Package jmri

Class NamedBeanHandleManager

java.lang.Object

jmri.beans.PropertyChangeSupport

jmri.beans.VetoableChangeSupport

jmri.managers.AbstractManager<NamedBean>

jmri.NamedBeanHandleManager

All Implemented Interfaces:

PropertyChangeListener, VetoableChangeListener, EventListener, PropertyChangeFirer, PropertyChangeProvider, SilenceablePropertyChangeProvider, VetoableChangeFirer, VetoableChangeProvider, InstanceManagerAutoDefault, Manager<NamedBean>

public class NamedBeanHandleManager
extends AbstractManager<NamedBean>
implements InstanceManagerAutoDefault

Instance for controlling the issuing of NamedBeanHandles. The NamedBeanHandleManager, deals with controlling and updating NamedBean objects across JMRI. When a piece of code requires persistent access to a bean, it should use a NamedBeanHandle. The NamedBeanHandle stores not only the bean that has been requested but also the named that was used to request it (either User or System Name).

This Manager will only issue out one NamedBeanHandle per Bean/Name request. The Manager also deals with updates and changes to the names of NamedBean objects, along with moving usernames between different beans.

If a beans username is changed by the user, then the name will be updated in the NamedBeanHandle. If a username is moved from one bean to another, then the bean reference will be updated and the propertyChangeListener attached to that bean will also be moved, so long as the correct method of adding the listener has been used.

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.

See Also:

• NamedBean
• NamedBeanHandle

Nested Class Summary

Nested classes/interfaces inherited from interface jmri.Manager

Manager.ManagerDataEvent<E extends NamedBean>, Manager.ManagerDataListener<E extends NamedBean>, Manager.NameValidity

Field Summary

Fields

Modifier and Type	Field	Description
(package private) ArrayList<NamedBeanHandle>	namedBeanHandles

Fields inherited from class jmri.managers.AbstractManager

_beans, _tsys, _tuser, memo, silenceableProperties, silencedProperties

Fields inherited from class jmri.beans.VetoableChangeSupport

vetoableChangeSupport

Fields inherited from class jmri.beans.PropertyChangeSupport

propertyChangeSupport

Fields inherited from interface jmri.Manager

ANALOGIOS, AUDIO, BLOCKBOSS, BLOCKS, CONDITIONALS, CTCDATA, ENTRYEXIT, IDTAGS, LAYOUTBLOCKS, LIGHTS, LOGIXNG_ANALOG_ACTIONS, LOGIXNG_ANALOG_EXPRESSIONS, LOGIXNG_CONDITIONALNGS, LOGIXNG_DIGITAL_ACTIONS, LOGIXNG_DIGITAL_BOOLEAN_ACTIONS, LOGIXNG_DIGITAL_EXPRESSIONS, LOGIXNG_GLOBAL_VARIABLES, LOGIXNG_MODULES, LOGIXNG_STRING_ACTIONS, LOGIXNG_STRING_EXPRESSIONS, LOGIXNG_TABLES, LOGIXNGS, LOGIXS, MEMORIES, METERFRAMES, METERS, OBLOCKS, PANELFILES, PROPERTY_BEANS, PROPERTY_CAN_DELETE, PROPERTY_DISPLAY_LIST_NAME, PROPERTY_DO_DELETE, PROPERTY_DO_NOT_DELETE, PROPERTY_LENGTH, REPORTERS, ROUTES, SECTIONS, SENSORGROUPS, SENSORS, SIGNALGROUPS, SIGNALHEADS, SIGNALMASTLOGICS, SIGNALMASTS, STRINGIOS, TIMEBASE, TRANSITS, TURNOUTS, WARRANTS

Constructor Summary

Constructors

Constructor	Description
NamedBeanHandleManager()

Method Summary

Modifier and Type	Method	Description
void	deregister(NamedBean n)	Forget a NamedBean Object created outside the manager.
void	dispose()	Free resources when no longer used.
String	getBeanTypeHandled(boolean plural)	Get the user-readable name of the type of NamedBean handled by this manager.
Class<NamedBean>	getNamedBeanClass()	Get the class of NamedBean supported by this Manager.
<T extends NamedBean> NamedBeanHandle<T>	getNamedBeanHandle(String name, T bean)
int	getXMLOrder()	Determine the order that types should be written when storing panel files.
<T extends NamedBean> boolean	inUse(String name, T bean)
String	makeSystemName(String s)	Create a SystemName by prepending the system name prefix to the name if not already present.
<T extends NamedBean> void	moveBean(T oldBean, T newBean, String name)	Effectively move a name from one bean to another.
<T extends NamedBean> NamedBeanHandle<T>	newNamedBeanHandle(String name, T bean, Class<T> type)
void	register(NamedBean n)	Remember a NamedBean Object created outside the manager.
protected void	registerSelf()	Don't want to store this information
<T extends NamedBean> void	renameBean(String oldName, String newName, T bean)	Update the name of a bean in its references.
char	typeLetter()
void	updateBeanFromSystemToUser(NamedBean bean)
void	updateBeanFromUserToSystem(NamedBean bean)

Methods inherited from class jmri.managers.AbstractManager

addDataListener, checkNumeric, createSystemName, deleteBean, fireDataListenersAdded, fireDataListenersRemoved, fireVetoableChange, getAutoSystemName, getBySystemName, getBySystemName, getByUserName, getKnownBeanProperties, getMemo, getNamedBean, getNamedBeanSet, getObjectCount, getOuterBean, getSystemPrefix, handleUserNameUniqueness, makeSystemName, propertyChange, registerUserName, removeDataListener, setDataListenerMute, setPropertyChangesSilenced, updateAutoNumber, validSystemNameFormat, vetoableChange

Methods inherited from class jmri.beans.VetoableChangeSupport

addVetoableChangeListener, addVetoableChangeListener, fireVetoableChange, fireVetoableChange, fireVetoableChange, getVetoableChangeListeners, getVetoableChangeListeners, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from class jmri.beans.PropertyChangeSupport

addPropertyChangeListener, addPropertyChangeListener, fireIndexedPropertyChange, fireIndexedPropertyChange, fireIndexedPropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeListeners, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface jmri.Manager

getBeanTypeHandled, getEntryToolTip, getSubSystemNamePrefix, getSystemNamePrefix, isValidSystemNameFormat, makeSystemName, validateBadCharsInSystemNameFormat, validateIntegerSystemNameFormat, validateNmraAccessorySystemNameFormat, validateSystemNameFormat, validateSystemNameFormat, validateSystemNameFormatOnlyNumeric, validateSystemNamePrefix, validateTrimmedMin1NumberSystemNameFormat, validateTrimmedSystemNameFormat, validateUppercaseTrimmedSystemNameFormat

Methods inherited from interface jmri.beans.PropertyChangeProvider

addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from interface jmri.beans.VetoableChangeProvider

addVetoableChangeListener, addVetoableChangeListener, getVetoableChangeListeners, getVetoableChangeListeners, removeVetoableChangeListener, removeVetoableChangeListener

Field Details

namedBeanHandles

ArrayList<NamedBeanHandle> namedBeanHandles

Constructor Details

NamedBeanHandleManager

public NamedBeanHandleManager()

Method Details

getNamedBeanHandle

@Nonnull
@CheckReturnValue
public <T extends NamedBean> NamedBeanHandle<T> getNamedBeanHandle(@Nonnull
 String name,
 @Nonnull
 T bean)

renameBean

public <T extends NamedBean> void renameBean(@Nonnull
 String oldName,
 @Nonnull
 String newName,
 @Nonnull
 T bean)

Update the name of a bean in its references.

Note this does not change the name on the bean, it only changes the references.

Type Parameters:

T - the type of the bean

Parameters:

oldName - the name changing from

newName - the name changing to

bean - the bean being renamed

moveBean

public <T extends NamedBean> void moveBean(@Nonnull
 T oldBean,
 @Nonnull
 T newBean,
 @Nonnull
 String name)

Effectively move a name from one bean to another.

Note only updates the references to point to the new bean; does not move the name provided from one bean to another.

Type Parameters:

T - the bean type

Parameters:

oldBean - bean loosing the name

name - name being moved

newBean - bean gaining the name

updateBeanFromUserToSystem

public void updateBeanFromUserToSystem(@Nonnull
 NamedBean bean)

updateBeanFromSystemToUser

public void updateBeanFromSystemToUser(@Nonnull
 NamedBean bean)
                                throws JmriException

Throws:

JmriException

inUse

@CheckReturnValue
public <T extends NamedBean> boolean inUse(@Nonnull
 String name,
 @Nonnull
 T bean)

newNamedBeanHandle

@CheckForNull
@CheckReturnValue
public <T extends NamedBean> NamedBeanHandle<T> newNamedBeanHandle(@Nonnull
 String name,
 @Nonnull
 T bean,
 @Nonnull
 Class<T> type)

dispose

public void dispose()

Description copied from class: AbstractManager

Free resources when no longer used. Specifically, remove all references to and from this object, so it can be garbage-collected.

Specified by:

dispose in interface Manager<NamedBean>

Overrides:

dispose in class AbstractManager<NamedBean>

registerSelf

protected void registerSelf()

Don't want to store this information

Overrides:

registerSelf in class AbstractManager<NamedBean>

typeLetter

@CheckReturnValue
public char typeLetter()

Specified by:

typeLetter in interface Manager<NamedBean>

Returns:

The type letter for a specific implementation

makeSystemName

@Nonnull
@CheckReturnValue
public String makeSystemName(@Nonnull
 String s)

Description copied from interface: Manager

Create a SystemName by prepending the system name prefix to the name if not already present.

Note: implementations must call Manager.validateSystemNameFormat(java.lang.String, java.util.Locale) to ensure the returned name is valid.

Specified by:

makeSystemName in interface Manager<NamedBean>

Parameters:

s - the item to make the system name for

Returns:

A system name from a user input, typically a number.

register

public void register(@Nonnull
 NamedBean n)

Description copied from class: AbstractManager

Remember a NamedBean Object created outside the manager.

The non-system-specific SignalHeadManagers use this method extensively.

Specified by:

register in interface Manager<NamedBean>

Overrides:

register in class AbstractManager<NamedBean>

Parameters:

n - the bean

deregister

public void deregister(@Nonnull
 NamedBean n)

Description copied from class: AbstractManager

Forget a NamedBean Object created outside the manager.

The non-system-specific RouteManager uses this method.

Specified by:

deregister in interface Manager<NamedBean>

Overrides:

deregister in class AbstractManager<NamedBean>

Parameters:

n - the bean

getXMLOrder

@CheckReturnValue
public int getXMLOrder()

Description copied from interface: Manager

Determine the order that types should be written when storing panel files. Uses one of the constants defined in this class.

Yes, that's an overly-centralized methodology, but it works for now.

Specified by:

getXMLOrder in interface Manager<NamedBean>

Returns:

write order for this Manager; larger is later.

getBeanTypeHandled

@Nonnull
@CheckReturnValue
public String getBeanTypeHandled(boolean plural)

Description copied from interface: Manager

Get the user-readable name of the type of NamedBean handled by this manager.

For instance, in the code where we are dealing with just a bean and a message that needs to be passed to the user or in a log.

Specified by:

getBeanTypeHandled in interface Manager<NamedBean>

Parameters:

plural - true to return plural form of the type; false to return singular form

Returns:

a string of the bean type that the manager handles, eg Turnout, Sensor etc

getNamedBeanClass

public Class<NamedBean> getNamedBeanClass()

Get the class of NamedBean supported by this Manager. This should be the generic class used in the Manager's class declaration.

Specified by:

getNamedBeanClass in interface Manager<NamedBean>

Returns:

the class supported by this Manager.