To modify an existing playback filter entry, select the entry in the Playback If you want to create a new playback schedule entry:

4-28 Oracle Complex Event Processing Visualizer Users Guide ■ Section 4.4.1, How to Trace Events on a Dynamic Channel ■ Section 4.4.2, How to Inject a Simple Event on an Event Inspector Service Dynamic Channel ■ Section 4.4.3, How to Inject an Event as a JSON String on an Event Inspector Service Dynamic Channel For more information, see: ■ Chapter 15, Managing the Event Inspector Service ■ Chapter 14, Managing HTTP Publish-Subscribe Servers ■ Section 4.5, Monitoring a Channel Stage in the EPN ■ Testing Applications With the Event Inspector in the Oracle Complex Event Processing Developers Guide for Eclipse Alternatively, you can record and playback events as Section 4.3, Recording and Playing Back Events in the EPN describes.

4.4.1 How to Trace Events on a Dynamic Channel

You can use Oracle CEP Visualizer to view the messages that are currently being published to a static channel. For more information, see Section 9.5, HTTP Publish-Subscribe Server Management . To trace events on a dynamic channel: 1. Optionally, configure the HTTP pub-sub server to use to trace events. See Chapter 15, Managing the Event Inspector Service .

2. In the left pane, navigate to and expand the Applications node of the Oracle CEP

instance to which the application is deployed.

3. Select appname, where appname is the name of the application in which you want

to trace and inject events.

4. In the right pane, click the Event Processing Network tab.

The Event Processor Network panel is displayed as Figure 4–24 shows. Managing the Event Processing Network 4-29 Figure 4–29 Event Processing Network Panel 5. Select the stage for which you wish to trace events: a. To use the EPN diagram: – Right-click the stage for which you wish to trace events and select Trace Event . b. To use the domain tree: – Expand the appname Stages node, where appname is the name of the application in which you want to trace events. – Click the stage for which you wish to trace an event. – In the right pane, click the Trace Event tab The Trace Event panel appears as shown in Figure 4–30 .