 *
 * Raw erasure coders.
 *
 * Raw erasure coder is part of erasure codec framework, where erasure coder is
 * used to encode/decode a group of blocks (BlockGroup) according to the codec
 * specific BlockGroup layout and logic. An erasure coder extracts chunks of
 * data from the blocks and can employ various low level raw erasure coders to
 * perform encoding/decoding against the chunks.
 *
 * To distinguish from erasure coder, here raw erasure coder is used to mean the
 * low level constructs, since it only takes care of the math calculation with
 * a group of byte buffers.
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
package org.apache.hadoop.io.erasurecode.rawcoder;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;