Maybe you could use http://jasperreports.sourceforge.net/
-----Original Message----- From: Joe Germuska [mailto:[EMAIL PROTECTED] Sent: Monday, September 22, 2003 12:23 AM To: Struts Users Mailing List Subject: RE: [OT] Lightweight helper libraries for reporting? David: The main reason I'm not ready to use displaytag is because I need to generate reports for more than just HTML output; my users will have the choice to get a delimited file as well, or instead of HTML, and they'll have the option to get the report mailed to them as well as generated while-they-wait. I know that displaytag has some support for export files, but I'm figuring it's more work than it's worth to use a JSP tag library for asynchronous generation of a CSV file sent as an email attachment. My design is to have a model-level report returned from a report service to a controller which can then send the report to various renderers. I just haven't yet written classes to deal with common report functions like grouping and totalling, and it seems like something that would be generally useful. I think displaytag is pretty impressive, and totally appropriate for a model where the web page is the primary output form. I actually find the decorator model a little frustrating, as it requires writing and compiling code for view things which I'd prefer to have more flexibly changeable in a JSP (at least it did a year ago when I used it last) -- I'm pretty sure I had to compile a date format into a column decorator; what happens when the client decides they want that to change? I have to recompile the class? Or find someplace other than displaytag to set a runtime property for the date format; that seems awkward. I think instead of a single "table" tag, it would be nice to have a "table" tag which defined beans and made them available to nested tags for various purposes, like many Struts tags do (html:messages, logic:iterate, etc). This might be hard to do and still achieve everything that displaytag does, but if I were really motivated, I'd look at adapting displaytag to a model more like that... Joe At 22:59 -0400 9/19/03, David G Friedman wrote: >Joe, > >I've been planning on using the displaytag library for that stuff when I get >to it next week. Why won't the decorator classes work for you to perform >summations of rows, groups, and so forth? I'm wondering why it won't work >for you in case the same reasons might apply to my application.... > >For reference, an example of the decorators for summations of groups and >rows is here: >http://edhill.its.uiowa.edu/display-examples/example-callbacks.jsp > >With their Java decorator class code example code here: >http://edhill.its.uiowa.edu/display-examples/TotalWrapper.java.txt -- -- Joe Germuska [EMAIL PROTECTED] http://blog.germuska.com "If nature worked that way, the universe would crash all the time." --Jaron Lanier --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
