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After an event is configured in Canvas Studio, a simple Java handler is necessary to trigger the event. Let's assume that the event is a login activity, so when the user logs in, the event has to be raised to send an alert and an audit. Once the login event is configured in Canvas Studio, the Java Handler triggers the event, thereby facilitating the means for receiving alerts. The following code snippet is a sample Java Handler to raise an event:

Event eventToBeRaised = Event.getEventFor(<EVENT_ID>); 
HashMap eventData = new HashMap(); 
EventDispatcher.getInstance().raiseEvent(eventToBeRaised , eventData);

To raise an event from the Java handler class, you must specify the event object and event type, as shown in the following code snippet:

EventDispatcher.getInstance().raiseEvent(Event eventObj,Map eventData); // eventObj is the Object of the Event Type

The getEventFor and getEvent methods can be used to raise events from the handler classes, as shown in the following code snippet:

Event.getEventFor(String productCode,String subProductCode,String functionCode,String actionCode)
Event.getEvent(Long eventId)

To include the mandatory audit data in an event, specify the event mandatory data, as shown in the following code snippet: 

EventHandlerFrameworkConstants.getEventMandatoryDataFrom(CanvasRequestVO request,Event eventObj,String referenceNo