/*

 * 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.event;

import javax.print.PrintService;

import javax.print.attribute.AttributeSetUtilities;

import javax.print.attribute.PrintServiceAttributeSet;

/**

 *

 * Class PrintServiceAttributeEvent encapsulates an event a

 * Print Service instance reports to let the client know of

 * changes in the print service state.

 */

public class PrintServiceAttributeEvent extends PrintEvent {

    private static final long serialVersionUID = -7565987018140326600L;

    private PrintServiceAttributeSet attributes;

    /**

     * Constructs a PrintServiceAttributeEvent object.

     *

     * @param source the print job generating  this event

     * @param attributes the attribute changes being reported

     * @throws IllegalArgumentException if <code>source</code> is

     *         <code>null</code>.

     */

    public PrintServiceAttributeEvent(PrintService source,

                                      PrintServiceAttributeSet attributes) {

        super(source);

        this.attributes = AttributeSetUtilities.unmodifiableView(attributes);

    }

    /**

     * Returns the print service.

     * @return  Print Service object.

     */

    public PrintService getPrintService() {

        return (PrintService) getSource();

    }

    /**

     * Determine the printing service attributes that changed and their new

     * values.

     *

     * @return  Attributes containing the new values for the service

     * attributes that changed. The returned set may be unmodifiable.

     */

    public PrintServiceAttributeSet getAttributes() {

        return attributes;

    }

}