public class UserPK implements java.io.Serializable 
{
    public boolean equals(Object other) 
    {
        if (! (other instanceof UserPK) ) return false;
        UserPK rhs = (UserPK) other;
        return fId.compareTo( rhs.fId ) == 0;
    }

    public int hashCode() { return fId.hashCode(); }
    public UserPK() { }
    public UserPK(String Id) { fId = Id; }

    public String fId;
}