| Package | Description | 
|---|---|
| org.springframework.web.socket.handler | Convenient  WebSocketHandlerimplementations and decorators. | 
| org.springframework.web.socket.sockjs.transport.handler | TransportHandlerimplementation classes as well as a concreteSockJsService. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | BinaryWebSocketHandlerA convenient base class for  WebSocketHandlerimplementations
 that process binary messages only. | 
| class  | TextWebSocketHandlerA convenient base class for  WebSocketHandlerimplementations
 that process text messages only. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | SockJsWebSocketHandlerAn implementation of  WebSocketHandlerthat adds SockJS messages frames, sends
 SockJS heartbeat messages, and delegates lifecycle events and messages to a targetWebSocketHandler. |