ml.shifu.guagua.example.sum
类 SumSequenceFileWorker

java.lang.Object
  ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>>
      ml.shifu.guagua.example.sum.SumSequenceFileWorker

所有已实现的接口：

ml.shifu.guagua.worker.WorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>>

public class SumSequenceFileWorker
extends ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>>

SumSequenceFileWorker is used to accumulate the sum value for each line.

Each line of input should be number.

The master's sum value will be added to current iteration.

构造方法摘要

SumSequenceFileWorker()

方法摘要

GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>	doCompute(ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)
void	init(ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)
void	initRecordReader(ml.shifu.guagua.io.GuaguaFileSplit fileSplit)
void	load(GuaguaWritableAdapter<org.apache.hadoop.io.Text> currentKey, GuaguaWritableAdapter<org.apache.hadoop.io.Text> currentValue, ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)

从类 ml.shifu.guagua.worker.AbstractWorkerComputable 继承的方法

compute, getRecordReader, postLoad, preLoad, setRecordReader

从类 java.lang.Object 继承的方法

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

构造方法详细信息

SumSequenceFileWorker

public SumSequenceFileWorker()

方法详细信息

init

public void init(ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)

指定者：

类 ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>> 中的 init

doCompute

public GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable> doCompute(ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)

指定者：

类 ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>> 中的 doCompute

load

public void load(GuaguaWritableAdapter<org.apache.hadoop.io.Text> currentKey,
                 GuaguaWritableAdapter<org.apache.hadoop.io.Text> currentValue,
                 ml.shifu.guagua.worker.WorkerContext<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>> workerContext)

指定者：

类 ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>> 中的 load

initRecordReader

public void initRecordReader(ml.shifu.guagua.io.GuaguaFileSplit fileSplit)
                      throws IOException

指定者：

类 ml.shifu.guagua.worker.AbstractWorkerComputable<GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.LongWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>,GuaguaWritableAdapter<org.apache.hadoop.io.Text>> 中的 initRecordReader

抛出：

IOException