javax.swing: abstract public class: AbstractSpinnerModel

javax.swing
abstract public class: AbstractSpinnerModel [javadoc | source]

java.lang.Object
   javax.swing.AbstractSpinnerModel

All Implemented Interfaces:
SpinnerModel, Serializable

Direct Known Subclasses:
SpinnerNumberModel, SpinnerDateModel, SpinnerListModel

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.

Also see:

author: Hans - Muller

since: 1.4 -

Field Summary
protected EventListenerList	listenerList	The list of ChangeListeners for this model. Subclasses may store their own listeners here.

Method from javax.swing.AbstractSpinnerModel Summary:
addChangeListener, fireStateChanged, getChangeListeners, getListeners, removeChangeListener

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from javax.swing.AbstractSpinnerModel Detail:
public void addChangeListener(ChangeListener l) { listenerList.add(ChangeListener.class, l); } Adds a ChangeListener to the model's listener list. The ChangeListeners must be notified when the models value changes.
protected void fireStateChanged() { Object[] listeners = listenerList.getListenerList(); for (int i = listeners.length - 2; i >= 0; i -=2 ) { if (listeners[i] == ChangeListener.class) { if (changeEvent == null) { changeEvent = new ChangeEvent(this); } ((ChangeListener)listeners[i+1]).stateChanged(changeEvent); } } } Run each ChangeListeners stateChanged() method.
public ChangeListener[] getChangeListeners() { return (ChangeListener[])listenerList.getListeners( ChangeListener.class); } Returns an array of all the `ChangeListener`s added to this AbstractSpinnerModel with addChangeListener().
public T[] getListeners(Class listenerType) { return listenerList.getListeners(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);
public void removeChangeListener(ChangeListener l) { listenerList.remove(ChangeListener.class, l); } Removes a ChangeListener from the model's listener list.

Method from javax.swing.AbstractSpinnerModel Detail:

 public  void addChangeListener(ChangeListener l) {
                                      
        listenerList.add(ChangeListener.class, l);
}

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

 protected  void fireStateChanged() {
        Object[] listeners = listenerList.getListenerList();
        for (int i = listeners.length - 2; i  >= 0; i -=2 ) {
            if (listeners[i] == ChangeListener.class) {
                if (changeEvent == null) {
                    changeEvent = new ChangeEvent(this);
                }
                ((ChangeListener)listeners[i+1]).stateChanged(changeEvent);
            }
        }
}

Run each ChangeListeners stateChanged() method.

 public ChangeListener[] getChangeListeners() {
        return (ChangeListener[])listenerList.getListeners(
                ChangeListener.class);
}

ChangeListener

 public T[] getListeners(Class listenerType) {
        return listenerList.getListeners(listenerType);
}

myAbstractSpinnerModel.getListeners(ChangeListener.class);

 public  void removeChangeListener(ChangeListener l) {
        listenerList.remove(ChangeListener.class, l);
}

Removes a ChangeListener from the model's listener list.