/*
 * @(#)HashPrintJobAttributeSet.java	1.3 01/12/03
 *
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */


package javax.print.attribute;

import java.io.Serializable;

/**
 * Class HashPrintJobAttributeSet provides an attribute set
 * which inherits its implementation from class {@link HashAttributeSet 
 * HashAttributeSet} and enforces the semantic restrictions of interface 
 * {@link PrintJobAttributeSet PrintJobAttributeSet}. 
 * <P>
 *
 * @author  Alan Kaminsky
 */
public class HashPrintJobAttributeSet extends HashAttributeSet
    implements PrintJobAttributeSet, Serializable {

    /**
     * Construct a new, empty hash print job attribute set. 
     */
    public HashPrintJobAttributeSet() {
	super(PrintJobAttribute.class);
    }

    /**
     * Construct a new hash print job 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 HashPrintJobAttributeSet(PrintJobAttribute attribute) {
	super(attribute, PrintJobAttribute.class);
    }
    
    /**
     * Construct a new hash print job 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 HashPrintJobAttributeSet(PrintJobAttribute[] attributes) {
	super (attributes, PrintJobAttribute.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>PrintJobAttribute</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>PrintJobAttribute</CODE>. 
     */
    public HashPrintJobAttributeSet(PrintJobAttributeSet attributes) {
	super(attributes, PrintJobAttribute.class);
    }   
}
