/* * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */  package javax.print.attribute; import java.io.Serializable; /** * Class HashDocAttributeSet provides an attribute set which * inherits its implementation from class {@link HashAttributeSet * HashAttributeSet} and enforces the semantic restrictions of interface {@link * DocAttributeSet DocAttributeSet}. * <P> * * @author  Alan Kaminsky */public class HashDocAttributeSet extends HashAttributeSet    implements DocAttributeSet, Serializable {     private static final long serialVersionUID = -1128534486061432528L;     /**     * Construct a new, empty hash doc attribute set.     */    public HashDocAttributeSet() {        super (DocAttribute.class);    }     /**     * Construct a new hash doc attribute set,     * initially populated with the given value.     *     * @param  attribute  Attribute value to add to the set.     *     * @exception  NullPointerException     *     (unchecked exception) Thrown if <CODE>attribute</CODE> is null.     */    public HashDocAttributeSet(DocAttribute attribute) {        super (attribute, DocAttribute.class);    }     /**     * Construct a new hash doc attribute set,     * initially populated with the values from the given array.     * The new attribute set is populated by     * adding the elements of <CODE>attributes</CODE> array to the set in     * sequence, starting at index 0. Thus, later array elements may replace     * earlier array elements if the array contains duplicate attribute     * values or attribute categories.     *     * @param  attributes  Array of attribute values to add to the set.     *                     If null, an empty attribute set is constructed.     *     * @exception  NullPointerException     *  (unchecked exception)     * Thrown if any element of <CODE>attributes</CODE> is null.     */    public HashDocAttributeSet(DocAttribute[] attributes) {        super (attributes, DocAttribute.class);    }     /**     * Construct a new attribute set, initially populated with the     * values from the  given set where the members of the attribute set     * are restricted to the <code>DocAttribute</code> interface.     *     * @param  attributes set of attribute values to initialise the set. If     *                    null, an empty attribute set is constructed.     *     * @exception  ClassCastException     *     (unchecked exception) Thrown if any element of     * <CODE>attributes</CODE> is not an instance of     * <CODE>DocAttribute</CODE>.     */    public HashDocAttributeSet(DocAttributeSet attributes) {        super(attributes, DocAttribute.class);    } }