module com {
module wiley {
module compbooks {
module brose {
module chapter11 {

module office {

    enum Status { CANCELLED, PRINTED, ONLINE, OFFLINE, JAMMED, OUT_OF_PAPER };
    typedef long JobID;
    typedef string UserID;

    struct Job {
	JobID job_id;
	UserID user_id;
    };

    union PrinterStatus switch( Status )
    {
         case CANCELLED:
         case PRINTED: Job the_job;
         case OFFLINE: 
         case ONLINE: boolean dummy;
    };

    interface Printer 
    {
	typedef string Document;

	exception OffLine {};
	exception AlreadyPrinted {};
	exception UnknownJobID {};

	JobID print(in Document text, in UserID uid) 
	    raises (OffLine);

	void cancel(in JobID id, in UserID uid) 
	    raises (AlreadyPrinted, UnknownJobID);

	void setOffLine(in boolean flag);
    };


}; }; }; }; }; };