/*

 * 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

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/*

 * This file is available under and governed by the GNU General Public

 * License version 2 only, as published by the Free Software Foundation.

 * However, the following notice accompanied the original version of this

 * file and, per its terms, should not be removed:

 *

 * Copyright (c) 2004 World Wide Web Consortium,

 *

 * (Massachusetts Institute of Technology, European Research Consortium for

 * Informatics and Mathematics, Keio University). All Rights Reserved. This

 * work is distributed under the W3C(r) Software License [1] 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.

 *

 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231

 */

package org.w3c.dom.ls;

import org.w3c.dom.traversal.NodeFilter;

/**

 *  <code>LSSerializerFilter</code>s provide applications the ability to

 * examine nodes as they are being serialized and decide what nodes should

 * be serialized or not. The <code>LSSerializerFilter</code> interface is

 * based on the <code>NodeFilter</code> interface defined in [<a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113'>DOM Level 2 Traversal and      Range</a>]

 * .

 * <p> <code>Document</code>, <code>DocumentType</code>,

 * <code>DocumentFragment</code>, <code>Notation</code>, <code>Entity</code>

 * , and children of <code>Attr</code> nodes are not passed to the filter.

 * The child nodes of an <code>EntityReference</code> node are only passed

 * to the filter if the <code>EntityReference</code> node is skipped by the

 * method <code>LSParserFilter.acceptNode()</code>.

 * <p> When serializing an <code>Element</code>, the element is passed to the

 * filter before any of its attributes are passed to the filter. Namespace

 * declaration attributes, and default attributes (except in the case when "

 * discard-default-content" is set to <code>false</code>), are never passed

 * to the filter.

 * <p> The result of any attempt to modify a node passed to a

 * <code>LSSerializerFilter</code> is implementation dependent.

 * <p> DOM applications must not raise exceptions in a filter. The effect of

 * throwing exceptions from a filter is DOM implementation dependent.

 * <p> For efficiency, a node passed to the filter may not be the same as the

 * one that is actually in the tree. And the actual node (node object

 * identity) may be reused during the process of filtering and serializing a

 * document.

 * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407'>Document Object Model (DOM) Level 3 Load

and Save Specification</a>.

 *

 * @since 1.5

 */

public interface LSSerializerFilter extends NodeFilter {

    /**

     *  Tells the <code>LSSerializer</code> what types of nodes to show to the

     * filter. If a node is not shown to the filter using this attribute, it

     * is automatically serialized. See <code>NodeFilter</code> for

     * definition of the constants. The constants <code>SHOW_DOCUMENT</code>

     * , <code>SHOW_DOCUMENT_TYPE</code>, <code>SHOW_DOCUMENT_FRAGMENT</code>

     * , <code>SHOW_NOTATION</code>, and <code>SHOW_ENTITY</code> are

     * meaningless here, such nodes will never be passed to a

     * <code>LSSerializerFilter</code>.

     * <br> Unlike [<a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113'>DOM Level 2 Traversal and      Range</a>]

     * , the <code>SHOW_ATTRIBUTE</code> constant indicates that the

     * <code>Attr</code> nodes are shown and passed to the filter.

     * <br> The constants used here are defined in [<a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113'>DOM Level 2 Traversal and      Range</a>]

     * .

     */

    public int getWhatToShow();

}