org.nakedobjects.object.control
Class AboutChangedEvent

java.lang.Object
  java.util.EventObject
      org.nakedobjects.object.control.AboutChangedEvent

All Implemented Interfaces:

java.io.Serializable

public final class AboutChangedEvent

extends java.util.EventObject

Encapsulates the reason of the permission held by the MutableAbout that is notifying its listeners that it has changed.

The event holds the reason of the permission rather than the actual permission since permissions are not immutable nor are easily cloned (providing that would not be safe since client listeners could change the MutableAbout's permission without its knowledge.

See Also:

MutableAbout, Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

AboutChangedEvent(java.lang.Object source, java.lang.String reason)

Method Summary

java.lang.String	getReason() Returns the reason why the permission was changed.
java.lang.String	toString() String representation of this event.

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AboutChangedEvent

public AboutChangedEvent(java.lang.Object source,
                         java.lang.String reason)

Method Detail

getReason

public java.lang.String getReason()

Returns the reason why the permission was changed. Whether the permission is a veto or an allow is determined by which method in AboutListener has been invoked.

Permissions do not need to have a reason - it could be null. Equally the string returned by this method could be null also.

See Also:

EventObject.getSource(), AboutListener

toString

public java.lang.String toString()

String representation of this event.