| Class Summary | 
| AbstractInterceptor | This is the abstract class for an Interceptor. | 
| AddInterceptor | This is the Interceptor which adds Persistent objects to the database. | 
| DeleteInterceptor | This is the Interceptor which deletes Persistent objects from the database. | 
| LockInterceptor | This is the Interceptor which locks the Persistent objects in the database. | 
| QueryInterceptor | This is the Interceptor which queries the database. | 
| UpdateInterceptor | This is the Interceptor which updates Persistent objects in the database. |