| Interface | Description | 
|---|---|
| ServiceRegistrar | 
 Defines the interface to the lookup service. 
 | 
| ServiceRegistration | 
 A registered service item is manipulated using an instance of this class. 
 | 
| Class | Description | 
|---|---|
| ServiceEvent | 
 This class is used for remote events sent by the lookup service. 
 | 
| ServiceID | 
 A universally unique identifier (UUID) for registered services. 
 | 
| ServiceItem | 
 Items are stored in and retrieved from the lookup service using
 instances of this class. 
 | 
| ServiceMatches | 
 An instance of this class is used for the return value when looking up
 multiple items in the lookup service. 
 | 
| ServiceTemplate | 
 Items in the lookup service are matched using instance of this class. 
 | 
ServiceRegistrar.