java/11 : java.desktop/javax/print/package-info.java

javax.print
https://openjdk.java.net/
GPLv2 + Classpath Exception
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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:

  Discover and select print services based on their capabilities
  
Specify the format of print data
  
Submit print jobs to services that support the document type to be
  printed.

Print Service Discovery
 An application invokes the static methods of the abstract class 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.  The JDK includes 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 PrintServiceLookup. The print-service provider can dynamically install these PrintServiceLookup implementations using the ServiceLoader facility. 
Attribute Definitions
 The attribute and 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.  The javax.print.attribute package describes the types of attributes and how they can be collected into sets. The 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, RFC 2911 Internet Printing
Protocol, 1.1: Model and Semantics, dated September 2000. The attributes specified in javax.print.attribute.standard include common capabilities, such as: resolution, copies, media sizes, job priority, and page ranges. 
Document Type Specification
 The DocFlavor class represents the print data format, such as JPEG or PostScript. A 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 DocFlavor and an attribute set to find printers that can print the document type specified by the DocFlavor and have the capabilities specified by the attribute set. Using the API
A typical application using the Java Print Service API performs these steps
to process a print request:

  Chooses a DocFlavor. 
Creates a set of attributes.
  
Locates a print service that can handle the print request as specified by the DocFlavor and the attribute set. 
Creates a Doc object encapsulating the DocFlavor and the actual print data, which can take many forms including: a Postscript file, a JPEG image, a URL, or plain text. 
Gets a print job, represented by DocPrintJob, from the print service. 
Calls the print method of the print job.

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.


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) {}
 }


 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/**
 * Provides the principal classes and interfaces for the Java&trade; 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>Specify the format of print data
 *   <li>Submit print jobs to services that support the document type to be
 *   printed.
 * </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>Creates a set of attributes.
 *   <li>Locates a print service that can handle the print request as specified
 *   by the {@code DocFlavor} and the attribute set.
 *   <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 {@code URL}, or plain text.
 *   <li>Gets a print job, represented by
 *   {@link javax.print.DocPrintJob DocPrintJob}, from the print service.
 *   <li>Calls the print method of the print job.
 * </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 {@code javax.print} APIs, a {@code 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. {@code IllegalArgumentException} and {@code NullPointerException}
 * are examples of typical and acceptable run time exceptions for such cases.
 *
 * @since 1.4
 */
package javax.print;
/

java/ 11/ java.desktop/javax/print/package-info.java

Print Service Discovery

Attribute Definitions

Document Type Specification

Using the API
