test

Class ValueTest.MovingAverage

java.lang.Object

test.ValueTest.MovingAverage

Enclosing class:

ValueTest

private class ValueTest.MovingAverage
extends java.lang.Object

Defines a class for incrementally updating values. Here, the problem is that ids should be based on instances rather than on static information. Therefore, we tag the attribute with

Since:

1.00

Version:

1.00

Author:

eichelberger

Field Summary

Fields

Modifier and Type	Field and Description
private int	count The number of updates.
private double	value The incrementally updated value.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MovingAverage()

Method Summary

Modifier and Type	Method and Description
int	getCount() Returns the number of updates.
double	getValue() Returns the current average.
double	update(double increment) Updates the currently stored average value by considering increment as an additional value.

Methods inherited from class java.lang.Object

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

Field Detail

value

private double value

The incrementally updated value. The annotation says that value changes should directly be accounted to the id of the current (call) context.

count

private int count

The number of updates. The annotation says that value changes should be accounted to the id of the current (call) context plus suffix "-count".

Constructor Detail

MovingAverage

private MovingAverage()

Method Detail

update

public double update(double increment)

Updates the currently stored average value by considering increment as an additional value.

Parameters:

increment - the additional value

Returns:

the new average

Since:

1.00

getCount

public int getCount()

Returns the number of updates.

Returns:

the number of updates

Since:

1.00

getValue

public double getValue()

Returns the current average.

Returns:

the current average

Since:

1.00