Uses of Class
org.apache.hadoop.mapreduce.RecordReader

Packages that use RecordReader
org.apache.hadoop.examples Hadoop example code. 
org.apache.hadoop.examples.pi This package consists of a map/reduce application, distbbp, which computes exact binary digits of the mathematical constant π. 
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.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   
org.apache.hadoop.mapreduce.lib.db org.apache.hadoop.mapred.lib.db Package 
org.apache.hadoop.mapreduce.lib.input   
org.apache.hadoop.mapreduce.lib.join Given a set of sorted datasets keyed with the same class and yielding equal partitions, it is possible to effect a join of those datasets prior to the map. 
 

Uses of RecordReader in org.apache.hadoop.examples
 

Subclasses of RecordReader in org.apache.hadoop.examples
static class MultiFileWordCount.CombineFileLineRecordReader
          RecordReader is responsible from extracting records from a chunk of the CombineFileSplit.
 

Methods in org.apache.hadoop.examples that return RecordReader
 RecordReader<MultiFileWordCount.WordOffset,org.apache.hadoop.io.Text> MultiFileWordCount.MyInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable> BaileyBorweinPlouffe.BbpInputFormat.createRecordReader(InputSplit generic, TaskAttemptContext context)
          Create a record reader for a given split.
 

Uses of RecordReader in org.apache.hadoop.examples.pi
 

Methods in org.apache.hadoop.examples.pi that return RecordReader
 RecordReader<org.apache.hadoop.io.NullWritable,SummationWritable> DistSum.Machine.AbstractInputFormat.createRecordReader(InputSplit generic, TaskAttemptContext context)
          Specify how to read the records
 

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

Methods in org.apache.hadoop.examples.terasort that return RecordReader
 RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> TeraInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 

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

Methods in org.apache.hadoop.mapred.lib that return RecordReader
 RecordReader<K,V> CombineFileInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 

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

Subclasses of RecordReader in org.apache.hadoop.mapred.lib.db
protected  class DBInputFormat.DBRecordReader
          A RecordReader that reads records from a SQL table.
 

Uses of RecordReader in org.apache.hadoop.mapreduce
 

Methods in org.apache.hadoop.mapreduce that return RecordReader
abstract  RecordReader<K,V> InputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
          Create a record reader for a given split.
 

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

Subclasses of RecordReader in org.apache.hadoop.mapreduce.lib.db
 class DataDrivenDBRecordReader<T extends DBWritable>
          A RecordReader that reads records from a SQL table, using data-driven WHERE clause splits.
 class DBRecordReader<T extends DBWritable>
          A RecordReader that reads records from a SQL table.
 class MySQLDataDrivenDBRecordReader<T extends DBWritable>
          A RecordReader that reads records from a MySQL table via DataDrivenDBRecordReader
 class MySQLDBRecordReader<T extends DBWritable>
          A RecordReader that reads records from a MySQL table.
 class OracleDataDrivenDBRecordReader<T extends DBWritable>
          A RecordReader that reads records from a Oracle table via DataDrivenDBRecordReader
 class OracleDBRecordReader<T extends DBWritable>
          A RecordReader that reads records from an Oracle SQL table.
 

Methods in org.apache.hadoop.mapreduce.lib.db that return RecordReader
protected  RecordReader<org.apache.hadoop.io.LongWritable,T> DBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, org.apache.hadoop.conf.Configuration conf)
           
protected  RecordReader<org.apache.hadoop.io.LongWritable,T> OracleDataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, org.apache.hadoop.conf.Configuration conf)
           
protected  RecordReader<org.apache.hadoop.io.LongWritable,T> DataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split, org.apache.hadoop.conf.Configuration conf)
           
 RecordReader<org.apache.hadoop.io.LongWritable,T> DBInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
          Create a record reader for a given split.
 

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

Subclasses of RecordReader in org.apache.hadoop.mapreduce.lib.input
 class CombineFileRecordReader<K,V>
          A generic RecordReader that can hand out different recordReaders for each chunk in a CombineFileSplit.
 class KeyValueLineRecordReader
          This class treats a line in the input as a key/value pair separated by a separator character.
static class SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader
          Read records from a SequenceFile as binary (raw) bytes.
 class SequenceFileAsTextRecordReader
          This class converts the input keys and values to their String forms by calling toString() method.
 class SequenceFileRecordReader<K,V>
          An RecordReader for SequenceFiles.
 

Fields in org.apache.hadoop.mapreduce.lib.input declared as RecordReader
protected  RecordReader<K,V> CombineFileRecordReader.curReader
           
 

Fields in org.apache.hadoop.mapreduce.lib.input with type parameters of type RecordReader
protected  Class<? extends RecordReader<K,V>> CombineFileRecordReader.rrClass
           
protected  Constructor<? extends RecordReader<K,V>> CombineFileRecordReader.rrConstructor
           
 

Methods in org.apache.hadoop.mapreduce.lib.input that return RecordReader
 RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text> NLineInputFormat.createRecordReader(InputSplit genericSplit, TaskAttemptContext context)
           
 RecordReader<K,V> SequenceFileInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> SequenceFileAsTextInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
abstract  RecordReader<K,V> CombineFileInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
          This is not implemented yet.
 RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text> TextInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 RecordReader<K,V> SequenceFileInputFilter.createRecordReader(InputSplit split, TaskAttemptContext context)
          Create a record reader for the given split
 RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> KeyValueTextInputFormat.createRecordReader(InputSplit genericSplit, TaskAttemptContext context)
           
 RecordReader<org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable> SequenceFileAsBinaryInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
           
 

Constructor parameters in org.apache.hadoop.mapreduce.lib.input with type arguments of type RecordReader
CombineFileRecordReader(CombineFileSplit split, TaskAttemptContext context, Class<? extends RecordReader<K,V>> rrClass)
          A generic RecordReader that can hand out different recordReaders for each chunk in the CombineFileSplit.
 

Uses of RecordReader in org.apache.hadoop.mapreduce.lib.join
 

Subclasses of RecordReader in org.apache.hadoop.mapreduce.lib.join
 class ComposableRecordReader<K extends WritableComparable<?>,V extends Writable>
          Additional operations required of a RecordReader to participate in a join.
 class CompositeRecordReader<K extends WritableComparable<?>,V extends Writable,X extends Writable>
          A RecordReader that can effect joins of RecordReaders sharing a common key type and partitioning.
 class InnerJoinRecordReader<K extends WritableComparable<?>>
          Full inner join.
 class JoinRecordReader<K extends WritableComparable<?>>
          Base class for Composite joins returning Tuples of arbitrary Writables.
 class MultiFilterRecordReader<K extends WritableComparable<?>,V extends Writable>
          Base class for Composite join returning values derived from multiple sources, but generally not tuples.
 class OuterJoinRecordReader<K extends WritableComparable<?>>
          Full outer join.
 class OverrideRecordReader<K extends WritableComparable<?>,V extends Writable>
          Prefer the "rightmost" data source for this key.
 class WrappedRecordReader<K extends WritableComparable<?>,U extends Writable>
          Proxy class for a RecordReader participating in the join framework.
 

Methods in org.apache.hadoop.mapreduce.lib.join that return RecordReader
 RecordReader<K,TupleWritable> CompositeInputFormat.createRecordReader(InputSplit split, TaskAttemptContext taskContext)
          Construct a CompositeRecordReader for the children of this InputFormat as defined in the init expression.
 



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