Simultaneous Updates Multi-Server Domains and Configuration History Management

4-2 Oracle Complex Event Processing Visualizer Users Guide Figure 4–1 Event Processing Network Panel The name of a stage appears above the stage in black text. For example, the first Oracle CQL processor is named FindCrossRates and the name of its inbound channel is FxQuoteStream. The name of the event type transmitted on a given channel is shown above the connecting line in blue text. For example, the event type transmitted on the FxQuoteStream is StockTick. 4. To navigate to areas of the EPN that are off the screen, click in the miniature EPN view, and drag. 5. To change the layout of the EPN, select a layout option from the Layout menu: ■ organic ■ tree ■ hierarchic default ■ balloon ■ orthogonal 6. To change the way the EPN fits in the browser window:

a. Click on the Zoom slider and drag to the right to increase the zoom level; drag

left to decrease the zoom level.

b. Click the Fit Content button to automatically adjust the zoom level to make all

of the EPN visible in the browser window; click the Actual Size button to reset the zoom level to zero. c. Click the Zoom Out + button or Zoom In - button. Managing the Event Processing Network 4-3

4.2 Viewing and Editing the Configuration of a Stage

Using Oracle CEP Visualizer, you can view the configuration of any stage and change the configuration for some stages.

4.2.1 How to View and Edit the Configuration of a Stage

You can view and change the configuration of a stage using the Oracle CEP Visualizer. To view and edit the configuration of a stage: 1. In the left pane, navigate to and expand the Applications node of the Oracle CEP instance to which the application is deployed.

2. Select appname, where appname is the name of the application you want.

3. Select the stage you wish to view and configure:

a. To use the EPN diagram:

– Click the Event Processing Network tab. – Double-click the stage you wish to view or Right-click the stage and select Open Panel .

b. To use the domain tree:

– Expand the appname Stages node, where appname is the name of the application you want to view. – Click the stage you wish to view. – In the right pane, click the General tab The stage’s configuration appears. For example, Figure 4–2 shows the General tab for a channel. Note: Any changes to rules and Oracle high availability adapters are propagated to the other servers in the same group. That is, all rule and and Oracle high availability adapter configurations is automatically synchronized. Other configuration changes are not synchronized. For example, if you change recordplayback or JMS adapter configuration on one server in a multi-server domain, then these changes are not synchronized with the other servers in the same group. For more information, see Chapter 18, Managing Multi-Server Domains