EventReceiver (Sakai Entity Broker API 22.3 API)

```
public interface EventReceiver
```
Allows a developer to create a method which will be called when specific events occur by implementing this interface, this uses the Sakai event services

Author:

Aaron Zeckoski (aaronz@vt.edu), Antranig Basman (antranig@caret.cam.ac.uk)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String[]`	`getEventNamePrefixes()`	This defines the events that you want to know about by event name, `receiveEvent(String, String)` will be called whenever an event occurs which has a name which begins with any of the strings this method returns, simply return empty array if you do not want to match events this way Note: Can be used with `getResourcePrefix()`
`String`	`getResourcePrefix()`	This defines the events that you want to know about by event resource (reference), `receiveEvent(String, String)` will be called whenever an event occurs which has a resource which begins with the string this method returns, simply return empty string to match no events this way Note: Can be used with `getEventNamePrefixes()`
`void`	`receiveEvent(String eventName, String id)`	This defines what should happen when an event occurs that you want to know about

- Method Detail
  - getEventNamePrefixes
```
String[] getEventNamePrefixes()
```
    This defines the events that you want to know about by event name, receiveEvent(String, String) will be called whenever an event occurs which has a name which begins with any of the strings this method returns, simply return empty array if you do not want to match events this way
    
    Note: Can be used with getResourcePrefix()
    
    Returns:
    
    an arrays of event name prefixes
  - getResourcePrefix
```
String getResourcePrefix()
```
    This defines the events that you want to know about by event resource (reference), receiveEvent(String, String) will be called whenever an event occurs which has a resource which begins with the string this method returns, simply return empty string to match no events this way
    
    Note: Can be used with getEventNamePrefixes()
    
    Returns:
    
    a string with a resource (reference) prefix
  - receiveEvent
```
void receiveEvent(String eventName,
                  String id)
```
    This defines what should happen when an event occurs that you want to know about
    
    Parameters:
    
    eventName - a string which represents the name of the event (e.g. announcement.create)
    
    id - the local id of the entity