Module java.desktop
Package javax.swing

Class DefaultSingleSelectionModel

  • All Implemented Interfaces:
    Serializable, SingleSelectionModel

    public class DefaultSingleSelectionModel
    extends Object
    implements SingleSelectionModel, Serializable
    A generic implementation of SingleSelectionModel.

    Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans package. Please see XMLEncoder.

    See Also:
    Serialized Form
    • Field Detail

      • changeEvent

        protected transient ChangeEvent changeEvent
        Only one ModelChangeEvent is needed per model instance since the event's only (read-only) state is the source property. The source of events generated here is always "this".
      • listenerList

        protected EventListenerList listenerList
        The collection of registered listeners
    • Constructor Detail

      • DefaultSingleSelectionModel

        public DefaultSingleSelectionModel​()
    • Method Detail

      • isSelected

        public boolean isSelected​()
        Returns true if the selection model currently has a selected value.
        Specified by:
        isSelected in interface SingleSelectionModel
        true if a value is currently selected
      • fireStateChanged

        protected void fireStateChanged​()
        Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.
        See Also:
      • getListeners

        public <T extends EventListener> T[] getListeners​(Class<T> listenerType)
        Returns an array of all the objects currently registered as FooListeners upon this model. FooListeners are registered using the addFooListener method.

        You can specify the listenerType argument with a class literal, such as FooListener.class. For example, you can query a DefaultSingleSelectionModel instance m for its change listeners with the following code:

        ChangeListener[] cls = (ChangeListener[])(m.getListeners(ChangeListener.class));
        If no such listeners exist, this method returns an empty array.
        Type Parameters:
        T - the type of EventListener class being requested
        listenerType - the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener
        an array of all objects registered as FooListeners on this model, or an empty array if no such listeners have been added
        ClassCastException - if listenerType doesn't specify a class or interface that implements java.util.EventListener
        See Also: