| Class | Description | 
|---|---|
| AnnotationUtils | 
 Checks metadata constraints on API calls. 
 | 
| ApiConstraintChecker | 
 Checks metadata constraints on API calls. 
 | 
| Annotation Type | Description | 
|---|---|
| Hidden | 
 annotation which specifies that a method parameter (e.g. 
 | 
| NotNull | 
 annotation used for determining the types of a Set 
 | 
| PermitAll | 
 Security annotation which allows a method to be called by all users
 regardless of their status. 
 | 
| RolesAllowed | 
 Security annotation which specifies a list of user roles which will
 be permitted to execute this method. 
 | 
| Validate | 
 annotation used for determining the types of a Set 
 | 
This includes classes that annotate source code and check metadata at runtime for server API calls.