org.tango.server.events
Class ChangeEventTrigger

java.lang.Object
  extended by 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


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