Gerke Kok, auteur op First8First8

Durable Message Driven Beans in WildFly

With Message Driven Beans (MDB’s) your Java application can respond to events send asynchronously. This can go via Queues, which allow your application to process events in parallel, and Topics which can be used to send one event to multiple applications/clients. MDB’s can be annotated to configure which JMS-Topic they should listen to. This is how that can be done:

@MessageDriven(name = "ExampleEventListener", activationConfig = {
    @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),
    @ActivationConfigProperty(propertyName = "destinationLookup", propertyValue = "/jms/topic/exampleEvents"),
    @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge") })
public class ExampleEventListener implements MessageListener {
    @Override
    public void onMessage(Message message) {
       // TODO: do something
    }
}

@MessageDriven(name = "ExampleEventListener", activationConfig = {

@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),

@ActivationConfigProperty(propertyName = "destinationLookup", propertyValue = "/jms/topic/exampleEvents"),

@ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge") })

public class ExampleEventListener implements MessageListener {

@Override

public void onMessage(Message message) {

// TODO: do something

}

… Lees verder Durable Message Driven Beans in WildFly

JBoss LDAP Authentication

Every environment needs it, you can hardly get around it: User Management. It is always a challenge and a drag at the same time. How much should be stored? How should passwords be stored? Do we need RBAC? Do we need some SSO and with whom? Do we need a (G)UI for management?

Wouldn’t it be great if we could pass this responsibility on. And we can ! In Enterprise-land there is LDAP.