com.google.cloud.bigquery.connector.common

Class IteratorMultiplexer<T>

java.lang.Object

com.google.cloud.bigquery.connector.common.IteratorMultiplexer<T>

Type Parameters:

T - Type of iterable object.

All Implemented Interfaces:

AutoCloseable

public class IteratorMultiplexer<T>
extends Object
implements AutoCloseable

Manages reading ahead from an iterator and dividing it across multiple iterators that can be read in a round-robin fashion.

Useful to parallelizing work from an iterator where order must still be maintained.

Constructor Summary

Constructors

Constructor and Description
IteratorMultiplexer(Iterator<T> iterator, int splits) Construct a new instance.

Method Summary

Modifier and Type	Method and Description
void	close()
Iterator<T>	getSplit(int split)

Methods inherited from class java.lang.Object

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

Constructor Detail

IteratorMultiplexer

public IteratorMultiplexer(Iterator<T> iterator,
                           int splits)

Construct a new instance.

Parameters:

iterator - The Iterator to read from.

splits - The number of output iterators that will read from iterator.

Method Detail

close

public void close()

Specified by:

close in interface AutoCloseable

getSplit

public Iterator<T> getSplit(int split)