/*
 * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
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 */


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);
 }

}