Package org.apache.hadoop.io.erasurecode.coder

Class XORErasureEncoder

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.io.erasurecode.coder.ErasureEncoder

org.apache.hadoop.io.erasurecode.coder.XORErasureEncoder

All Implemented Interfaces:

Configurable, ErasureCoder

@Private
public class XORErasureEncoder
extends ErasureEncoder

Xor erasure encoder that encodes a block group. It implements ErasureCoder.

Constructor Summary

Constructors

Constructor	Description
XORErasureEncoder(ErasureCoderOptions options)

Method Summary

Modifier and Type	Method	Description
protected ErasureCodingStep	prepareEncodingStep(ECBlockGroup blockGroup)	Perform encoding against a block group.

Methods inherited from class org.apache.hadoop.io.erasurecode.coder.ErasureEncoder

calculateCoding, getInputBlocks, getNumDataUnits, getNumParityUnits, getOptions, getOutputBlocks, preferDirectBuffer, release

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Details

XORErasureEncoder

public XORErasureEncoder(ErasureCoderOptions options)

Method Details

prepareEncodingStep

protected ErasureCodingStep prepareEncodingStep(ECBlockGroup blockGroup)

Description copied from class: ErasureEncoder

Perform encoding against a block group.

Specified by:

prepareEncodingStep in class ErasureEncoder

Parameters:

blockGroup - blockGroup.

Returns:

encoding step for caller to do the real work