URI Patterns and pattern ordering

[Philip Johnson]

Greetings, Restletfarians,

Today I was implementing a handler for a POST method for a Users resource that
takes an email parameter such as:

  testapplication/[EMAIL PROTECTED]

I handled this using a router and a URI pattern, as follows:

  router.attach("/users?email={email}", UsersResource.class);

This works fine, but now I'm nervous about the case of multiple parameters. 
Let's say I want to add a timezone parameter for this user:

  testapplication/[EMAIL PROTECTED]&timezone=HST

I could handle this as follows:

  router.attach("/users?email={email}&timezone={timezone}", 
UsersResource.class);

But then I've hardwired the ordering and the following request would apparently
fail:

  testapplication/users?timezone=HST&[EMAIL PROTECTED]

I checked the JavaDoc for the Router class and it was not forthcoming on this
issue.  Could someone enlighten me as the appropriate way to handle parameters
in an order-independent fashion? 

Thanks,
Philip