Jakarta EE Extension Arayüzü

Örnek

Şöyle yaparız

import jakarta.enterprise.inject.spi.Extension;
public class StartupBeanExtension implements Extension {

  private final Set<Bean<?>> startupBeans = new LinkedHashSet<>();

  <X> void processBean(@Observes ProcessBean<X> event) {
    if (event.getAnnotated().isAnnotationPresent(Startup.class)
        && event.getAnnotated().isAnnotationPresent(ApplicationScoped.class)) {
      this.startupBeans.add(event.getBean());
    }
  }

  void afterDeploymentValidation(@Observes AfterDeploymentValidation event, 
                                 BeanManager manager) {
    for (Bean<?> bean : startupBeans) {
       manager.getReference(bean, bean.getBeanClass(), 
                           manager.createCreationalContext(bean))
              .toString();
    }
  }
}