Optimizing Expressions in Form Fields

Some activities performed in forms call resources that are external to Identity Manager. Accessing these resources can affect Identity Manager performance, especially if the results contain long lists of values, such as compiling a list of groups or email distribution lists.

To improve performance during these calls, follow the guidelines in “Using a Java Class to Obtain Field Data” in Sun Identity Manager Deployment Reference.

Also, avoid using JavaScript^TM in performance-critical expressions such as <Disable> expressions. Short XPRESS expressions are easier to debug if you use the built-in tracing facilities. Use JavaScript for complex logic in workflow actions.

If a form is slow to display, you can use the debug/Show_Timings.jsp page to determine the problem. Look for calls to Formconvert.convertField(). This method shows how long each field took to compute its value.