org.apache.hadoop.contrib.utils.join
Interface ResetableIterator

All Superinterfaces:

Iterator

All Known Implementing Classes:

ArrayListBackedIterator

public interface ResetableIterator
extends Iterator

This interface defines an iterator interface that will help the reducer class for re-grouping the values in the values iterator of the reduce method according the their source tags. Once the value re-grouped, the reducer can perform the cross product over the values in different groups.

Method Summary

void	add(Object item)
void	close()
void	reset()

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Method Detail

reset

void reset()

add

void add(Object item)

close

void close()
           throws IOException

Throws:

IOException