The Visualizer not only allows you to manage the server, but also to change the configuration of the deployed applications. In the Domain Browser window, select the helloworld node under NonClusteredServer/Applications. You will get a general description of the application in the panel that appears on the right. Next, select the Event Processing Network tab, which shows you a graphical representation of the application's EPN. This is demonstrated in the next screenshot:
This graphical view is not only a useful visualization aid for understanding the EPN, but also allows you to easily select any of the stages of the EPN.
As you have learned, the EPN is a directed graph representing the flow of events from left to right. The first stage, which is the left-most upstream node in the graph, is helloworldAdapter. Double-click this node and you will get a new panel with the adapter's configuration, as is shown in the next screenshot:
The helloworldAdapter
has a lot...