Package jmri

Interface AnalogIO

All Superinterfaces:

java.lang.Comparable<NamedBean>, NamedBean, PropertyChangeProvider

All Known Subinterfaces:

CurrentMeter, Meter, VariableLight, VoltageMeter

All Known Implementing Classes:

AbstractAnalogIO, AbstractVariableLight, AnymaDMX_UsbLight, DefaultMeter, DefaultMeter.DefaultCurrentMeter, DefaultMeter.DefaultVoltageMeter, SerialLight, SerialX10Light, SpecificInsteonLight, SpecificInsteonLight, SpecificLight, SpecificLight, SpecificX10Light, SpecificX10Light

public interface AnalogIO
extends NamedBean

Represent an analog I/O on the layout.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	AnalogIO.AbsoluteOrRelative	Is the value an absolute value or a relative value?

Nested classes/interfaces inherited from interface jmri.NamedBean

NamedBean.BadNameException, NamedBean.BadSystemNameException, NamedBean.BadUserNameException, NamedBean.DisplayOptions, NamedBean.DuplicateSystemNameException

Field Summary

Fields inherited from interface jmri.NamedBean

DISPLAY_NAME_FORMAT, INCONSISTENT, PROPERTY_STATE, QUOTED_NAME_FORMAT, UNKNOWN

Method Summary

Modifier and Type	Method	Description
AnalogIO.AbsoluteOrRelative	getAbsoluteOrRelative()	Is this AnalogIO absolute or relative?
double	getCommandedAnalogValue()	Query the commanded value.
default double	getKnownAnalogValue()	Query the known analog value.
double	getMax()	Get the maximum value of this AnalogIO.
double	getMin()	Get the minimum value of this AnalogIO.
double	getResolution()	Get the resolution of this AnalogIO.
double	getState(double v)	Provide generic access to internal state.
default boolean	isConsistentValue()	Show whether the analog value is stable.
default void	requestUpdateFromLayout()	Request an update from the layout soft/hardware.
void	setCommandedAnalogValue(double value)	Change the commanded value, which results in the relevant command(s) being sent to the hardware.
void	setState(double value)	Provide generic access to internal state.

Methods inherited from interface jmri.NamedBean

addPropertyChangeListener, addPropertyChangeListener, compareSystemNameSuffix, compareTo, describeState, dispose, getBeanType, getComment, getDisplayName, getDisplayName, getListenerRef, getListenerRefs, getNumPropertyChangeListeners, getProperty, getPropertyChangeListenersByReference, getPropertyKeys, getState, getSystemName, getUsageReport, getUserName, removeProperty, setComment, setProperty, setState, setUserName, toString, updateListenerRef, vetoableChange

Methods inherited from interface jmri.beans.PropertyChangeProvider

addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Method Detail

isConsistentValue

@CheckReturnValue
default boolean isConsistentValue()

Show whether the analog value is stable.

Returns:

true if the analog value is stable

setCommandedAnalogValue

void setCommandedAnalogValue(double value)
                      throws JmriException

Change the commanded value, which results in the relevant command(s) being sent to the hardware. The exception is thrown if there are problems communicating with the layout hardware.

The value must be a valid number, not a NaN or infinity number.

Parameters:

value - the desired analog value

Throws:

JmriException - general error when setting the value fails

java.lang.IllegalArgumentException - if the value is Double.NaN, Double.NEGATIVE_INFINITY or Double.POSITIVE_INFINITY

getCommandedAnalogValue

@CheckReturnValue
double getCommandedAnalogValue()

Query the commanded value. This is a bound parameter, so you can also register a listener to be informed of changes.

The result must be a valid number, not a NaN or infinity number.

Returns:

the analog value

getKnownAnalogValue

@CheckReturnValue
default double getKnownAnalogValue()

Query the known analog value. This is a bound parameter, so you can also register a listener to be informed of changes. A result is always returned; if no other feedback method is available, the commanded value will be used.

The result must be a valid number, not a NaN or infinity number.

Returns:

the known analog value

setState

@InvokeOnLayoutThread
void setState(double value)
       throws JmriException

Provide generic access to internal state.

This generally shouldn't be used by Java code; use the class-specific form instead (setCommandedAnalogValue). This is provided to make scripts access easier to read.

Parameters:

value - the analog value

Throws:

JmriException - general error when setting the state fails

getState

@CheckReturnValue
double getState(double v)

Provide generic access to internal state.

This generally shouldn't be used by Java code; use the class-specific form instead (getCommandedAnalogValue). This is provided to make scripts easier to read.

Parameters:

v - only used to select this method which returns an analog value. It's recommended to use 0.0 as the parameter.

Returns:

the state

getMin

@CheckReturnValue
double getMin()

Get the minimum value of this AnalogIO.

Returns:

minimum value.

getMax

@CheckReturnValue
double getMax()

Get the maximum value of this AnalogIO.

Returns:

maximum value.

getResolution

@CheckReturnValue
double getResolution()

Get the resolution of this AnalogIO.

Returns:

analog resolution.

getAbsoluteOrRelative

@CheckReturnValue
AnalogIO.AbsoluteOrRelative getAbsoluteOrRelative()

Is this AnalogIO absolute or relative?

Returns:

if absolute or relative.

requestUpdateFromLayout

default void requestUpdateFromLayout()

Request an update from the layout soft/hardware. May not even happen, and if it does it will happen later; listen for the result.