Module java.desktop
Package javax.swing

Class AbstractAction

    • Field Detail

      • enabled

        protected boolean enabled
        Specifies whether action is enabled; the default is true.
      • changeSupport

        protected SwingPropertyChangeSupport changeSupport
        If any PropertyChangeListeners have been registered, the changeSupport field describes them.
    • Constructor Detail

      • AbstractAction

        public AbstractAction​()
        Creates an Action.
      • AbstractAction

        public AbstractAction​(String name)
        Creates an Action with the specified name.
        name - the name (Action.NAME) for the action; a value of null is ignored
      • AbstractAction

        public AbstractAction​(String name,
                              Icon icon)
        Creates an Action with the specified name and small icon.
        name - the name (Action.NAME) for the action; a value of null is ignored
        icon - the small icon (Action.SMALL_ICON) for the action; a value of null is ignored
    • Method Detail

      • getValue

        public Object getValue​(String key)
        Gets the Object associated with the specified key.
        Specified by:
        getValue in interface Action
        key - a string containing the specified key
        the binding Object stored with this key; if there are no keys, it will return null
        See Also:
      • isEnabled

        public boolean isEnabled​()
        Returns true if the action is enabled.
        Specified by:
        isEnabled in interface Action
        true if the action is enabled, false otherwise
        See Also:
      • setEnabled

        public void setEnabled​(boolean newValue)
        Sets whether the Action is enabled. The default is true.
        Specified by:
        setEnabled in interface Action
        newValue - true to enable the action, false to disable it
        See Also:
      • getKeys

        public Object[] getKeys​()
        Returns an array of Objects which are keys for which values have been set for this AbstractAction, or null if no keys have values set.
        an array of key objects, or null if no keys have values set
      • firePropertyChange

        protected void firePropertyChange​(String propertyName,
                                          Object oldValue,
                                          Object newValue)
        Supports reporting bound property changes. This method can be called when a bound property has changed and it will send the appropriate PropertyChangeEvent to any registered PropertyChangeListeners.
        propertyName - the name of the property that has changed
        oldValue - the old value of the property
        newValue - the new value of the property
      • addPropertyChangeListener

        public void addPropertyChangeListener​(PropertyChangeListener listener)
        Adds a PropertyChangeListener to the listener list. The listener is registered for all properties.

        A PropertyChangeEvent will get fired in response to setting a bound property, e.g. setFont, setBackground, or setForeground. Note that if the current component is inheriting its foreground, background, or font from its container, then no event will be fired in response to a change in the inherited property.

        Specified by:
        addPropertyChangeListener in interface Action
        listener - The PropertyChangeListener to be added
        See Also:
      • getPropertyChangeListeners

        public PropertyChangeListener[] getPropertyChangeListeners​()
        Returns an array of all the PropertyChangeListeners added to this AbstractAction with addPropertyChangeListener().
        all of the PropertyChangeListeners added or an empty array if no listeners have been added
      • clone

        protected Object clone​()
                        throws CloneNotSupportedException
        Clones the abstract action. This gives the clone its own copy of the key/value list, which is not handled for you by Object.clone().
        clone in class Object
        a clone of this instance.
        CloneNotSupportedException - if the object's class does not support the Cloneable interface. Subclasses that override the clone method can also throw this exception to indicate that an instance cannot be cloned.
        See Also: