jmri
Interface NamedBean

All Known Subinterfaces:

Conditional, Light, Logix, Memory, Reporter, Route, Sensor, SignalHead, Turnout

All Known Implementing Classes:

AbstractLight, AbstractMemory, AbstractNamedBean, AbstractReporter, AbstractSensor, AbstractSignalHead, AbstractTurnout, AbstractVariableLight, AcelaLight, AcelaSensor, Block, DccSignalHead, DefaultConditional, DefaultLogix, DefaultMemory, DefaultRoute, DefaultSignalHead, DoubleTurnoutSignalHead, EasyDccTurnout, EliteXNetTurnout, LayoutBlock, LnLight, LnReporter, LnSensor, LnTurnout, LsDecSignalHead, NceSensor, NceTurnout, RpsSensor, SE8cSignalHead, SerialLight, SerialLight, SerialLight, SerialLight, SerialLight, SerialLight, SerialSensor, SerialSensor, SerialSensor, SerialSensor, SerialSensor, SerialSensor, SerialSignalHead, SerialTurnout, SerialTurnout, SerialTurnout, SerialTurnout, SerialTurnout, SerialTurnout, SerialTurnout, SpecificLight, SpecificLight, SprogTurnout, SRCPTurnout, TripleTurnoutSignalHead, VirtualSignalHead, XNetLight, XNetSensor, XNetTurnout, XpaTurnout

public interface NamedBean

Provides common services for classes representing objects on the layout, and allows a common form of access by their Managers.

Each object has a two names. The "user" name is entirely free form, and can be used for any purpose. The "system" name is provided by the system-specific implementations, and provides a unique mapping to the layout control system (e.g. LocoNet, NCE, etc) and address within that system.

This file is part of JMRI.

JMRI is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. See the "COPYING" file for a copy of this license.

JMRI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Author:

Bob Jacobsen Copyright (C) 2001, 2002, 2003, 2004

See Also:

AbstractManager, AbstractNamedBean

Field Summary

static int	INCONSISTENT Constant representing an "inconsistent" state, indicating that some inconsistency has been detected in the hardware readback.
static int	UNKNOWN Constant representing an "unknown" state, indicating that the object's state is not necessarily that of the actual layout hardware.

Method Summary

void	addPropertyChangeListener(PropertyChangeListener l) Request a call-back when a bound property changes.
void	dispose() Deactivate this object, so that it releases as many resources as possible and no longer effects others.
int	getNumPropertyChangeListeners() Number of current listeners.
int	getState() Provide generic access to internal state.
String	getSystemName() Get a system-specific name.
String	getUserName()
void	removePropertyChangeListener(PropertyChangeListener l) Remove a request for a call-back when a bound property changes.
void	setState(int s) Provide generic access to internal state.
void	setUserName(String s)

Field Detail

UNKNOWN

static final int UNKNOWN

Constant representing an "unknown" state, indicating that the object's state is not necessarily that of the actual layout hardware. This is the initial state of a newly created object before communication with the layout.

See Also:

Constant Field Values

INCONSISTENT

static final int INCONSISTENT

Constant representing an "inconsistent" state, indicating that some inconsistency has been detected in the hardware readback.

See Also:

Constant Field Values

Method Detail

getUserName

String getUserName()

setUserName

void setUserName(String s)

getSystemName

String getSystemName()

Get a system-specific name. This encodes the hardware addressing information.

addPropertyChangeListener

void addPropertyChangeListener(PropertyChangeListener l)

Request a call-back when a bound property changes. Bound properties are the known state, commanded state, user and system names.

removePropertyChangeListener

void removePropertyChangeListener(PropertyChangeListener l)

Remove a request for a call-back when a bound property changes.

getNumPropertyChangeListeners

int getNumPropertyChangeListeners()

Number of current listeners. May return -1 if the information is not available for some reason.

dispose

void dispose()

Deactivate this object, so that it releases as many resources as possible and no longer effects others.

For example, if this object has listeners, after a call to this method it should no longer notify those listeners. Any native or system-wide resources it maintains should be released, including threads, files, etc.

It is an error to invoke any other methods on this object once dispose() has been called. Note, however, that there is no guarantee about behavior in that case.

Afterwards, references to this object may still exist elsewhere, preventing its garbage collection. But it's formally dead, and shouldn't be keeping any other objects alive. Therefore, this method should null out any references to other objects that this NamedBean contained.

setState

void setState(int s)
              throws JmriException

Provide generic access to internal state.

This generally shouldn't be used by Java code; use the class-specific form instead. (E.g. setCommandedState in Turnout) This provided to make Jython script access easier to read.

Throws:

JmriException - general error when cant do the needed operation

getState

int getState()

Provide generic access to internal state.

This generally shouldn't be used by Java code; use the class-specific form instead. (E.g. getCommandedState in Turnout) This provided to make Jython script access easier to read.