Class AbstractSpinnerModel

java.lang.Object

javax.swing.AbstractSpinnerModel

All Implemented Interfaces:

Serializable, SpinnerModel

Direct Known Subclasses:

SpinnerDateModel, SpinnerListModel, SpinnerNumberModel

public abstract class AbstractSpinnerModel
extends Object
implements SpinnerModel, Serializable

This class provides the ChangeListener part of the SpinnerModel interface that should be suitable for most concrete SpinnerModel implementations. Subclasses must provide an implementation of the setValue, getValue, getNextValue and getPreviousValue methods.

Since:

1.4

See Also:

• JSpinner
• SpinnerModel
• SpinnerListModel
• SpinnerNumberModel
• SpinnerDateModel

Field Summary

Fields

Modifier and Type	Field	Description
protected EventListenerList	listenerList	The list of ChangeListeners for this model.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSpinnerModel()	Constructor for subclasses to call.

Method Summary

Modifier and Type	Method	Description
void	addChangeListener(ChangeListener l)	Adds a ChangeListener to the model's listener list.
protected void	fireStateChanged()	Run each ChangeListeners stateChanged() method.
ChangeListener[]	getChangeListeners()	Returns an array of all the ChangeListeners added to this AbstractSpinnerModel with addChangeListener().
<T extends EventListener> T[]	getListeners(Class<T> listenerType)	Return an array of all the listeners of the given type that were added to this model.
void	removeChangeListener(ChangeListener l)	Removes a ChangeListener from the model's listener list.

Methods declared in class Object

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

Modifier and Type	Method	Description
protected Object	clone()	Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. May cause performance issues, deadlocks and hangs.
final Class<? extends Object>	getClass()	Answers the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode()	Answers an integer hash code for the receiver.
final void	notify()	Causes one thread which is waiting on the receiver to be made ready to run.
final void	notifyAll()	Causes all threads which are waiting on the receiver to be made ready to run.
String	toString()	Answers a string containing a concise, human-readable description of the receiver.
final void	wait()	Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
final void	wait(long time)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
final void	wait(long time, int frac)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

Methods declared in interface SpinnerModel

getNextValue, getPreviousValue, getValue, setValue

Modifier and Type	Method	Description
Object	getNextValue()	Return the object in the sequence that comes after the object returned by getValue().
Object	getPreviousValue()	Return the object in the sequence that comes before the object returned by getValue().
Object	getValue()	The current element of the sequence.
void	setValue(Object value)	Changes current value of the model, typically this value is displayed by the editor part of a JSpinner.

Field Details

listenerList

protected EventListenerList listenerList

The list of ChangeListeners for this model. Subclasses may store their own listeners here.

Constructor Details

AbstractSpinnerModel

protected AbstractSpinnerModel()

Constructor for subclasses to call.

Method Details

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a ChangeListener to the model's listener list. The ChangeListeners must be notified when the models value changes.

Specified by:

addChangeListener in interface SpinnerModel

Parameters:

l - the ChangeListener to add

See Also:

• removeChangeListener(ChangeListener)
• SpinnerModel.addChangeListener(ChangeListener)

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a ChangeListener from the model's listener list.

Specified by:

removeChangeListener in interface SpinnerModel

Parameters:

l - the ChangeListener to remove

See Also:

• addChangeListener(ChangeListener)
• SpinnerModel.removeChangeListener(ChangeListener)

getChangeListeners

public ChangeListener[] getChangeListeners()

Returns an array of all the ChangeListeners added to this AbstractSpinnerModel with addChangeListener().

Returns:

all of the ChangeListeners added or an empty array if no listeners have been added

Since:

1.4

fireStateChanged

protected void fireStateChanged()

Run each ChangeListeners stateChanged() method.

See Also:

• SpinnerModel.setValue(Object)
• EventListenerList

getListeners

public <T extends EventListener> T[] getListeners(Class<T> listenerType)

Return an array of all the listeners of the given type that were added to this model. For example to find all of the ChangeListeners added to this model:

myAbstractSpinnerModel.getListeners(ChangeListener.class);

Type Parameters:

T - the type of requested listeners

Parameters:

listenerType - the type of listeners to return, e.g. ChangeListener.class

Returns:

all of the objects receiving listenerType notifications from this model