1 /*
   2  * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.print.event;
  27 
  28 import javax.print.PrintService;
  29 import javax.print.attribute.AttributeSetUtilities;
  30 import javax.print.attribute.PrintServiceAttributeSet;
  31 
  32 /**
  33  *
  34  * Class PrintServiceAttributeEvent encapsulates an event a
  35  * Print Service instance reports to let the client know of
  36  * changes in the print service state.
  37  */
  38 
  39 public class PrintServiceAttributeEvent extends PrintEvent {
  40 
  41     private static final long serialVersionUID = -7565987018140326600L;
  42 
  43     private PrintServiceAttributeSet attributes;
  44 
  45     /**
  46      * Constructs a PrintServiceAttributeEvent object.
  47      *
  48      * @param source the print job generating  this event
  49      * @param attributes the attribute changes being reported
  50      * @throws IllegalArgumentException if {@code source} is
  51      *         {@code null}.
  52      */
  53     public PrintServiceAttributeEvent(PrintService source,
  54                                       PrintServiceAttributeSet attributes) {
  55 
  56         super(source);
  57         this.attributes = AttributeSetUtilities.unmodifiableView(attributes);
  58     }
  59 
  60 
  61     /**
  62      * Returns the print service.
  63 
  64      * @return  Print Service object.
  65      */
  66     public PrintService getPrintService() {
  67 
  68         return (PrintService) getSource();
  69     }
  70 
  71 
  72     /**
  73      * Determine the printing service attributes that changed and their new
  74      * values.
  75      *
  76      * @return  Attributes containing the new values for the service
  77      * attributes that changed. The returned set may be unmodifiable.
  78      */
  79     public PrintServiceAttributeSet getAttributes() {
  80 
  81         return attributes;
  82     }
  83 
  84 }