Possible to detect when application starts successfully in Wildfly?

Question

Is there a way to detect when a war file is successfully loaded by Wildfly and cause some code to execute?

Answer 1

You have a few options.

If you're leveraging CDI, you can add an observer method for @Observes @Initialized(ApplicationScoped.class) Object o If you're leveraging EJBs, you can have a @javax.ejb.Singleton @javax.ejb.Startup with a @PostConstruct method that does initialization. Here are two example implementations.

// using a CDI object
@ApplicationScoped
public class SomeStartupBean {
    public void initOnStartup(@Observes @Initialized(ApplicationScoped.class) Object obj) {
        // do your start up logic here
    }
}

or

// using an EJB
@Singleton
@Startup
public class SomeStartupSingleton {
    @PostConstruct
    public void initOnStartup() {
        // do your start up logic here
    }
}