org.esa.beam.framework.param
Class ParamChangeEvent

java.lang.Object
  java.util.EventObject
      org.esa.beam.framework.param.ParamChangeEvent

All Implemented Interfaces:

Serializable

public class ParamChangeEvent
extends EventObject

A ParamChangeEvent occurs when the value of parameter has changed.

Version:

$Revision$ $Date$

Author:

Norman Fomferra

See Also:

Parameter, Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

ParamChangeEvent(Object source, Parameter parameter, Object oldValue)
Constructs a new event for the given source, parameter and the parameter's old value.

Method Summary

Object	getOldValue() Returns the parameter's old value.
Parameter	getParameter() Returns the parameter whose value changed.

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

ParamChangeEvent

public ParamChangeEvent(Object source,
                        Parameter parameter,
                        Object oldValue)

Constructs a new event for the given source, parameter and the parameter's old value.

Parameters:

source - the source which fired this event

parameter - the parameter whose value changed

oldValue - the parameter's old value

Method Detail

getParameter

public Parameter getParameter()

Returns the parameter whose value changed.

getOldValue

public Object getOldValue()

Returns the parameter's old value.