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 
 

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.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.
 



Copyright © 2008 The Apache Software Foundation