Package org.eclipse.jface.action
Class AbstractAction
- java.lang.Object
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- org.eclipse.core.commands.common.EventManager
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- org.eclipse.jface.action.AbstractAction
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- All Implemented Interfaces:
IAction
- Direct Known Subclasses:
Action
public abstract class AbstractAction extends EventManager implements IAction
Some common functionality to share between implementations of
IAction
. This functionality deals with the property change event mechanism.Clients may neither instantiate nor extend this class.
- Since:
- 3.2
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Field Summary
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Fields inherited from interface org.eclipse.jface.action.IAction
AS_CHECK_BOX, AS_DROP_DOWN_MENU, AS_PUSH_BUTTON, AS_RADIO_BUTTON, AS_UNSPECIFIED, CHECKED, DESCRIPTION, ENABLED, HANDLED, IMAGE, RESULT, TEXT, TOOL_TIP_TEXT
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Constructor Summary
Constructors Constructor Description AbstractAction()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addPropertyChangeListener(IPropertyChangeListener listener)
Adds a property change listener to this action.protected void
firePropertyChange(String propertyName, Object oldValue, Object newValue)
Notifies any property change listeners that a property has changed.protected void
firePropertyChange(PropertyChangeEvent event)
Notifies any property change listeners that a property has changed.void
removePropertyChangeListener(IPropertyChangeListener listener)
Removes the given listener from this action.-
Methods inherited from class org.eclipse.core.commands.common.EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.jface.action.IAction
getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getToolTipText, isChecked, isEnabled, isHandled, run, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText
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Method Detail
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addPropertyChangeListener
public void addPropertyChangeListener(IPropertyChangeListener listener)
Description copied from interface:IAction
Adds a property change listener to this action. Has no effect if an identical listener is already registered.- Specified by:
addPropertyChangeListener
in interfaceIAction
- Parameters:
listener
- a property change listener
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firePropertyChange
protected final void firePropertyChange(PropertyChangeEvent event)
Notifies any property change listeners that a property has changed. Only listeners registered at the time this method is called are notified.- Parameters:
event
- the property change event- See Also:
IPropertyChangeListener.propertyChange(PropertyChangeEvent)
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firePropertyChange
protected final void firePropertyChange(String propertyName, Object oldValue, Object newValue)
Notifies any property change listeners that a property has changed. Only listeners registered at the time this method is called are notified. This method avoids creating an event object if there are no listeners registered, but callsfirePropertyChange(PropertyChangeEvent)
if there are.- Parameters:
propertyName
- the name of the property that has changedoldValue
- the old value of the property, ornull
if nonenewValue
- the new value of the property, ornull
if none- See Also:
IPropertyChangeListener.propertyChange(PropertyChangeEvent)
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removePropertyChangeListener
public void removePropertyChangeListener(IPropertyChangeListener listener)
Description copied from interface:IAction
Removes the given listener from this action. Has no effect if an identical listener is not registered.- Specified by:
removePropertyChangeListener
in interfaceIAction
- Parameters:
listener
- a property change listener
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