DocPrintJob (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

javax.print
Interface DocPrintJob

All Known Subinterfaces:

CancelablePrintJob, MultiDocPrintJob

public interface DocPrintJob

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.

Method Summary
void	addPrintJobAttributeListener(PrintJobAttributeListener listener, PrintJobAttributeSet attributes)           Registers a listener for changes in the specified attributes.
void	addPrintJobListener(PrintJobListener listener)           Registers a listener for event occurring during this print job.
PrintJobAttributeSet	getAttributes()           Obtains this Print Job's set of printing attributes.
PrintService	getPrintService()           Determines the PrintService object to which this print job object is bound.
void	print(Doc doc, PrintRequestAttributeSet attributes)           Prints a document with the specified job attributes.
void	removePrintJobAttributeListener(PrintJobAttributeListener listener)           Removes an attribute listener from this print job.
void	removePrintJobListener(PrintJobListener listener)           Removes a listener from this print job.

 

Method Detail

getPrintService

PrintService getPrintService()

Determines the PrintService object to which this print job object is bound.

Returns:

PrintService object.

getAttributes

PrintJobAttributeSet getAttributes()

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 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 getAttributes() 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.

Returns:

the print job attributes

addPrintJobListener

void addPrintJobListener(PrintJobListener listener)

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.

Parameters:

listener - The object implementing the listener interface

See Also:

removePrintJobListener(javax.print.event.PrintJobListener)

removePrintJobListener

void removePrintJobListener(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.

Parameters:

listener - The object implementing the listener interface

See Also:

addPrintJobListener(javax.print.event.PrintJobListener)

addPrintJobAttributeListener

void addPrintJobAttributeListener(PrintJobAttributeListener listener,
                                  PrintJobAttributeSet attributes)

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 getAttributes()/ 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.

Parameters:

listener - The object implementing the listener interface

attributes - The attributes to listen on, or null to mean all attributes that can change, as determined by the job.

See Also:

removePrintJobAttributeListener(javax.print.event.PrintJobAttributeListener)

void removePrintJobAttributeListener(PrintJobAttributeListener listener)

void print(Doc doc,
           PrintRequestAttributeSet attributes)
           throws PrintException