I could be mistaken, but I think you'll find the "language", if you can
call it that, pleasantly dumb compared to OGNL. Let me disclaim once
more - you should consult the docs - but I don't believe there are any
operators at all. In templates you simply have 3 constructs:
1) Expansions. These are similar to what you find in ant (and maven?),
where expressions with in ${} are resolved depending on the binding prefix.
2) Binding prefixes. Things like "prop:" and "message:" instruct T5 to
either attempt to resolve a property or a message. There are several
default prefixes and you can write your own. If you saw fit to have
operators of some sort, my guess is you'd need to write a binding prefix
for it (see docs).
3) Property access. The default prefix for component parameters is
"prop:". Properties are resolved from the containing page or component,
and are expressed as: object.property. Say you want to print the email
of the logged in user; your page contains a property "user" that in turn
has a property "email". T5 uses bean naming conventions, so your page
must provide access to the "user" property via a method getUser(). For
it to resolve the "email" property on the user object, the user object
must have a method getEmail().
hope that helps.
chris
Peter Stavrinides wrote:
Hi all
Can anyone point me to some documentation on writing expressions in
tapestry templates. I am looking for some examples of operators and
general syntax.
Thanks
Peter
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