How to Open the EPN Editor from a Context or Configuration File

Oracle CEP IDE for Eclipse and the Event Processing Network 6-5 Figure 6–5 EPN Flow Representation The EPN is composed of nodes connected by links and streams. Nodes are of various types including adapter, processor, database table, bean, and cache. For more information on the graphic notation the EPN Editor uses on nodes, links, and streams, see: ■ Section 6.2.7, Configuration Badging ■ Section 6.2.8, Link Specification Location Indicator

6.2.2 Filtering

Although you often specify your EPN in a single assembly file, you may specify an EPN across multiple assembly files. By default the EPN Editor shows the EPN for a single Oracle CEP application bundle with the information combined from all files. To see the network for a single assembly file simply select that file from the Filter pull-down menu as Figure 6–6 shows. Figure 6–6 Filtering the EPN by Assembly File When editing an EPN, the assembly file shown in the EPN Editor filter is the assembly file to which new nodes will be added. If the EPN Editor filter is set to Full EPN then the first assembly file in the filter list will be the file to which new nodes will be added. Existing nodes will be edited in or deleted from the assembly file in which they are defined. If the assembly file the EPN Editor edits is open in an Eclipse source editor, then the edits will be made to the editor for that open file. In this case, you will need to save changes to the open editor before the changes appear in the file on disk. 6-6 Oracle Complex Event Processing Developers Guide If the assembly file the EPN Editor edits is not open in an Eclipse source editor, then the edits are immediately applied to the file on disk. For more information, see Section 4.3, Creating EPN Assembly Files .

6.2.3 Zooming

You can change the zoom level of the EPN Editor by entering a percent value into the zoom field or selecting a value from the zoom field pull-down menu as Figure 6–7 shows. To fit the EPN into the current EPN Editor window, select Fit to Window. Figure 6–7 Zoom Level

6.2.4 Layout

You can optimize and simplify the EPN layout by clicking Layout EPN as Figure 6–8 shows. Figure 6–8 Optimize Layout

6.2.5 Showing and Hiding Unconnected Beans

You can also filter out bean elements with no references in the EPN. Clicking ShowHide Unconnected Beans will toggle the visibility of such beans as Figure 6–9 shows. For more information, see Section 6.4.3, Laying Out Nodes .