sample-java-listener-decorator

Showing how to use @Listener to subscribe to an ActiveMQ queue in Eclipse Dirigible.

Layout

sample-java-listener-decorator/   # Dirigible project (registry path)
└── demo/
    └── listener/
        ├── OrderListener.java    # @Listener — subscribes to "java-order-queue"
        └── trigger.mjs           # JS helper that sends a test message to the queue

Usage

Drop this project into the Dirigible IDE (clone via the Git perspective and publish, or copy it to /registry/public/sample-java-listener-decorator/). The synchronizer compiles OrderListener.java and registers the queue listener. Hit /services/js/sample-java-listener-decorator/demo/listener/trigger.mjs to send a test message; the listener logs OrderListener received: … on receipt.

Listener styles

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

• Strong interface — OrderListener is a @Component that implements MessageHandler and supplies its own destination() (like jakarta.jms.MessageListener); no @Listener annotation.
• Method-level annotation — InvoiceListener is a @Component with an @Listener-annotated method (Spring @JmsListener style), using a constructor-injected Auditor bean.

See the Develop guide and the Java SDK.