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* accompanied this code).
*
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/**
* Provides the principal classes and interfaces for the Java™ Print
* Service API. The Java Print Service API enables client and server
* applications to:
* <ul>
* <li>Discover and select print services based on their capabilities</li>
* <li>Specify the format of print data</li>
* <li>Submit print jobs to services that support the document type to be
* printed.</li>
* </ul>
*
* <h3>Print Service Discovery</h3>
* An application invokes the static methods of the abstract class
* {@link javax.print.PrintServiceLookup PrintServiceLookup} to locate print
* services that have the capabilities to satisfy the application's print
* request. For example, to print a double-sided document, the application first
* needs to find printers that have the double-sided printing capability.
* <p>
* The JDK includes {@code PrintServiceLookup} implementations that can locate
* the standard platform printers. To locate other types of printers, such as
* IPP printers or JINI printers, a print-service provider can write
* implementations of {@code PrintServiceLookup}. The print-service provider can
* dynamically install these {@code PrintServiceLookup} implementations using
* the {@link java.util.ServiceLoader} facility.
*
* <h3>Attribute Definitions</h3>
* The {@link javax.print.attribute} and {@link javax.print.attribute.standard}
* packages define print attributes, which describe the capabilities of a print
* service, specify the requirements of a print job, and track the progress of
* a print job.
* <p>
* The {@code javax.print.attribute} package describes the types of attributes
* and how they can be collected into sets. The
* {@code javax.print.attribute.standard} package enumerates all of the standard
* attributes supported by the API, most of which are implementations of
* attributes specified in the IETF Specification,
* <a href="http://www.ietf.org/rfc/rfc2911.txt"> RFC 2911 Internet Printing
* Protocol, 1.1: Model and Semantics</a>, dated September 2000. The attributes
* specified in {@code javax.print.attribute.standard} include common
* capabilities, such as: resolution, copies, media sizes, job priority, and
* page ranges.
*
* <h3>Document Type Specification</h3>
* The {@link javax.print.DocFlavor DocFlavor} class represents the print data
* format, such as JPEG or PostScript. A {@code DocFlavor} object consists of a
* MIME type, which describes the format, and a document representation class
* name that indicates how the document is delivered to the printer or output
* stream. An application uses the {@code DocFlavor} and an attribute set to
* find printers that can print the document type specified by the
* {@code DocFlavor} and have the capabilities specified by the attribute set.
*
* <h3>Using the API</h3>
* A typical application using the Java Print Service API performs these steps
* to process a print request:
* <ol>
* <li>Chooses a {@code DocFlavor}.</li>
* <li>Creates a set of attributes.</li>
* <li>Locates a print service that can handle the print request as
* specified by the {@code DocFlavor} and the attribute set.</li>
* <li>Creates a {@link javax.print.Doc Doc} object encapsulating the
* {@code DocFlavor} and the actual print data, which can take many forms
* including: a Postscript file, a JPEG image, a URL, or plain text.</li>
* <li>Gets a print job, represented by
* {@link javax.print.DocPrintJob DocPrintJob}, from the print service.</li>
* <li>Calls the print method of the print job.</li>
* </ol>
* The following code sample demonstrates a typical use of the Java Print
* Service API: locating printers that can print five double-sided copies of a
* Postscript document on size A4 paper, creating a print job from one of the
* returned print services, and calling print.
* <blockquote>
* <pre>{@code
* FileInputStream psStream;
* try {
* psStream = new FileInputStream("file.ps");
* } catch (FileNotFoundException ffne) {
* }
* if (psStream == null) {
* return;
* }
* DocFlavor psInFormat = DocFlavor.INPUT_STREAM.POSTSCRIPT;
* Doc myDoc = new SimpleDoc(psStream, psInFormat, null);
* PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
* aset.add(new Copies(5));
* aset.add(MediaSizeName.ISO_A4);
* aset.add(Sides.DUPLEX);
* PrintService[] services =
* PrintServiceLookup.lookupPrintServices(psInFormat, aset);
* if (services.length > 0) {
* DocPrintJob job = services[0].createPrintJob();
* try {
* job.print(myDoc, aset);
* } catch (PrintException pe) {}
* }
* }</pre>
* </blockquote>
* <P>
* Please note: In the javax.print APIs, a null reference parameter to methods
* is incorrect unless explicitly documented on the method as having a
* meaningful interpretation. Usage to the contrary is incorrect coding and may
* result in a run time exception either immediately or at some later time.
* IllegalArgumentException and NullPointerException are examples of typical and
* acceptable run time exceptions for such cases.
*
* @since 1.4
*/
package javax.print;