org.eclipse.scada.da.client.samples

Class GCTest1

java.lang.Object

org.eclipse.scada.da.client.samples.SampleBase

org.eclipse.scada.da.client.samples.GCTest1

All Implemented Interfaces:

ItemUpdateListener

public class GCTest1
extends SampleBase
implements ItemUpdateListener

Field Summary

Fields inherited from class org.eclipse.scada.da.client.samples.SampleBase

connection, uri

Constructor Summary

Constructors

Constructor and Description
GCTest1(java.lang.String uri, java.lang.String className, java.lang.String itemName)

Method Summary

Methods

Modifier and Type	Method and Description
void	connect()
protected void	finalize()
static void	main(java.lang.String[] args)
void	notifyDataChange(Variant value, java.util.Map<java.lang.String,Variant> attributes, boolean cache) A change on the data item occurred.
void	notifySubscriptionChange(SubscriptionState state, java.lang.Throwable subscriptionError) Notify a change in the subscription change
void	subscribe()
void	unsubscribe()

Methods inherited from class org.eclipse.scada.da.client.samples.SampleBase

dispose, sleep

Methods inherited from class java.lang.Object

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

Constructor Detail

GCTest1

public GCTest1(java.lang.String uri,
       java.lang.String className,
       java.lang.String itemName)
        throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

connect

public void connect()
             throws java.lang.Exception

Overrides:

connect in class SampleBase

Throws:

java.lang.Exception

subscribe

public void subscribe()

unsubscribe

public void unsubscribe()

notifyDataChange

public void notifyDataChange(Variant value,
                    java.util.Map<java.lang.String,Variant> attributes,
                    boolean cache)

Description copied from interface: ItemUpdateListener

A change on the data item occurred.

Specified by:

notifyDataChange in interface ItemUpdateListener

Parameters:

value - The new value, or null if the value did not change

attributes - The attributes that changed, may be null if no attribute change at all. The must be unmodifiable by the receiver

cache - Indicating that the change came from the cache, this means that the change was not triggered by a device and that all attribute where sent, not only the changed ones

notifySubscriptionChange

public void notifySubscriptionChange(SubscriptionState state,
                            java.lang.Throwable subscriptionError)

Description copied from interface: ItemUpdateListener

Notify a change in the subscription change

Specified by:

notifySubscriptionChange in interface ItemUpdateListener

Parameters:

state - the new subscription change

subscriptionError - the new subscription error or null if everything is ok

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception