org.apache.iotdb.hadoop.tsfile

类 TSMRWriteExample.TSReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.NullWritable,HDFSTSRecord>

org.apache.iotdb.hadoop.tsfile.TSMRWriteExample.TSReducer

封闭类:

TSMRWriteExample

public static class TSMRWriteExample.TSReducer
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.NullWritable,HDFSTSRecord>

This reducer calculate the average value.

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

构造器概要

构造器

构造器和说明
TSReducer()

方法概要

限定符和类型	方法和说明
protected void	reduce(org.apache.hadoop.io.Text key, java.lang.Iterable<org.apache.hadoop.io.MapWritable> values, org.apache.hadoop.mapreduce.Reducer.Context context)

从类继承的方法 org.apache.hadoop.mapreduce.Reducer

cleanup, run, setup

从类继承的方法 java.lang.Object

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

构造器详细资料

TSReducer

public TSReducer()

方法详细资料

reduce

protected void reduce(org.apache.hadoop.io.Text key,
                      java.lang.Iterable<org.apache.hadoop.io.MapWritable> values,
                      org.apache.hadoop.mapreduce.Reducer.Context context)
               throws java.io.IOException,
                      java.lang.InterruptedException

覆盖:

reduce 在类中 org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.NullWritable,HDFSTSRecord>

抛出:

java.io.IOException

java.lang.InterruptedException