org.apache.hadoop.util
Class CyclicIteration<K,V>

java.lang.Object
  org.apache.hadoop.util.CyclicIteration<K,V>

All Implemented Interfaces:

Iterable<Map.Entry<K,V>>

public class CyclicIteration<K,V>
extends Object
implements Iterable<Map.Entry<K,V>>

Provide an cyclic Iterator for a NavigableMap. The Iterator navigates the entries of the map according to the map's ordering. If the Iterator hits the last entry of the map, it will then continue from the first entry.

Constructor Summary

CyclicIteration(NavigableMap<K,V> navigablemap, K startingkey)
Construct an Iterable object, so that an Iterator can be created for iterating the given NavigableMap.

Method Summary

Iterator<Map.Entry<K,V>>

iterator()

Methods inherited from class java.lang.Object

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

Constructor Detail

CyclicIteration

public CyclicIteration(NavigableMap<K,V> navigablemap,
                       K startingkey)

Construct an Iterable object, so that an Iterator can be created for iterating the given NavigableMap. The iteration begins from the starting key exclusively.

Method Detail

iterator

public Iterator<Map.Entry<K,V>> iterator()

Specified by:

iterator in interface Iterable<Map.Entry<K,V>>