Class MinRTIndicator

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.MinRTIndicator

All Implemented Interfaces:

ClockAware, Resettable, RTIndicator

public class MinRTIndicator
extends AbstractDecorableIncrementalRTIndicator

Min value RT Indicator. With periods == 0 tracks the all-time minimum; with periods > 0 tracks the rolling minimum over the last periods inputs, evicting values that scroll out of the window.

Constructor Summary

Constructors

Constructor	Description
MinRTIndicator()
MinRTIndicator(int periods)
MinRTIndicator(int periods, RTIndicator indicator)
MinRTIndicator(RTIndicator indicator)

Method Summary

Modifier and Type	Method	Description
protected double	nextValue(double prevValue, double newValue)	Non-windowed mode (periods == 0): all-time running minimum.
void	reset()
protected double	tickValue(int tick, boolean init, boolean endPeriod, double newValue)	Windowed mode (periods > 0), called on every tick including the first: nextValue alone can't maintain the window because the framework routes the very first update through AbstractIncrementalRTIndicator.initValue(double) instead, so the window is seeded here.

Methods inherited from class AbstractDecorableIncrementalRTIndicator

getIndicator, setClockSupplier, update

Methods inherited from class AbstractIncrementalRTIndicator

getLastUpdateValue, getPeriodCycles, getPeriods, getPrevValue, initValue, isPeriodic, isReady, prevNextValue, setPeriods

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

MinRTIndicator

public MinRTIndicator()

MinRTIndicator

public MinRTIndicator(int periods)

MinRTIndicator

public MinRTIndicator(RTIndicator indicator)

MinRTIndicator

public MinRTIndicator(int periods,
 RTIndicator indicator)

Method Details

reset

public void reset()

Specified by:

reset in interface Resettable

Overrides:

reset in class AbstractDecorableIncrementalRTIndicator

tickValue

protected double tickValue(int tick,
 boolean init,
 boolean endPeriod,
 double newValue)

Windowed mode (periods > 0), called on every tick including the first: nextValue alone can't maintain the window because the framework routes the very first update through AbstractIncrementalRTIndicator.initValue(double) instead, so the window is seeded here.

Overrides:

tickValue in class AbstractIncrementalRTIndicator

Parameters:

tick - current tick index within the period (1-based)

init - true only on the very first update of this indicator

endPeriod - true when this tick completes the current period

newValue - the new input value

Returns:

the computed value for this tick

nextValue

protected double nextValue(double prevValue,
 double newValue)

Non-windowed mode (periods == 0): all-time running minimum.

Overrides:

nextValue in class AbstractDecorableIncrementalRTIndicator

Parameters:

prevValue - the previous indicator value (or last update value, depending on override)

newValue - the new input value

Returns:

the computed indicator value