populating objects between webapps

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populating objects between webapps

Matthew Broadhead
if i have two webapps:
- directory
- file
they both access databases with the same names:
- directory
- file
in the directory database there is a table called user with the
following fields:
- id
- firstname
- secondname
in the file database there is a table called file with the following fields:
- id
- something
- userid
if i build a File @Entity which has a transient User object what is the
best way to populate those objects during the queries?

currently i am aiming to make a rest interface on directory and passing
all the userids from the File objects and returning the User objects. 
is the recommended way to do this?

Also, JAX-WS seems much better for passing objects between webapps as it
constructs the objects in the second project.  i have been using JAX-RS
and it seems i have to keep all the objects in a common jar file for use
in both projects.  is there a recommended method for passing objects
between the webapps? (i may be getting off topic here but any experience
you may have would be much appreciated)