PrintJobAttributeEvent


1   /*
2    * @(#)PrintJobAttributeEvent.java  1.6 03/12/19
3    *
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package javax.print.event;
9   
10  import javax.print.DocPrintJob  ;
11  import javax.print.attribute.AttributeSetUtilities  ;
12  import javax.print.attribute.PrintJobAttributeSet  ;
13  
14  /**
15   * Class PrintJobAttributeEvent encapsulates an event a PrintService
16   * reports to let the client know that one or more printing attributes for a 
17   * PrintJob have changed.
18   */
19  
20  public class PrintJobAttributeEvent extends PrintEvent   {
21  
22      private static final long serialVersionUID = -6534469883874742101L;
23  
24      private PrintJobAttributeSet   attributes;
25      
26      /**
27       * Constructs a PrintJobAttributeEvent object.
28       * @param source the print job generating  this event
29       * @param attributes the attribute changes being reported
30       * @throws IllegalArgumentException if <code>source</code> is
31       *         <code>null</code>.
32       */
33      public PrintJobAttributeEvent (DocPrintJob   source,
34                                     PrintJobAttributeSet   attributes)  {
35      super(source);
36  
37          this.attributes = AttributeSetUtilities.unmodifiableView(attributes);
38      }
39  
40  
41      /**
42       * Determine the Print Job to which this print job event pertains.
43       *
44       * @return  Print Job object.
45       */
46      public DocPrintJob   getPrintJob() {  
47  
48          return (DocPrintJob  ) getSource();
49      }
50  
51  
52      /**
53       * Determine the printing attributes that changed and their new values.
54       *
55       * @return  Attributes containing the new values for the print job
56       * attributes that changed. The returned set may not be modifiable.
57       */
58      public PrintJobAttributeSet   getAttributes() {
59  
60      return attributes;
61  
62      }
63  
64  }
65
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