Class LossRTIndicator

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.LossRTIndicator

All Implemented Interfaces:

ClockAware, PeriodCounter, Resettable, RTIndicator

public class LossRTIndicator
extends PeriodCounterRTIndicator

Tracks negative price changes (losses) between consecutive updates. Returns the loss amount (prevValue - newValue) as a positive number when the price decreases, and 0 otherwise. Maintains a period counter tracking consecutive loss periods. The counter can optionally reset when the price stays flat.

Constructor Summary

Constructors

Constructor	Description
LossRTIndicator()
LossRTIndicator(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 loss between consecutive values.
LossRTIndicator	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

LossRTIndicator

public LossRTIndicator()

LossRTIndicator

public LossRTIndicator(RTIndicator indicator)

Method Details

resetPeriodsOnSustain

public LossRTIndicator 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 loss between consecutive values. Returns the positive difference when the price decreases (and increments the period counter), or 0 when flat or rising. Period counter resets on gains, 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 loss amount (positive), or 0 if no loss

isResetPeriodsOnSustain

public boolean isResetPeriodsOnSustain()