DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22743>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND INSERTED IN THE BUG DATABASE.
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22743 A JSTL EL Validator rule would make a lot of sense. Summary: A JSTL EL Validator rule would make a lot of sense. Product: Struts Version: Unknown Platform: All URL: http://www.rickhightower.com/CustomRule.zip OS/Version: All Status: NEW Severity: Enhancement Priority: Other Component: Validator Framework AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] A JSTL EL Validator rule would make a lot of sense. I believe this approach has several advantages over requiredif and validatewhen. I call this new rule validatejstlel (Validate JSTL EL). JSTL makes a lot of sense for the follwing reasons: 1) EASY TO LEARN The first advantage of this approach is it is easy to learn since developers know JSTL EL already. JSTL EL is easy to learn and you have to learn it for JSP 2.0 anyway. In fact, developers should be using JSTL tags in place of logic:* tags already. 2) ACCESS TO PAGE CONTEXT The nice thing about this rule is that it has access to the complete pageContext (Headers, Request Parameters, Session, the whole thing) name space like any JSTL tag. (more on this trick later). Since it uses JSTL EL you can make your expressions as complex as need be, e.g., you can check to see if one date is before another or if a string starts with a certain substring. It is very powerful, and yet very easy to learn and use. 3) VERY LITTLE CODE This rule was very easy to implement. It relies on the Jakarta JSTL EL implementation. Struts relies on JSP and Servlets and JSP will be using JSTL so this rule is a natural fit. (Less code to add means less code to maintain....) I've received some feedback from a few struts users (clients and peers). They like the idea of JSTL EL validator rule. It just makes so more sense and solves the problem of doing validation that involves relationships between form fields. This is a hole in the validator framework that gets filled quite nicely by validatejstlel. The beauty of this is it is so small. Here is the war file.... http://www.rickhightower.com/CustomRule.war Here is the src.... http://www.rickhightower.com/CustomRule.zip --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
