Uses of Class org.apache.hadoop.io.NullWritable (Hadoop 1.2.1 API)
Date: 2013-07-22

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## Uses of Class
org.apache.hadoop.io.NullWritable

Packages that use NullWritable
org.apache.hadoop.examples | Hadoop example code.
org.apache.hadoop.examples.terasort | This package consists of 3 map/reduce applications for Hadoop to compete in the annual terabyte sort competition.
org.apache.hadoop.io | Generic i/o code for use when reading and writing data to the network, to databases, and to files.

Uses of NullWritable in org.apache.hadoop.examples

Methods in org.apache.hadoop.examples with parameters of type NullWritable
`int` | `SleepJob.getPartition(IntWritable k, NullWritable v, int numPartitions)`

Method parameters in org.apache.hadoop.examples with type arguments of type NullWritable
`void` | `SleepJob.map(IntWritable key, IntWritable value, OutputCollector<IntWritable,NullWritable> output, Reporter reporter)`
`void` | `SleepJob.reduce(IntWritable key, Iterator<NullWritable> values, OutputCollector<NullWritable,NullWritable> output, Reporter reporter)`
`void` | `SleepJob.reduce(IntWritable key, Iterator<NullWritable> values, OutputCollector<NullWritable,NullWritable> output, Reporter reporter)`
`void` | `SleepJob.reduce(IntWritable key, Iterator<NullWritable> values, OutputCollector<NullWritable,NullWritable> output, Reporter reporter)`

Uses of NullWritable in org.apache.hadoop.examples.terasort

Methods in org.apache.hadoop.examples.terasort with parameters of type NullWritable
`void` | `TeraGen.SortGenMapper.map(LongWritable row, NullWritable ignored, OutputCollector<Text,Text> output, Reporter reporter)`

Uses of NullWritable in org.apache.hadoop.io

Methods in org.apache.hadoop.io that return NullWritable
`static NullWritable` | `NullWritable.get()` Returns the single instance of this class.

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