Uses of Class org.apache.hadoop.io.LongWritable (Hadoop 0.20.2+320 API)
Date: 2010-06-28

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## 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.mapred.lib.db Package
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` | `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()` Deprecated.

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)` Deprecated.

Methods in org.apache.hadoop.mapred with parameters of type LongWritable
`boolean` | `LineRecordReader.next(LongWritable key, Text value)` Deprecated. 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` | `RegexMapper.map(K key, Text value, OutputCollector<Text,LongWritable> output, Reporter reporter)`
`void` | `TokenCountMapper.map(K key, Text value, OutputCollector<Text,LongWritable> output, Reporter reporter)` Deprecated.
`void` | `LongSumReducer.reduce(K key, Iterator<LongWritable> values, OutputCollector<K,LongWritable> output, Reporter reporter)` Deprecated.
`void` | `LongSumReducer.reduce(K key, Iterator<LongWritable> values, OutputCollector<K,LongWritable> output, Reporter reporter)` Deprecated.

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)` Deprecated. 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>` | `OracleDataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, Configuration conf)`
`protected RecordReader<LongWritable,T>` | `DBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, Configuration conf)`
`protected RecordReader<LongWritable,T>` | `DataDrivenDBInputFormat.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)`

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)`

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