org.opennms.osgi

Class EventRegistry

java.lang.Object

org.opennms.osgi.EventRegistry

public class EventRegistry
extends Object

The EventRegistry is a single point of entry to get an EventListener/EventConsumer registered in the underlying OSGi-Container. To register an EventConsumer, you have to invoke the method addPossibleEventConsumer(Object, VaadinApplicationContext).

Author:

Markus von Rüden

Constructor Summary

Constructors

Constructor and Description
EventRegistry(org.osgi.framework.BundleContext bundleContext)

Method Summary

Methods

Modifier and Type	Method and Description
void	addPossibleEventConsumer(Object possibleEventConsumer, VaadinApplicationContext applicationContext) Adds the possibleEventConsumer as an EventListener/EventConsumer to the OSGi registry. The event consumer is registered when: The object has at least one method annotated with @EventConsumer The annotated method has only one parameter.
EventProxy	getScope(VaadinApplicationContext vaadinApplicationContext)

Methods inherited from class java.lang.Object

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

Constructor Detail

EventRegistry

public EventRegistry(org.osgi.framework.BundleContext bundleContext)

Method Detail

addPossibleEventConsumer

public void addPossibleEventConsumer(Object possibleEventConsumer,
                            VaadinApplicationContext applicationContext)

Adds the possibleEventConsumer as an EventListener/EventConsumer to the OSGi registry.

The event consumer is registered when:

• The object has at least one method annotated with @EventConsumer
• The annotated method has only one parameter.

Attention: If the possibleEventConsumer has no Annotation @EventConsumer or has multiple method parameters the object is not registered as a listener!
The VaadinApplicationContext parameter is used to bind the event consumer to the user session (otherwise all users would be informed when one user provokes an event notification).

Parameters:

possibleEventConsumer - An object with or without an annotation @EventConsumer.

applicationContext - must not be null. is used to bind the event consumer to the user session (otherwise all users would be informed when one user provokes an event notification).

See Also:

EventConsumer}, {@link EventListener}

getScope

public EventProxy getScope(VaadinApplicationContext vaadinApplicationContext)