generate a user specific hash, based on some data (time, userid, etc)
store it with the user in your database and put the hash in a page
parameter. urlFor(Page.class, PageParameters) will generate the
appropriate url for your email.

Martijn

On Fri, Dec 19, 2008 at 10:24 AM, Vitaly Tsaplin
<[email protected]> wrote:
>   Hi there,
>
>   The simplest example is a link for accessing a user profile. It's
> unique and once clicked should cause opening a user profile. Or what
> even more interesting is the links that are generated for performing
> some specific actions like for a voting when the user by clicking on
> the link can vote and he/she is authorized only for performing this
> action.
>   Probably this subject was discussed already so just point me out if it is.
>
>   Vitaly
>
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