you can "collapse your own" or use one of the third-party modules, such as tynamo tapestry-security . even if you are writing your own, it is a good idea to see how others have implemented it, so look at the source .
My first attempt to write my own security module made me create a class hierarchy for all of my components and pages (inheritance checks from security checks) that do not match the tapestry paradigm.
Unfortunately, for tapestries and fashionable tapestry modules, it seems fashionable to have rare documentation.