Sun Identity Manager Deployment Reference

When to Use XML Object Language Instead of XPRESS

Although both XML Object Language and XPRESS provide ways of representing lists in forms, XML Object syntax is more efficient than XPRESS if the list is long and contains static data. The list is built in memory once and it is reused every time it is referenced. In contrast, XPRESS list syntax is re-evaluated on every reference and a new list is created each time.

The XML object language is most typically used when creating lists of the information described in the following table.

Table 6–2 XML Use for Information Lists

Type of Information Lists 

Where Used 

Machine names 


Business sites 


Approver names