Package com.illumon.numerics.movingaverages

Class ByEma

java.lang.Object

com.illumon.numerics.movingaverages.ByEma

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ByEmaSimple

public abstract class ByEma
extends Object
implements Serializable

A DB aware EMA which can compute "by" emas without grouping and then ungrouping.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ByEma.BadDataBehavior
static class	ByEma.Key

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ByEma(ByEma.BadDataBehavior nullBehavior, ByEma.BadDataBehavior nanBehavior)

Method Summary

Modifier and Type	Method	Description
protected abstract AbstractMa	createEma(ByEma.Key key)
double	update(double value)
double	update(double value, Object... by)
double	update(long timestampNanos, double value, Object... by)
double	update(DBDateTime timestamp, double value)
double	update(DBDateTime timestamp, double value, Object... by)

Methods inherited from class java.lang.Object

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

Constructor Details

ByEma

protected ByEma(ByEma.BadDataBehavior nullBehavior,
 ByEma.BadDataBehavior nanBehavior)

Method Details

update

public double update(double value)

update

public double update(double value,
 Object... by)

update

public double update(DBDateTime timestamp,
 double value)

update

public double update(DBDateTime timestamp,
 double value,
 Object... by)

update

public double update(long timestampNanos,
 double value,
 Object... by)

createEma

protected abstract AbstractMa createEma(ByEma.Key key)