001/* AttributeException.java --
002   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package javax.print;
040
041import javax.print.attribute.Attribute;
042
043/**
044 * <code>AttributeException</code> specifies two methods a specific
045 * subclass of {@link javax.print.PrintException} may implement to
046 * provide further information of printing errors if unsupported
047 * attribute classes or values of attributes are involved.
048 * <p>
049 * There exists no <code>PrintException</code> class implementing this 
050 * interface. Providing these extensions in <code>PrintException</code> 
051 * subclasses is left to the concrete print service implementation. 
052 * </p> 
053 * 
054 * @author Michael Koch (konqueror@gmx.de)
055 */
056public interface AttributeException
057{
058  /**
059   * Returns the unsupported printing attribute classes for a print service
060   * that does not support the attribute category at all. The returned 
061   * class instances are sublcasses of the base interface {@link Attribute}.
062   * 
063   * @return The unsupported attribute classes, or <code>null</code> if there
064   * are no such attribute classes.
065   */
066  Class[] getUnsupportedAttributes();
067  
068  /**
069   * Returns the unsupported attribute values of printing attributes a specific
070   * print service does support but not the particular provided value.
071   *   
072   * @return The unsupported attribute values, or <code>null</code> if there
073   * are no such attributes values.
074   */
075  Attribute[] getUnsupportedValues();
076}