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

Packages that use LongWritable

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.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.
org.apache.hadoop.mapred.lib.db	org.apache.hadoop.mapred.lib.db Package
org.apache.hadoop.mapreduce.lib.db
org.apache.hadoop.mapreduce.lib.input
org.apache.hadoop.mapreduce.lib.reduce
org.apache.hadoop.typedbytes	Typed bytes are sequences of bytes in which the first byte is a type code.

Uses of LongWritable in org.apache.hadoop.examples

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

void	PiEstimator.PiMapper.map(LongWritable offset, LongWritable size, OutputCollector<BooleanWritable,LongWritable> out, Reporter reporter) Map method.
void	SecondarySort.MapClass.map(LongWritable inKey, Text inValue, Mapper.Context context)

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

void	PiEstimator.PiMapper.map(LongWritable offset, LongWritable size, OutputCollector<BooleanWritable,LongWritable> out, Reporter reporter) Map method.
void	MultiFileWordCount.MapClass.map(MultiFileWordCount.WordOffset key, Text value, OutputCollector<Text,LongWritable> output, Reporter reporter)
void	PiEstimator.PiReducer.reduce(BooleanWritable isInside, Iterator<LongWritable> values, OutputCollector<WritableComparable<?>,Writable> output, Reporter reporter) Accumulate number of points inside/outside results from the mappers.

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

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

void	TeraGen.SortGenMapper.map(LongWritable row, NullWritable ignored, OutputCollector<Text,Text> output, Reporter reporter)

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)

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

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

LongWritable

DBInputFormat.DBRecordReader.createKey() Create an object of the appropriate type to be used as a key.

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

RecordReader<LongWritable,T>

DBInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter) Get the RecordReader for the given InputSplit.

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

boolean

DBInputFormat.DBRecordReader.next(LongWritable key, T value) Reads the next key/value pair from the input for processing.

Uses of LongWritable in org.apache.hadoop.mapreduce.lib.db

Methods in org.apache.hadoop.mapreduce.lib.db that return LongWritable

LongWritable

DBRecordReader.getCurrentKey() Get the current key

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

protected RecordReader<LongWritable,T>	DBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, Configuration conf)
protected RecordReader<LongWritable,T>	DataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, Configuration conf)
protected RecordReader<LongWritable,T>	OracleDataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, Configuration conf)
RecordReader<LongWritable,T>	DBInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context) Create a record reader for a given split.

Methods in org.apache.hadoop.mapreduce.lib.db with parameters of type LongWritable

boolean

DBRecordReader.next(LongWritable key, T value) Deprecated. Use DBRecordReader.nextKeyValue()

Uses of LongWritable in org.apache.hadoop.mapreduce.lib.input

Methods in org.apache.hadoop.mapreduce.lib.input that return LongWritable

LongWritable

LineRecordReader.getCurrentKey()

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

RecordReader<LongWritable,Text>	TextInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
RecordReader<LongWritable,Text>	NLineInputFormat.createRecordReader(InputSplit genericSplit, TaskAttemptContext context)

Uses of LongWritable in org.apache.hadoop.mapreduce.lib.reduce

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

void	LongSumReducer.reduce(KEY key, Iterable<LongWritable> values, Reducer.Context context)

Uses of LongWritable in org.apache.hadoop.typedbytes

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

LongWritable	TypedBytesWritableInput.readLong()
LongWritable	TypedBytesWritableInput.readLong(LongWritable lw)

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

LongWritable	TypedBytesWritableInput.readLong(LongWritable lw)
void	TypedBytesWritableOutput.writeLong(LongWritable lw)