spring + hibernate: have configurable pk generator?

we open + hibernate webapp.

this webapp deployed twin separate prolongation sites. twin prolongation sites webapp beget chairman information parallel.

what i need do, certain persons generated twin separate prolongation sites have graphic pks, combine chairman information twin sites during any time.

a offer imprisonment imposed me pks fit long, i can't uuids.

what i'm perplexing change tide hibernate mapping, method s_person generator:

<hibernate-mapping default-cascade="save-update" auto-import="false">
    <class name="com.some.domain.person" abstract="true">
        <id name="id">
            <column name="person_id"/>
            <generator class="sequence">
                <param name="sequence">s_person</param>
            </generator>
        </id>
    ...
</hibernate-mapping>

into something configurable, person_id have the pks generated opposite sequences (maybe s_person_1 s_person_2) depending deployment site's open settlement files.

of course,

            <generator class="sequence">
                <param name="sequence">${sequencename}</param>
            </generator>

doesn't work, i have figure out something else... i speculation generator should indicate configurable bean spin points method another, nonetheless i can't figure that...

any ideas workaround?

thanks!