org.universAAL.tutorials.context.bus.subscriber

Class MyContextSubscriber

java.lang.Object

org.universAAL.middleware.bus.member.BusMember

org.universAAL.middleware.bus.member.Subscriber

org.universAAL.middleware.context.ContextSubscriber

org.universAAL.tutorials.context.bus.subscriber.MyContextSubscriber

public class MyContextSubscriber
extends ContextSubscriber

Our tutorial application registers as a subscriber for certain context events at the context bus. The events we are interested in are defined in a (set of) context event pattern(s). The method handleContextEvent(ContextEvent) is our callback method.

Author:

Carsten Stockloew

Field Summary

Fields inherited from class org.universAAL.middleware.bus.member.BusMember

busResourceURI, owner, theBus

Constructor Summary

Constructors

Constructor and Description
MyContextSubscriber(ModuleContext context)

Method Summary

Modifier and Type	Method and Description
void	communicationChannelBroken() Method to be called when the communication of the Subsccriber with the Context Bus is lost.
static ContextEventPattern[]	getContextSubscriptionParams() Create the context event patterns that describe which context events we want to receive.
void	handleContextEvent(ContextEvent event) Method to be called when an Event forwarded in the Context Bus matches one of the Patterns registered by this Subscriber.

Methods inherited from class org.universAAL.middleware.context.ContextSubscriber

addNewRegParams, busDyingOut, getAllProvisions, getMyID, handleEvent, removeMatchingRegParams

Methods inherited from class org.universAAL.middleware.bus.member.BusMember

close, getComment, getLabel, getType, getURI, setComment, setLabel

Methods inherited from class java.lang.Object

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

Constructor Detail

MyContextSubscriber

public MyContextSubscriber(ModuleContext context)

Method Detail

getContextSubscriptionParams

public static ContextEventPattern[] getContextSubscriptionParams()

Create the context event patterns that describe which context events we want to receive.

Returns:

an array of context event patterns.

handleContextEvent

public void handleContextEvent(ContextEvent event)

Description copied from class: ContextSubscriber

Method to be called when an Event forwarded in the Context Bus matches one of the Patterns registered by this Subscriber.

Specified by:

handleContextEvent in class ContextSubscriber

Parameters:

event - The Context Event that matched the registered Patterns

See Also:

ContextSubscriber.handleContextEvent(ContextEvent)

communicationChannelBroken

public void communicationChannelBroken()

Description copied from class: ContextSubscriber

Method to be called when the communication of the Subsccriber with the Context Bus is lost.

Specified by:

communicationChannelBroken in class ContextSubscriber

See Also:

ContextSubscriber.communicationChannelBroken()