1 /*
   2  * Copyright (c) 2000, 2017, 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.attribute;
  27 
  28 import java.io.Serializable;
  29 
  30 /**
  31  * Class {@code HashDocAttributeSet} provides an attribute set which inherits
  32  * its implementation from class {@link HashAttributeSet HashAttributeSet} and
  33  * enforces the semantic restrictions of interface
  34  * {@link DocAttributeSet DocAttributeSet}.
  35  *
  36  * @author Alan Kaminsky
  37  */
  38 public class HashDocAttributeSet extends HashAttributeSet
  39     implements DocAttributeSet, Serializable {
  40 
  41     /**
  42      * Use serialVersionUID from JDK 1.4 for interoperability.
  43      */
  44     private static final long serialVersionUID = -1128534486061432528L;
  45 
  46     /**
  47      * Construct a new, empty hash doc attribute set.
  48      */
  49     public HashDocAttributeSet() {
  50         super (DocAttribute.class);
  51     }
  52 
  53     /**
  54      * Construct a new hash doc attribute set, initially populated with the
  55      * given value.
  56      *
  57      * @param  attribute attribute value to add to the set
  58      * @throws NullPointerException if {@code attribute} is {@code null}
  59      */
  60     public HashDocAttributeSet(DocAttribute attribute) {
  61         super (attribute, DocAttribute.class);
  62     }
  63 
  64     /**
  65      * Construct a new hash doc attribute set, initially populated with the
  66      * values from the given array. The new attribute set is populated by adding
  67      * the elements of {@code attributes} array to the set in sequence, starting
  68      * at index 0. Thus, later array elements may replace earlier array elements
  69      * if the array contains duplicate attribute values or attribute categories.
  70      *
  71      * @param  attributes array of attribute values to add to the set. If
  72      *         {@code null}, an empty attribute set is constructed.
  73      * @throws NullPointerException if any element of {@code attributes} is
  74      *         {@code null}
  75      */
  76     public HashDocAttributeSet(DocAttribute[] attributes) {
  77         super (attributes, DocAttribute.class);
  78     }
  79 
  80     /**
  81      * Construct a new attribute set, initially populated with the values from
  82      * the given set where the members of the attribute set are restricted to
  83      * the {@code DocAttribute} interface.
  84      *
  85      * @param  attributes set of attribute values to initialise the set. If
  86      *         {@code null}, an empty attribute set is constructed.
  87      * @throws ClassCastException if any element of {@code attributes} is not an
  88      *         instance of {@code DocAttribute}
  89      */
  90     public HashDocAttributeSet(DocAttributeSet attributes) {
  91         super(attributes, DocAttribute.class);
  92     }
  93 }