sample-java-websocket-decorator

Showing how to use @Websocket to register a WebSocket handler in Eclipse Dirigible.

Layout

sample-java-websocket-decorator/   # Dirigible project (registry path)
└── demo/
    └── websocket/
        ├── ChatHandler.java       # @Websocket — registers "java-chat" endpoint
        └── WebsocketStatus.java   # @Controller — reports whether the handler is registered

Usage

Drop this project into the Dirigible IDE (clone via the Git perspective and publish, or copy it to /registry/public/sample-java-websocket-decorator/). The synchronizer compiles ChatHandler.java and registers it in JavaWebsocketRegistry. Verify via:

GET /services/java/sample-java-websocket-decorator/demo/websocket/WebsocketStatus/status

Returns {"registered": true} when the "java-chat" endpoint is active.

Websocket styles

Two ways to write a Java WebSocket handler — pick one per @Component class (never both), like Spring:

• Strong interface — ChatHandler is a @Component that implements WebsocketHandler and supplies its own endpoint() (like TextWebSocketHandler); no @Websocket annotation.
• Method-level annotations — TickerHandler is a @Websocket(endpoint = …) class with @OnOpen/@OnMessage/@OnClose methods (Jakarta @ServerEndpoint style — the endpoint has no method-level home).

See the Develop guide and the Java SDK.