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:

Field Summary

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

Constructor Summary

AbstractSpinnerModel()
Modifier Constructor Description
protected
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 java.lang.Object

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

Methods declared in interface javax.swing.SpinnerModel

getNextValue, getPreviousValue, getValue, setValue

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

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:

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:

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

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https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/javax/swing/AbstractSpinnerModel.html