de.stz.bt.framework
Class DataPoint

java.lang.Object
  java.util.Observable
      de.stz.bt.framework.DataPoint

Direct Known Subclasses:

FND_DataPoint

public class DataPoint

extends java.util.Observable

This class defines a generic datapoint for the Framework. Each Datapoint Type should inherit from this, like MODBUS or LON

Version:

$Id: DataPoint.html,v 1.3 2004/11/08 08:10:45 jseitter Exp $

Author:

J. Seitter

Field Summary

private java.util.Date	creationTime
private java.util.Date	lastAccessTime
private java.util.Date	lastChangeTime
protected static org.apache.log4j.Logger	logger Keeps the logger for all subclasses

Fields inherited from class java.util.Observable

Constructor Summary

DataPoint()

Method Summary

java.util.Date	getCreationTime()
java.util.Date	getLastAccessTime()
java.util.Date	getLastChangeTime()
private void	setCreationTime() Sets the Creation time to the current time
void	setLastAccessTime() Sets the Access time to the current time
void	setLastChangeTime() Sets the Change time to the current time

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static org.apache.log4j.Logger logger

Keeps the logger for all subclasses

creationTime

private java.util.Date creationTime

lastAccessTime

private java.util.Date lastAccessTime

lastChangeTime

private java.util.Date lastChangeTime

Constructor Detail

DataPoint

public DataPoint()

Method Detail

setCreationTime

private void setCreationTime()

Sets the Creation time to the current time

setLastAccessTime

public void setLastAccessTime()

Sets the Access time to the current time

setLastChangeTime

public void setLastChangeTime()

Sets the Change time to the current time

getCreationTime

public java.util.Date getCreationTime()

Returns:

The time when this datapoint object was instantiated

getLastAccessTime

public java.util.Date getLastAccessTime()

Returns:

The time when the last READ access occured on this object

getLastChangeTime

public java.util.Date getLastChangeTime()

Returns:

The time when the last WRITE access occured on this object