PrintServiceAttributeEvent


1   /*
2    * @(#)PrintServiceAttributeEvent.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 java.util.List  ;
11  import javax.print.PrintService  ;
12  import javax.print.attribute.AttributeSetUtilities  ;
13  import javax.print.attribute.PrintServiceAttributeSet  ;
14  
15  /**
16   *
17   * Class PrintServiceAttributeEvent encapsulates an event a
18   * Print Service instance reports to let the client know of
19   * changes in the print service state.
20   */
21  
22  public class PrintServiceAttributeEvent extends PrintEvent   {
23  
24      private static final long serialVersionUID = -7565987018140326600L;
25  
26      private PrintServiceAttributeSet   attributes;
27  
28      /**
29       * Constructs a PrintServiceAttributeEvent object.
30       *
31       * @param source the print job generating  this event
32       * @param attributes the attribute changes being reported
33       * @throws IllegalArgumentException if <code>source</code> is
34       *         <code>null</code>.
35       */
36      public PrintServiceAttributeEvent(PrintService   source,
37                                        PrintServiceAttributeSet   attributes) {
38  
39          super(source);
40          this.attributes = AttributeSetUtilities.unmodifiableView(attributes);
41      }
42  
43  
44      /**
45       * Returns the print service.
46  
47       * @return  Print Service object.
48       */
49      public PrintService   getPrintService() {
50   
51          return (PrintService  ) getSource();
52      }
53  
54  
55      /**
56       * Determine the printing service attributes that changed and their new
57       * values.
58       *
59       * @return  Attributes containing the new values for the service
60       * attributes that changed. The returned set may be unmodifiable.
61       */
62      public PrintServiceAttributeSet   getAttributes() {
63  
64      return attributes;
65      }
66  
67  }
68
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