Expression Language (EL)

The Lumis supports the use of EL (Expression Language), thus facilitating the implementation of the XSLs used.

Attributes and text content of elements in the XSL can contain EL, and are processed during a request.

The format that identifies an EL is "${<expression>}". If you wish to include ${ in your XSL without it representing the start of an EL, you can use ${$}{ as an escape method.

The XSL has the resources defined in the scope Request to Interface Instance in Resources available in EL.

Examples of how to use expressions, variables, implicit objects, operators, and reserved words of EL can be found at http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSPIntro7.html.