I have a situation where I need to be able to change the logic that occurs on a page at runtime without recompiling or redeploying the app. For example, imagine a shopping cart for a site that offers all kids of constantly changing promotions. Examples would be:
- Buy a blue widget and get 10% off a white widget. - Buy two white widgets and get $5 off your entire order - Buy white and blue widget before 2/15 and get a green widget for free. The point is that the rules are varied enough that they can't be coded into the app and they really need to best stored in the database where they can easily be changed on the fly--even if that means you have to have a developer write them. I know there is a way to create a java class in a running system on the fly, so that is one option. Using some sort of expression language like MVEL is another option. I just wanted to make sure there isn't some way to do this using Tapestry's capabilities that I'm overlooking. Specifically, is there a way to get some type of executable script into a Page or Service in a running app? Is this something Groovy can do, or does Groovy only work with Tapestry when it is compiled to byte code? Mark --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
