001    /* AttributeException.java --
002       Copyright (C) 2004, 2005 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    
039    package javax.print;
040    
041    import 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     */
056    public 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    }