Designing and Implementing Composite Applications : webMethods CAF and OpenCAF Development Help : Working with CAF Events and Notifications : Configuring Advanced Condition and Action Expressions
Configuring Advanced Condition and Action Expressions
If you cannot create the handler or subscription conditions you want with the simple conditions and actions editors, you can create advanced (custom) syntax-based expressions to govern the behavior of a handler or subscription.
To configure advanced condition and action expressions
1. Open the project and the CAF Event Editor as described in Opening the CAF Events Editor and Enabling CAF Events.
*For event handlers, click the Handlers tab and click the handler you want to work with.
*For subscriptions, click the Subscriptions tab and click the subscription you want to work with.
Note:  
If you have already created and saved simple conditions for the handler or subscription, they will appear in the advance condition editor in their text-based format. You must delete the simple conditions and save your changes to clear this display.
2. Do one of the following:
*In the Condition Type field, select Advanced condition expression.
*In the Action Type box, select Advanced action expression.
The Advanced editor appears immediately below the list.
3. Click Edit to open the Edit Expression dialog box.
4. Create the advanced condition or action expression you want to apply either by selecting the expression terms with the available buttons, or by typing in the expression directly.
5. Save your changes.
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