public class EventHandler
extends java.lang.Object
implements java.lang.Comparable, java.io.Serializable
Constructor and Description |
---|
EventHandler(Event event,
java.lang.String className)
Creates an event handler with the given event type and implementing class
name.
|
Modifier and Type | Method and Description |
---|---|
int |
compareTo(java.lang.Object o)
Compare the sequence number of two event handlers.
|
PageEditorListener |
getClassInstance()
Returns an instance of the event listener that is configured to handle
this event.
|
java.lang.String |
getClassName()
Returns the class name of this event handler's implementation.
|
Event |
getEvent()
Returns the event with which this event hander is associated.
|
int |
getSequence()
Returns the sequence number of this event handler.
|
void |
setSequence(int sequence)
Set the sequence number of this event handler.
|
public EventHandler(Event event, java.lang.String className)
event
- Event for which to invoke this handler.className
- name of the class that implements the event handler.java.lang.NullPointerException
- If either event
or
className
is null
.public Event getEvent()
Event
object with which this handler is associated.public java.lang.String getClassName()
public int getSequence()
public void setSequence(int sequence)
sequence
- sequence number of this event handlerpublic int compareTo(java.lang.Object o)
compareTo
in interface java.lang.Comparable
o
- another EventHandler objectjava.lang.ClassCastException
- if o is not a EventHandlerpublic PageEditorListener getClassInstance() throws java.lang.Exception
PageEditorListner
that is
registered to handle this event.java.lang.Exception
- If the class name given by className
specified while creating this event handler cannot be located,
initialised or instantiated. Exception is also thrown if the
class does not implement PageEditorListener
interface.