de.gsi.dataset.event

Class UpdateEvent

java.lang.Object

java.util.EventObject

de.gsi.dataset.event.UpdateEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AxisChangeEvent, InvalidatedEvent, UpdatedDataEvent, UpdatedMetaDataEvent

public class UpdateEvent
extends EventObject

Event class that is passed along the notification performed by the EventSource class. The class is intended to be further extended by named derivatives to allow for context-based event filters.

Author:

rstein

See Also:

for details, Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
UpdateEvent(EventSource source) generates new update event
UpdateEvent(EventSource source, String msg) generates new update event
UpdateEvent(EventSource source, String msg, Object payload) generates new update event

Method Summary

Modifier and Type	Method and Description
String	getMessage()
Object	getPayLoad()

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateEvent

public UpdateEvent(EventSource source)

generates new update event

Parameters:

source - the class issuing the event

UpdateEvent

public UpdateEvent(EventSource source,
                   String msg)

generates new update event

Parameters:

source - the class issuing the event

msg - a customised message to be passed along (e.g. for debugging)

UpdateEvent

public UpdateEvent(EventSource source,
                   String msg,
                   Object payload)

generates new update event

Parameters:

source - the class issuing the event

msg - a customised message to be passed along (e.g. for debugging)

payload - a customised user pay-load to be passed to the listener

Method Detail

getMessage

public String getMessage()

Returns:

a customised message to be passed along (e.g. for debugging)

getPayLoad

public Object getPayLoad()

Returns:

a customised user pay-load to be passed to the listener