Class GainRTIndicator

java.lang.Object

com.wualabs.qtsurfer.engine.indicators.core.AbstractRTIndicator

com.wualabs.qtsurfer.engine.indicators.core.AbstractIncrementalRTIndicator

com.wualabs.qtsurfer.engine.indicators.core.AbstractDecorableIncrementalRTIndicator

com.wualabs.qtsurfer.engine.indicators.helpers.PeriodCounterRTIndicator

com.wualabs.qtsurfer.engine.indicators.helpers.GainRTIndicator

All Implemented Interfaces:

ClockAware, PeriodCounter, Resettable, RTIndicator

public class GainRTIndicator
extends PeriodCounterRTIndicator

Tracks positive price changes (gains) between consecutive updates. Returns the gain amount (newValue - prevValue) when the price increases, and 0 otherwise. Maintains a period counter tracking consecutive gain periods. The counter can optionally reset when the price stays flat (configurable via resetPeriodsOnSustain).

Constructor Summary

Constructors

Constructor	Description
GainRTIndicator()
GainRTIndicator(RTIndicator indicator)

Method Summary

Modifier and Type	Method	Description
protected double	getPrevValue()
protected double	initValue(double initValue)	Non periodic init value
boolean	isResetPeriodsOnSustain()
protected double	nextValue(double prevValue, double newValue)	Computes the gain between consecutive values.
GainRTIndicator	resetPeriodsOnSustain(boolean resetPeriodsOnSustain)

Methods inherited from class PeriodCounterRTIndicator

getPeriodCount, incPeriods, resetPeriods

Methods inherited from class AbstractDecorableIncrementalRTIndicator

getIndicator, reset, setClockSupplier, update

Methods inherited from class AbstractIncrementalRTIndicator

getLastUpdateValue, getPeriodCycles, getPeriods, isPeriodic, isReady, prevNextValue, setPeriods, tickValue

Methods inherited from class AbstractRTIndicator

equals, getDisplayHint, getMeta, getValue, hashCode, hide, isPoison, setValue, toString, toString, withDisplayHint, withMeta

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface RTIndicator

getId, isHidden, ro, update, update

Constructor Details

GainRTIndicator

public GainRTIndicator()

GainRTIndicator

public GainRTIndicator(RTIndicator indicator)

Method Details

resetPeriodsOnSustain

public GainRTIndicator resetPeriodsOnSustain(boolean resetPeriodsOnSustain)

initValue

protected double initValue(double initValue)

Description copied from class: AbstractIncrementalRTIndicator

Non periodic init value

Overrides:

initValue in class AbstractIncrementalRTIndicator

Parameters:

initValue -

Returns:

getPrevValue

protected double getPrevValue()

Overrides:

getPrevValue in class AbstractIncrementalRTIndicator

nextValue

protected double nextValue(double prevValue,
 double newValue)

Computes the gain between consecutive values. Returns the positive difference when the price increases (and increments the period counter), or 0 when flat or declining. Period counter resets on decline, and optionally on sustained (flat) values.

Overrides:

nextValue in class PeriodCounterRTIndicator

Parameters:

prevValue - the previous raw input value

newValue - the current raw input value

Returns:

the gain amount, or 0 if no gain

isResetPeriodsOnSustain

public boolean isResetPeriodsOnSustain()