Hi all, I wanted to know how can we make a component restrictive within an another component.
As the best example for my situation here would be the jumpstart's tabs component. http://jumpstart.doublenegative.com.au/jumpstart7/examples/navigation/tabs . We have a <t:tabgroup> <t:sourcecodetab src="/web/src/main/java/jumpstart/web/pages/examples/navigation/Tabs.tml"/> </t:tabgroup> and I want to make a restriction saying that a tabgroup should contain only <t:tabs>. for example if I put <t:somethingelse></t:somethingelse> inside the <t:tabgroup> then i want an exception to be thrown saying <t:somethingelse> is not an instanceof tab. how do I make a check from the <t:tabgroup> that it contains instances of tab only and nothing else as beforeRender of the tabgroup we render the tabs into tracker and then comeback to tabgroup to render it from tracker to tml. I have seen the tapestry stich tabgroup example where we can chech from the child component whether it is under <t:tabgroup> component if not throw exception. http://tapestry-stitch.uklance.cloudbees.net/tabgroupdemo How to do it the other way round?
