package greenfoot.event;

import java.util.EventObject;




| Event used when something changes from being valid to invalid or vice versa.
|
| @author Poul Henriksen
|
public class ValidityEvent
extends EventObject{    
   private String reason;

   
   


| Create a new event.
|
| @param source
|            The source of the event.
| @param reason
|            The reason for the change of validity.
|
public ValidityEvent(Object source, String reason)
   {
      super(source);
       
      this.reason = reason;     
      }

   
   


| Get the reason why this event was created. Typically a message explaining
| why a it is not valid.
|
public String getReason()
   {        
      return reason;     
      } 
   }