Package org.apache.accumulo.hadoopImpl.mapreduce

Class BatchInputSplit

java.lang.Object

org.apache.hadoop.mapreduce.InputSplit

org.apache.accumulo.hadoopImpl.mapreduce.RangeInputSplit

org.apache.accumulo.hadoopImpl.mapreduce.BatchInputSplit

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Direct Known Subclasses:

BatchInputSplit

public class BatchInputSplit
extends RangeInputSplit

The Class BatchInputSplit. Encapsulates a set of Accumulo ranges on a single tablet for use in Map Reduce jobs. Can contain several Ranges per split.

Constructor Summary

Constructors

Constructor	Description
BatchInputSplit()
BatchInputSplit(String table, TableId tableId, Collection<Range> ranges, String[] locations)
BatchInputSplit(BatchInputSplit split)

Method Summary

Modifier and Type	Method	Description
long	getLength()	This implementation of length is only an estimate, it does not provide exact values.
float	getProgress(Key currentKey)	Save progress on each call to this function, implied by value of currentKey, and return average ranges in the split
Range	getRange()
Collection<Range>	getRanges()
Boolean	isIsolatedScan()
Boolean	isOffline()
void	readFields(DataInput in)
void	setIsolatedScan(Boolean isolatedScan)
void	setOffline(Boolean offline)
void	setRange(Range range)
void	setRanges(Collection<Range> ranges)
void	setUsesLocalIterators(Boolean localIterators)
String	toString()
Boolean	usesLocalIterators()
void	write(DataOutput out)

Methods inherited from class org.apache.accumulo.hadoopImpl.mapreduce.RangeInputSplit

getExecutionHints, getFetchedColumns, getIterators, getLocations, getProgress, getSamplerConfiguration, getTableId, getTableName, setExecutionHints, setFetchedColumns, setFetchedColumns, setIterators, setLocations, setSamplerConfiguration, setTableId, setTableName

Methods inherited from class org.apache.hadoop.mapreduce.InputSplit

getLocationInfo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

BatchInputSplit

public BatchInputSplit()

BatchInputSplit

public BatchInputSplit(BatchInputSplit split)
                throws IOException

Throws:

IOException

BatchInputSplit

public BatchInputSplit(String table,
 TableId tableId,
 Collection<Range> ranges,
 String[] locations)

Method Details

getProgress

public float getProgress(Key currentKey)

Save progress on each call to this function, implied by value of currentKey, and return average ranges in the split

Overrides:

getProgress in class RangeInputSplit

getLength

public long getLength()
               throws IOException

This implementation of length is only an estimate, it does not provide exact values. Do not have your code rely on this return value.

Overrides:

getLength in class RangeInputSplit

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Overrides:

readFields in class RangeInputSplit

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Overrides:

write in class RangeInputSplit

Throws:

IOException

toString

public String toString()

Overrides:

toString in class RangeInputSplit

setRanges

public void setRanges(Collection<Range> ranges)

getRanges

public Collection<Range> getRanges()

getRange

public Range getRange()

Overrides:

getRange in class RangeInputSplit

setRange

public void setRange(Range range)

Overrides:

setRange in class RangeInputSplit

isIsolatedScan

public Boolean isIsolatedScan()

Overrides:

isIsolatedScan in class RangeInputSplit

setIsolatedScan

public void setIsolatedScan(Boolean isolatedScan)

Overrides:

setIsolatedScan in class RangeInputSplit

isOffline

public Boolean isOffline()

Overrides:

isOffline in class RangeInputSplit

setOffline

public void setOffline(Boolean offline)

Overrides:

setOffline in class RangeInputSplit

usesLocalIterators

public Boolean usesLocalIterators()

Overrides:

usesLocalIterators in class RangeInputSplit

setUsesLocalIterators

public void setUsesLocalIterators(Boolean localIterators)

Overrides:

setUsesLocalIterators in class RangeInputSplit