org.tango.server.events
Class ChangeEventTrigger

java.lang.Object
  org.tango.server.events.ChangeEventTrigger

All Implemented Interfaces:

IEventTrigger

public class ChangeEventTrigger
extends java.lang.Object
implements IEventTrigger

manage trigger for EventType.CHANGE_EVENT

Author:

ABEILLE

Constructor Summary

ChangeEventTrigger(AttributeImpl attribute, java.lang.String absolute, java.lang.String relative)
Ctr

Method Summary

boolean	doCheck()
boolean	isSendEvent()
void	setCriteria(java.lang.String absolute, java.lang.String relative)
void	setError(fr.esrf.Tango.DevFailed error) Notify the trigger of the last error occured
void	updateProperties() Update event properties

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeEventTrigger

public ChangeEventTrigger(AttributeImpl attribute,
                          java.lang.String absolute,
                          java.lang.String relative)

Ctr

Parameters:

attribute - The attribute that send event

absolute - The absolute change delta

relative - The relative change delta

Method Detail

setCriteria

public void setCriteria(java.lang.String absolute,
                        java.lang.String relative)

isSendEvent

public boolean isSendEvent()
                    throws fr.esrf.Tango.DevFailed

Specified by:

isSendEvent in interface IEventTrigger

Returns:

true if an event must be send

Throws:

fr.esrf.Tango.DevFailed

setError

public void setError(fr.esrf.Tango.DevFailed error)

Description copied from interface: IEventTrigger

Notify the trigger of the last error occured

Specified by:

setError in interface IEventTrigger

updateProperties

public void updateProperties()
                      throws fr.esrf.Tango.DevFailed

Description copied from interface: IEventTrigger

Update event properties

Specified by:

updateProperties in interface IEventTrigger

Throws:

fr.esrf.Tango.DevFailed

doCheck

public boolean doCheck()

Specified by:

doCheck in interface IEventTrigger

Returns:

true if do the event fire check