org.apache.cassandra.hadoop
Class ColumnFamilyRecordReader

java.lang.Object
  org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>
      org.apache.cassandra.hadoop.ColumnFamilyRecordReader

All Implemented Interfaces:

java.io.Closeable

public class ColumnFamilyRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

Constructor Summary

ColumnFamilyRecordReader()

Method Summary

void	close()
java.nio.ByteBuffer	getCurrentKey()
java.util.SortedMap<java.nio.ByteBuffer,IColumn>	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnFamilyRecordReader

public ColumnFamilyRecordReader()

Method Detail

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

getCurrentKey

public java.nio.ByteBuffer getCurrentKey()

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

getCurrentValue

public java.util.SortedMap<java.nio.ByteBuffer,IColumn> getCurrentValue()

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

getProgress

public float getProgress()

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

initialize

public void initialize(org.apache.hadoop.mapreduce.InputSplit split,
                       org.apache.hadoop.mapreduce.TaskAttemptContext context)
                throws java.io.IOException

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

Throws:

java.io.IOException

nextKeyValue

public boolean nextKeyValue()
                     throws java.io.IOException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<java.nio.ByteBuffer,java.util.SortedMap<java.nio.ByteBuffer,IColumn>>

Throws:

java.io.IOException