eventbrokerdirectinteraction.html

---
layout: documentation 
title: EventBroker 
teaser: Decoupled eventing with automatic thread switching
navigation:
   - name: Overview
     link: eventbroker.html
   - name: Tutorial
     link: eventbrokertutorial.html	
   - name: Registration by Attribute
     link: eventbrokerregistrationbyattribute.html
   - name: Registration over Interface
     link: eventbrokerregistrationoverinterface.html
   - name: Registration by Registrar
     link: eventbrokerregistrationbyregistrar.html
   - name: Simplified Handler Methods
     link: eventbrokersimplifiedhandlermethods.html
   - name: Direct Interaction
     link: eventbrokerdirectinteraction.html
   - name: Handlers
     link: eventbrokerhandlers.html
   - name: Matchers
     link: eventbrokermatchers.html
   - name: Exception Handling
     link: eventbrokerexceptionhandling.html
   - name: Extensions
     link: eventbrokerextensions.html
   - name: Logging
     link: eventbrokerlogging.html
   - name: Testability
     link: eventbrokertestability.html
   - name: Tips and Tricks
     link: eventbrokertipsandtricks.html
   - name: Specifications
     link: eventbrokerspecifications.html		 
---
<h2>Direct Interaction with the Event Broker</h2>
<p>
In cases where it does not make sense to register an instance on the event broker, you can directly fire events onto the event broker without a publisher. This is for example very useful with scheduled tasks. These tasks are created to perform some task and are then garbage collected. Therefore it would be overkill to register the tasks as a publisher, fire the event and then unregister the task and collect it.
</p>
<script type="syntaxhighlighter" class="brush: csharp"><![CDATA[
object publisher = ...;
object sender = ...;
EventArgs eventArgs = ...
eventBroker.Fire("topic://Event", publisher, HandlerRestriction.None, sender, eventArgs);
]]></script>
<p>
You have to define the event topic that should be fired, the object used as the publisher (used by matchers and logging), 
the handler restriction, the sender of the event and the event arguments.
</p>