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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » java.awt.event 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.awt.AWTEvent
   java.awt.event.InvocationEvent

All known Subclasses:   sun.awt.PeerEvent,
InvocationEvent
public class InvocationEvent extends AWTEvent implements ActiveEvent(Code)
An event which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread. This class can be used as a implementation of ActiveEvent rather than declaring a new class and defining dispatch().

Instances of this class are placed on the EventQueue by calls to invokeLater and invokeAndWait. Client code can use this fact to write replacement functions for invokeLater and invokeAndWait without writing special-case code in any AWTEventListener objects.
author:
   Fred Ecks
author:
   David Mendenhall
version:
   1.16, 08/19/02
See Also:   java.awt.ActiveEvent
See Also:   java.awt.EventQueue.invokeLater
See Also:   java.awt.EventQueue.invokeAndWait
See Also:   AWTEventListener
since:
   1.2



Field Summary
final public static  intINVOCATION_DEFAULT
     The default id for all InvocationEvents.
final public static  intINVOCATION_FIRST
     Marks the first integer id for the range of invocation event ids.
final public static  intINVOCATION_LAST
     Marks the last integer id for the range of invocation event ids.
protected  booleancatchExceptions
     Set to true if dispatch() catches Exception and stores it in the exception instance variable.
protected  Objectnotifier
     The (potentially null) Object whose notifyAll() method will be called immediately after the Runnable.run() method returns.
protected  Runnablerunnable
     The Runnable whose run() method will be called.

Constructor Summary
public  InvocationEvent(Object source, Runnable runnable)
     Constructs an InvocationEvent with the specified source which will execute the runnable's run() method when dispatched.
public  InvocationEvent(Object source, Runnable runnable, Object notifier, boolean catchExceptions)
     Constructs an InvocationEvent with the specified source which will execute the runnable's run() method when dispatched.
protected  InvocationEvent(Object source, int id, Runnable runnable, Object notifier, boolean catchExceptions)
     Constructs an InvocationEvent with the specified source and ID which will execute the runnable's run() method when dispatched.

Method Summary
public  voiddispatch()
     Executes the Runnable's run() method and notifies the notifier (if any) when run() returns.
public  ExceptiongetException()
     Returns any Exception caught while executing the Runnable's run() method.
public  longgetWhen()
    
public  StringparamString()
     Returns a parameter string identifying this event.

Field Detail
INVOCATION_DEFAULT
final public static int INVOCATION_DEFAULT(Code)
The default id for all InvocationEvents.



INVOCATION_FIRST
final public static int INVOCATION_FIRST(Code)
Marks the first integer id for the range of invocation event ids.



INVOCATION_LAST
final public static int INVOCATION_LAST(Code)
Marks the last integer id for the range of invocation event ids.



catchExceptions
protected boolean catchExceptions(Code)
Set to true if dispatch() catches Exception and stores it in the exception instance variable. If false, Exceptions are propagated up to the EventDispatchThread's dispatch loop.



notifier
protected Object notifier(Code)
The (potentially null) Object whose notifyAll() method will be called immediately after the Runnable.run() method returns.



runnable
protected Runnable runnable(Code)
The Runnable whose run() method will be called.




Constructor Detail
InvocationEvent
public InvocationEvent(Object source, Runnable runnable)(Code)
Constructs an InvocationEvent with the specified source which will execute the runnable's run() method when dispatched.
Parameters:
  source - the Object that originated the event
Parameters:
  runnable - the Runnable whose run() method will be executed



InvocationEvent
public InvocationEvent(Object source, Runnable runnable, Object notifier, boolean catchExceptions)(Code)
Constructs an InvocationEvent with the specified source which will execute the runnable's run() method when dispatched. If notifier is non-null, notifyAll() will be called on it immediately after run() returns.
Parameters:
  source - the Object that originated the event
Parameters:
  runnable - the Runnable whose run() method will beexecuted
Parameters:
  notifier - the Object whose notifyAll() method will becalled after Runnable.run() has returned
Parameters:
  catchExceptions - specifies whether dispatch() should catchException when executing the Runnable's run()method, or should instead propagate thoseExceptions to the EventDispatchThread'sdispatch loop



InvocationEvent
protected InvocationEvent(Object source, int id, Runnable runnable, Object notifier, boolean catchExceptions)(Code)
Constructs an InvocationEvent with the specified source and ID which will execute the runnable's run() method when dispatched. If notifier is non-null, notifyAll() will be called on it immediately after run() returns.
Parameters:
  source - the Object that originated the event
Parameters:
  id - the ID for the Event
Parameters:
  runnable - the Runnable whose run() method will beexecuted
Parameters:
  notifier - the Object whose notifyAll() method will becalled after Runnable.run() has returned
Parameters:
  catchExceptions - specifies whether dispatch() should catchException when executing the Runnable's run()method, or should instead propagate thoseExceptions to the EventDispatchThread'sdispatch loop




Method Detail
dispatch
public void dispatch()(Code)
Executes the Runnable's run() method and notifies the notifier (if any) when run() returns.



getException
public Exception getException()(Code)
Returns any Exception caught while executing the Runnable's run() method. A reference to the Exception if one was thrown; null if noException was thrown or if this InvocationEvent does notcatch exceptions



getWhen
public long getWhen()(Code)



paramString
public String paramString()(Code)
Returns a parameter string identifying this event. This method is useful for event-logging and for debugging. A string identifying the event and its attributes



Fields inherited from java.awt.AWTEvent
final public static long ACTION_EVENT_MASK(Code)(Java Doc)
final public static long ADJUSTMENT_EVENT_MASK(Code)(Java Doc)
final public static long COMPONENT_EVENT_MASK(Code)(Java Doc)
final public static long CONTAINER_EVENT_MASK(Code)(Java Doc)
final public static long FOCUS_EVENT_MASK(Code)(Java Doc)
final public static long INPUT_METHOD_EVENT_MASK(Code)(Java Doc)
final public static long INVOCATION_EVENT_MASK(Code)(Java Doc)
final public static long ITEM_EVENT_MASK(Code)(Java Doc)
final public static long KEY_EVENT_MASK(Code)(Java Doc)
final public static long MOUSE_EVENT_MASK(Code)(Java Doc)
final public static long MOUSE_MOTION_EVENT_MASK(Code)(Java Doc)
final public static long MOUSE_WHEEL_EVENT_MASK(Code)(Java Doc)
final public static long PAINT_EVENT_MASK(Code)(Java Doc)
final public static int RESERVED_ID_MAX(Code)(Java Doc)
final public static long TEXT_EVENT_MASK(Code)(Java Doc)
final public static long WINDOW_EVENT_MASK(Code)(Java Doc)
final public static long WINDOW_FOCUS_EVENT_MASK(Code)(Java Doc)
protected boolean consumed(Code)(Java Doc)
protected int id(Code)(Java Doc)

Methods inherited from java.awt.AWTEvent
protected void consume()(Code)(Java Doc)
public int getID()(Code)(Java Doc)
protected boolean isConsumed()(Code)(Java Doc)
public String paramString()(Code)(Java Doc)
public String toString()(Code)(Java Doc)

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