Hi I was wondering. If I put @Observer(
itemsAdded) on an object, 2 users are using the application and click something that raise an event
itemsAdded. What will happen ? will event trigerred by user A affect objects that are run by User B ?
It depends on the scope of the component with the @Observer method. If the component is session-scope (or finer grained), there will be total separation. Only if your observer component is application scoped is there any possibility of inter-session interaction.