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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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*
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package javax.print;
/**
* This interface is used by a printing application to cancel a
* print job. This interface extends {@link DocPrintJob}. A
* DocPrintJob
implementation returned from a print
* service implements this interface if the print job can be
* cancelled. Before trying to cancel
* a print job, the client needs to test if the
* DocPrintJob
object returned from the print service
* actually implements this interface. Clients should never assume
* that a DocPrintJob
implements this interface. A
* print service might support cancellation only for certain types
* of print data and representation class names. This means that
* only some of the DocPrintJob
objects returned from
* a service will implement this interface.
*
* Service implementors are encouraged to implement this optional interface * and to deliver a javax.print.event.PrintJobEvent.JOB_CANCELLED event * to any listeners if a job is successfully cancelled with an * implementation of this interface. Services should also note that an * implementation of this method may be made from a separate client thread * than that which made the print request. Thus the implementation of * this interface must be made thread safe. */ public interface CancelablePrintJob extends DocPrintJob { /** * Stops further processing of a print job. *
* If a service supports this method it cannot be concluded that * job cancellation will always suceeed. A job may not be able to be * cancelled once it has reached and passed some point in its processing. * A successful cancellation means only that the entire job was not * printed, some portion may already have printed when cancel returns. *
* The service will throw a PrintException if the cancellation did not * succeed. A job which has not yet been submitted for printing should * throw this exception. * Cancelling an already successfully cancelled Print Job is not * considered an error and will always succeed. *
* Cancellation in some services may be a lengthy process, involving * requests to a server and processing of its print queue. Clients * may wish to execute cancel in a thread which does not affect * application execution. * @throws PrintException if the job could not be successfully cancelled. */ public void cancel() throws PrintException; }