org.apache.hadoop.mapred.join

Class ArrayListBackedIterator<X extends org.apache.hadoop.io.Writable>

java.lang.Object

org.apache.hadoop.mapreduce.lib.join.ArrayListBackedIterator<X>

org.apache.hadoop.mapred.join.ArrayListBackedIterator<X>

All Implemented Interfaces:

ResetableIterator<X>

@InterfaceAudience.Public
@InterfaceStability.Stable
public class ArrayListBackedIterator<X extends org.apache.hadoop.io.Writable>
extends ArrayListBackedIterator<X>
implements ResetableIterator<X>

This class provides an implementation of ResetableIterator. The implementation uses an ArrayList to store elements added to it, replaying them as requested. Prefer StreamBackedIterator.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.mapred.join.ResetableIterator

ResetableIterator.EMPTY<U extends org.apache.hadoop.io.Writable>

Constructor Summary

Constructors

Constructor and Description
ArrayListBackedIterator()
ArrayListBackedIterator(ArrayList<X> data)

Method Summary

Methods inherited from class org.apache.hadoop.mapreduce.lib.join.ArrayListBackedIterator

add, clear, close, hasNext, next, replay, reset

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.mapreduce.lib.join.ResetableIterator

add, clear, close, hasNext, next, replay, reset

Constructor Detail

ArrayListBackedIterator

public ArrayListBackedIterator()

ArrayListBackedIterator

public ArrayListBackedIterator(ArrayList<X> data)