fr.emn.reactiveinput
Class MissingDevice

java.lang.Object
  fr.emn.reactiveinput.AbstractDevice
      fr.emn.reactiveinput.MissingDevice

All Implemented Interfaces:

Device, Processor

public class MissingDevice

extends AbstractDevice

A device that was not found. Not executable.

Field Summary

Fields inherited from class fr.emn.reactiveinput.AbstractDevice

currIndex, ins, outs

Fields inherited from interface fr.emn.reactiveinput.Device

AUTO_PROPERTIES

Constructor Summary

MissingDevice(java.lang.String name)

Method Summary

In	addAbsentIn(java.lang.String name) Adds an inSlot.
Out	addAbsentOut(java.lang.String name) Adds an outSlot to the device.
java.lang.String	getError() Subclass this method to return the current error message (FAILED state).
void	init() Initializes device's output values.
boolean	isOpenable() Returns true if the device can be opened.
Processor	open(OpenContext context) Subclass this method if you want to specialize data processing, or if you want to perform some initializations before running the device.
void	update() Updates device's output values.

Methods inherited from class fr.emn.reactiveinput.AbstractDevice

addIn, addIn, addOut, close, copy, doDisable, doEnable, finalize, getIndex, getInfo, getIns, getName, getOuts, getProperties, hasExternalInput, hasExternalOutput, insertAt, insertAtEnd, insertBefore, isCopiable, isEnabled, setEnabled, setInfo, setInfo, setLastError, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

MissingDevice

public MissingDevice(java.lang.String name)

Method Detail

addAbsentIn

public final In addAbsentIn(java.lang.String name)

Adds an inSlot.

addAbsentOut

public final Out addAbsentOut(java.lang.String name)

Adds an outSlot to the device.

getError

public java.lang.String getError()

Description copied from class: AbstractDevice

Subclass this method to return the current error message (FAILED state). By default, returns the last error set by setLastError() method.

Specified by:

getError in interface Device

Overrides:

getError in class AbstractDevice

init

public void init()

Description copied from class: AbstractDevice

Initializes device's output values.

Subclass init() and update() methods if you want the device to process the data itself. Otherwise, subclass getProcessor() method to use extern processors. By default, this method calls update(). Subclass this method if you'd like to make a specific initialization routine.

Specified by:

init in interface Processor

Overrides:

init in class AbstractDevice

See Also:

Processor.init()

isOpenable

public boolean isOpenable()

Description copied from class: AbstractDevice

Returns true if the device can be opened.

By default, returns true if all obligatory input slots are valid. Subclass this method to add more conditions.

Specified by:

isOpenable in interface Device

Overrides:

isOpenable in class AbstractDevice

open

public Processor open(OpenContext context)

Description copied from class: AbstractDevice

Subclass this method if you want to specialize data processing, or if you want to perform some initializations before running the device.

By default, open() does nothing and returns the device itself as the Processor (or null if it is not openable): AbstractDevice implements both Device and Processor interfaces, so that you can add processing code directly into the device.

If you want to add specialization features, subclass this method to return a specific processor implementation depending on your device configuration.

Example :

public Processor getProcessor() { if (super.open() == null) return null; // Select the right processor if (in2.isValid()) { return new twoParamProcessor(in1, in2, out); else return new oneParamProcessor(in1, out); }

In this method, you may also perform all necessary pre-running initialization. If initialization fails, return null even if isOpenable() returns true.

In all cases, return null if isOpenable() returns false.

Specified by:

open in interface Device

Overrides:

open in class AbstractDevice

See Also:

Processor, Device.open()

update

public void update()

Description copied from class: AbstractDevice

Updates device's output values.

Subclass init() and update() methods if you want the device to process the data itself. Otherwise, subclass getProcessor() method to use extern processors.

Specified by:

update in interface Processor

Overrides:

update in class AbstractDevice

See Also:

Processor.update()