EventListenerService (Apache Unomi :: Root Project 2.5.1-SNAPSHOT API)

All Known Implementing Classes:

RulesServiceImpl, UnomiEventPublisher
```
public interface EventListenerService
```
A service that gets notified (via onEvent(Event)) whenever an event it can handle as decided by canHandle(Event) occurs in the context server.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canHandle(Event event)`	Whether or not this listener can handle the specified event.
`int`	`onEvent(Event event)`	Handles the specified event.

- Method Detail
  - canHandle
```
boolean canHandle(Event event)
```
    Whether or not this listener can handle the specified event.
    
    Parameters:
    
    event - the event to be handled
    
    Returns:
    
    true if this listener can handle the specified event, false otherwise
  - onEvent
```
int onEvent(Event event)
```
    Handles the specified event.
    
    Parameters:
    
    event - the event to be handled
    
    Returns:
    
    the result of the event handling as combination of EventService flags, to be checked using bitwise AND (&) operator
    
    See Also:
    
    EventService.NO_CHANGE, EventService.PROFILE_UPDATED, EventService.SESSION_UPDATED