/*
* @(#)DocPrintJob.java 1.10 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.print;
import javax.print.attribute.AttributeSet;
import javax.print.attribute.PrintJobAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.event.PrintJobAttributeListener;
import javax.print.event.PrintJobListener;
import javax.print.PrintException;
/**
*
* This interface represents a print job that can print a specified
* document with a set of job attributes. An object implementing
* this interface is obtained from a print service.
*
*/
public interface DocPrintJob {
/**
* Determines the {@link PrintService} object to which this print job
* object is bound.
*
* @return <code>PrintService</code> object.
*
*/
public PrintService getPrintService();
/**
* Obtains this Print Job's set of printing attributes.
* The returned attribute set object is unmodifiable.
* The returned attribute set object is a "snapshot" of this Print Job's
* attribute set at the time of the {@link #getAttributes()} method
* call; that is, the returned attribute set's object's contents will
* not be updated if this Print Job's attribute set's contents change
* in the future. To detect changes in attribute values, call
* <code>getAttributes()</code> again and compare the new attribute
* set to the previous attribute set; alternatively, register a
* listener for print job events.
* The returned value may be an empty set but should not be null.
* @return the print job attributes
*/
public PrintJobAttributeSet getAttributes();
/**
* Registers a listener for event occurring during this print job.
* If listener is null, no exception is thrown and no action is
* performed.
* If listener is already registered, it will be registered again.
* @see #removePrintJobListener
*
* @param listener The object implementing the listener interface
*
*/
public void addPrintJobListener(PrintJobListener listener);
/**
* Removes a listener from this print job.
* This method performs no function, nor does it throw an exception,
* if the listener specified by the argument was not previously added
* to this component. If listener is null, no exception is thrown and
* no action is performed. If a listener was registered more than once
* only one of the registrations will be removed.
* @see #addPrintJobListener
*
* @param listener The object implementing the listener interface
*/
public void removePrintJobListener(PrintJobListener listener);
/**
* Registers a listener for changes in the specified attributes.
* If listener is null, no exception is thrown and no action is
* performed.
* To determine the attribute updates that may be reported by this job,
* a client can call <code>getAttributes()/<code> and identify the
* subset that are interesting and likely to be reported to the
* listener. Clients expecting to be updated about changes in a
* specific job attribute should verify it is in that set, but
* updates about an attribute will be made only if it changes and this
* is detected by the job. Also updates may be subject to batching
* by the job. To minimise overhead in print job processing it is
* recommended to listen on only that subset of attributes which
* are likely to change.
* If the specified set is empty no attribute updates will be reported
* to the listener.
* If the attribute set is null, then this means to listen on all
* dynamic attributes that the job supports. This may result in no
* update notifications if a job can not report any attribute updates.
*
* If listener is already registered, it will be registered again.
* @see #removePrintJobAttributeListener
*
* @param listener The object implementing the listener interface
* @param attributes The attributes to listen on, or null to mean
* all attributes that can change, as determined by the job.
*/
public void addPrintJobAttributeListener(
PrintJobAttributeListener listener,
PrintJobAttributeSet attributes);
/**
* Removes an attribute listener from this print job.
* This method performs no function, nor does it throw an exception,
* if the listener specified by the argument was not previously added
* to this component. If the listener is null, no exception is thrown
* and no action is performed.
* If a listener is registered more than once, even for a different
* set of attributes, no guarantee is made which listener is removed.
* @see #addPrintJobAttributeListener
*
* @param listener The object implementing the listener interface
*
*/
public void removePrintJobAttributeListener(
PrintJobAttributeListener listener);
/**
* Prints a document with the specified job attributes.
* This method should only be called once for a given print job.
* Calling it again will not result in a new job being spooled to
* the printer. The service implementation will define policy
* for service interruption and recovery.
* When the print method returns, printing may not yet have completed as
* printing may happen asynchronously, perhaps in a different thread.
* Application clients which want to monitor the success or failure
* should register a PrintJobListener.
* <p>
* Print service implementors should close any print data streams (ie
* Reader or InputStream implementations) that they obtain
* from the client doc. Robust clients may still wish to verify this.
* An exception is always generated if a <code>DocFlavor</code> cannot
* be printed.
*
* @param doc The document to be printed. If must be a flavor
* supported by this PrintJob.
*
* @param attributes The job attributes to be applied to this print job.
* If this parameter is null then the default attributes are used.
* @throws PrintException The exception additionally may implement
* an interface that more precisely describes the cause of the
* exception
* <ul>
* <li>FlavorException.
* If the document has a flavor not supported by this print job.
* <li>AttributeException.
* If one or more of the attributes are not valid for this print job.
* </ul>
*/
public void print(Doc doc, PrintRequestAttributeSet attributes)
throws PrintException;
}
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