com.ibm.able
Interface AbleEventListenerManager

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

AbleAgent, AbleBean, AbleDataSink, AbleDataSource

All Known Implementing Classes:

AbleAbstractImport, AbleDBExport, AbleDefaultAgent, AbleExport, AbleObject

public interface AbleEventListenerManager

extends java.io.Serializable

The AbleEventListenerManager interface provides the methods needed to add and remove AbleEventListener objects and to notify those listeners of an AbleEvent.

Method Summary

void	addAbleEventListener(AbleEventListener theListener) Adds an event listener to this bean.
void	dataChanged(java.lang.Object theArg) Signal that this bean's internal state has changed by sending an event to all registered listeners.
java.util.Vector	getAbleEventListeners() Returns a list of all registered listeners.
void	notifyAbleEventListeners(AbleEvent theEvent) Notify all registered listeners by sending the specified event.
void	removeAbleEventListener(AbleEventListener theListener) Removes an event listener from this bean.

Method Detail

addAbleEventListener

public void addAbleEventListener(AbleEventListener theListener)

Adds an event listener to this bean.

Parameters:

theListener - An object interested in this bean.

removeAbleEventListener

public void removeAbleEventListener(AbleEventListener theListener)

Removes an event listener from this bean.

Parameters:

theListener - The object no longer interested in this bean.

notifyAbleEventListeners

public void notifyAbleEventListeners(AbleEvent theEvent)
                              throws AbleException

Notify all registered listeners by sending the specified event.

Parameters:

theEvent - The AbleEvent to be broadcast to all listeners.

Throws:

AbleException - If an error occurs.

getAbleEventListeners

public java.util.Vector getAbleEventListeners()

Returns a list of all registered listeners.

Returns:

A list of AbleEventListener objects.

dataChanged

public void dataChanged(java.lang.Object theArg)
                 throws AbleException

Signal that this bean's internal state has changed by sending an event to all registered listeners. Typically this is implemented as a convenience method to create an AbleEvent.DATACHANGED event and broadcast it to listeners.

Parameters:

theArg - An object to be used as the argument of an AbleEvent. The object could be the new data or a reference to an object whose data members have changed.

Throws:

AbleException - If an error occurs.