| Interface | Description | 
|---|---|
| ScopeWall | |
| UserWall | |
| Wall | |
| WallService | 
| Class | Description | 
|---|---|
| LifecycleListener | 
 Lifecycle Listener implementation to handle init and destroy
 servlet actions for the specific service. 
 | 
| WallMessage | |
| WallServiceFactory | 
| Enum | Description | 
|---|---|
| Wall.MESSAGE_TYPE | |
| Wall.Sort | |
| Wall.Visibility | 
| Exception | Description | 
|---|---|
| WallServiceException | 
 This class is the  
Exception class for all Wall Service
 related exceptions raised. |