1/*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/**
27 * Provides interfaces to SAX2 facilities that
28 * conformant SAX drivers won't necessarily support.
29 *
30 * <p>
31 * See <a target='_top' href='http://www.saxproject.org'>http://www.saxproject.org</a>
32 * for more information about SAX.
33 *
34 * <p>
35 * This package is independent of the SAX2 core, though the functionality
36 * exposed generally needs to be implemented within a parser core.
37 * That independence has several consequences:
38 *
39 * <ul>
40 *
41 * <li>SAX2 drivers are <em>not</em> required to recognize these handlers.
42 * </li>
43 *
44 * <li>You cannot assume that the class files will be present in every SAX2
45 * installation.</li>
46 *
47 * <li>This package may be updated independently of SAX2 (i.e. new
48 * handlers and classes may be added without updating SAX2 itself).</li>
49 *
50 * <li>The new handlers are not implemented by the SAX2
51 * <code>org.xml.sax.helpers.DefaultHandler</code> or
52 * <code>org.xml.sax.helpers.XMLFilterImpl</code> classes.
53 * You can subclass these if you need such behavior, or
54 * use the helper classes found here.</li>
55 *
56 * <li>The handlers need to be registered differently than core SAX2
57 * handlers.</li>
58 *
59 * </ul>
60 *
61 * <p>This package, SAX2-ext, is a standardized extension to SAX2.  It is
62 * designed both to allow SAX parsers to pass certain types of information
63 * to applications, and to serve as a simple model for other SAX2 parser
64 * extension packages.  Not all such extension packages should need to
65 * be recognized directly by parsers, however.
66 * As an example, most validation systems can be cleanly layered on top
67 * of parsers supporting the standardized SAX2 interfaces.
68 *
69 * @since 1.4
70 */
71
72package org.xml.sax.ext;
73