org.apache.flink.util

Class NumberSequenceIterator

java.lang.Object

org.apache.flink.util.SplittableIterator<Long>

org.apache.flink.util.NumberSequenceIterator

All Implemented Interfaces:

Serializable, Iterator<Long>

public class NumberSequenceIterator
extends SplittableIterator<Long>

The NumberSequenceIterator is an iterator that returns a sequence of numbers (as Long)s. The iterator is splittable (as defined by SplittableIterator, i.e., it can be divided into multiple iterators that each return a subsequence of the number sequence.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NumberSequenceIterator(long from, long to) Internal constructor to allow for empty iterators.

Method Summary

Methods

Modifier and Type	Method and Description
long	getCurrent()
int	getMaximumNumberOfSplits()
long	getTo()
boolean	hasNext()
Long	next()
void	remove()
NumberSequenceIterator[]	split(int numPartitions)

Methods inherited from class org.apache.flink.util.SplittableIterator

getSplit

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberSequenceIterator

public NumberSequenceIterator(long from,
                      long to)

Internal constructor to allow for empty iterators.

Parameters:

from - The first number returned by the iterator.

to - The last number returned by the iterator.

Method Detail

getCurrent

public long getCurrent()

getTo

public long getTo()

hasNext

public boolean hasNext()

next

public Long next()

remove

public void remove()

split

public NumberSequenceIterator[] split(int numPartitions)

Specified by:

split in class SplittableIterator<Long>

getMaximumNumberOfSplits

public int getMaximumNumberOfSplits()

Specified by:

getMaximumNumberOfSplits in class SplittableIterator<Long>