/*
 * Copyright (c) 2005, 2006, 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.
 *
 * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.
 */

package com.sun.xml.internal.org.jvnet.fastinfoset.sax;

import org.xml.sax.SAXException;

/** 
 * SAX2 extention handler to receive notification of encoding algorithm data.
 *
 * <p>This is an optional extension handler for SAX2. XML readers are not 
 * required to recognize this handler, and it is not part of core-only 
 * SAX2 distributions.</p>
 *
 * <p>This interface may be used with with a Fast Infoset
 * SAX parser to receive notification of encoding algorithm data specified 
 * in ITU-T Rec. X.891 | ISO/IEC 24824-1 (Fast Infoset) clause 10 and for 
 * application defined encoding algorithms specified as part of the 
 * initial vocabulary of a fast infoset document.<p>
 *
 * <p>To set the EncodingAlgorithmContentHandler for an XML reader, use the
 * {@link org.xml.sax.XMLReader#setProperty setProperty} method
 * with the property name
 * <code>URI TO BE DEFINED</code>
 * and an object implementing this interface (or null) as the value.
 * If the reader does not report primitive data types, it will throw a
 * {@link org.xml.sax.SAXNotRecognizedException SAXNotRecognizedException}</p>
 *
 * <p>To set the EncodingAlgorithmContentHandler for an Fast Infoset reader, use
 * {@link com.sun.xml.internal.org.jvnet.fastinfoset.sax.FastInfosetReader#setEncodingAlgorithmContentHandler 
 *  setEncodingAlgorithmContentHandler} method.<p>
 *
 * @see com.sun.xml.internal.org.jvnet.fastinfoset.sax.PrimitiveTypeContentHandler
 * @see com.sun.xml.internal.org.jvnet.fastinfoset.sax.FastInfosetReader
 * @see org.xml.sax.XMLReader
 */
public interface EncodingAlgorithmContentHandler {
    /**
     * Receive notification of encoding algorithm data as an array 
     * of byte.
     *
     * <p>The application must not attempt to read from the array
     * outside of the specified range.</p>
     *
     * <p>Such notifications will occur for a Fast Infoset SAX parser
     * when processing encoding algorithm data.<p>
     *
     * <p>The Parser will call the method of this interface to report each 
     * encoding algorithm data. Parsers MUST return all contiguous 
     * characters in a single chunk</p>
     *
     * <p>Parsers may return all contiguous bytes in a single chunk, or 
     * they may split it into several chunks providing that the length of 
     * each chunk is of the required length to successfully apply the 
     * encoding algorithm to the chunk.</p>
     *
     * @param URI the URI of the encoding algorithm
     * @param algorithm the encoding algorithm index
     * @param b the array of byte
     * @param start the start position in the array
     * @param length the number of byte to read from the array
     * @throws org.xml.sax.SAXException any SAX exception, possibly
     *            wrapping another exception
     * @see com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmIndexes
     */    
    public void octets(String URI, int algorithm, byte[] b, int start, int length)  throws SAXException;    

    /**
     * Receive notification of encoding algorithm data as an object.
     *
     * <p>Such notifications will occur for a Fast Infoset SAX parser
     * when processing encoding algorithm data that is converted from an 
     * array of byte to an object more suitable for processing.<p>
     * 
     * @param URI the URI of the encoding algorithm
     * @param algorithm the encoding algorithm index
     * @param o the encoding algorithm object
     * @throws org.xml.sax.SAXException any SAX exception, possibly
     *            wrapping another exception
     * @see com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmIndexes
     */    
    public void object(String URI, int algorithm, Object o)  throws SAXException;    
}
