Uses of Class
org.apache.hadoop.io.LongWritable

Packages that use LongWritable

org.apache.hadoop.examples	Hadoop example code.
org.apache.hadoop.mapred	A software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) parallelly on large clusters (thousands of nodes) built of commodity hardware in a reliable, fault-tolerant manner.
org.apache.hadoop.mapred.lib	Library of generally useful mappers, reducers, and partitioners.

Uses of LongWritable in org.apache.hadoop.examples

Methods in org.apache.hadoop.examples with parameters of type LongWritable

void	WordCount.MapClass.map(LongWritable key, Text value, OutputCollector<Text,IntWritable> output, Reporter reporter)
void	PiEstimator.PiMapper.map(LongWritable key, Writable val, OutputCollector<LongWritable,LongWritable> out, Reporter reporter) Map method.
void	PiEstimator.PiReducer.reduce(LongWritable key, Iterator<LongWritable> values, OutputCollector<WritableComparable,Writable> output, Reporter reporter) Reduce method.

Method parameters in org.apache.hadoop.examples with type arguments of type LongWritable

void	PiEstimator.PiMapper.map(LongWritable key, Writable val, OutputCollector<LongWritable,LongWritable> out, Reporter reporter) Map method.
void	PiEstimator.PiMapper.map(LongWritable key, Writable val, OutputCollector<LongWritable,LongWritable> out, Reporter reporter) Map method.
void	PiEstimator.PiReducer.reduce(LongWritable key, Iterator<LongWritable> values, OutputCollector<WritableComparable,Writable> output, Reporter reporter) Reduce method.

Uses of LongWritable in org.apache.hadoop.mapred

Methods in org.apache.hadoop.mapred that return LongWritable

LongWritable

LineRecordReader.createKey()

Methods in org.apache.hadoop.mapred that return types with arguments of type LongWritable

RecordReader<LongWritable,Text>

TextInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)

Methods in org.apache.hadoop.mapred with parameters of type LongWritable

boolean

LineRecordReader.next(LongWritable key, Text value) Read a line.

Uses of LongWritable in org.apache.hadoop.mapred.lib

Methods in org.apache.hadoop.mapred.lib that return types with arguments of type LongWritable

RecordReader<LongWritable,Text>

NLineInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)

Method parameters in org.apache.hadoop.mapred.lib with type arguments of type LongWritable

void	TokenCountMapper.map(K key, Text value, OutputCollector<Text,LongWritable> output, Reporter reporter)
void	RegexMapper.map(K key, Text value, OutputCollector<Text,LongWritable> output, Reporter reporter)
void	LongSumReducer.reduce(K key, Iterator<LongWritable> values, OutputCollector<K,LongWritable> output, Reporter reporter)
void	LongSumReducer.reduce(K key, Iterator<LongWritable> values, OutputCollector<K,LongWritable> output, Reporter reporter)