Package io.datarouter.bytes.primitivelist.accumulator

Class DoubleAccumulator

java.lang.Object

io.datarouter.bytes.primitivelist.accumulator.DoubleAccumulator

All Implemented Interfaces:

Iterable<Double>

public class DoubleAccumulator
extends Object
implements Iterable<Double>

Accumulates a large quantity of primitive doubles. Stores them in paged primitive double arrays. Avoids a large resizing (usually doubling) of the backing array. Not thread safe. This could be promoted to datarouter, but we'd want to improve performance using bit shifting. It could also be enhanced into a PrimitiveDoubleList, but would need support for more operations, more tests.

Constructor Summary

Constructors

Constructor	Description
DoubleAccumulator()
DoubleAccumulator(int requestedPageSize)

Method Summary

Modifier and Type	Method	Description
void	add(double value)
void	addAll(List<Double> values)
void	addMulti(double[] values)
double	get(int index)
boolean	isEmpty()
Iterator<Double>	iterator()
double	set(int index, double value)
int	size()
DoubleStream	stream()
double[]	toPrimitiveArray()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

DoubleAccumulator

public DoubleAccumulator()

DoubleAccumulator

public DoubleAccumulator(int requestedPageSize)

Method Details

add

public void add(double value)

addMulti

public void addMulti(double[] values)

addAll

public void addAll(List<Double> values)

set

public double set(int index,
 double value)

isEmpty

public boolean isEmpty()

size

public int size()

get

public double get(int index)

toPrimitiveArray

public double[] toPrimitiveArray()

stream

public DoubleStream stream()

iterator

public Iterator<Double> iterator()

Specified by:

iterator in interface Iterable<Double>