org.apache.crunch.impl

Class SingleUseIterable<T>

java.lang.Object

org.apache.crunch.impl.SingleUseIterable<T>

All Implemented Interfaces:

Iterable<T>

public class SingleUseIterable<T>
extends Object
implements Iterable<T>

Wrapper around a Reducer's input Iterable. Ensures that the iterator() method is not called more than once.

Constructor Summary

Constructors

Constructor and Description
SingleUseIterable(Iterable<T> toWrap) Instantiate around an Iterable that may only be used once.

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<T>	iterator()

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleUseIterable

public SingleUseIterable(Iterable<T> toWrap)

Instantiate around an Iterable that may only be used once.

Parameters:

toWrap - iterable to wrap

Method Detail

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>