/*
 * Copyright (c) 2009, 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.
 */

package javax.xml.stream.events;

import java.util.List;

/**
 * This is the top level interface for events dealing with DTDs
 *
 * @version 1.0
 * @author Copyright (c) 2009 by Oracle Corporation. All Rights Reserved.
 * @since 1.6
 */
public interface DTD extends XMLEvent {

    /**
     * Returns the entire Document Type Declaration as a string, including the
     * internal DTD subset. This may be null if there is not an internal subset.
     * If it is not null it must return the entire Document Type Declaration
     * which matches the doctypedecl production in the XML 1.0 specification
     *
     * @return the Document Type Declaration
     */
    String getDocumentTypeDeclaration();

    /**
     * Returns an implementation defined representation of the DTD. This method
     * may return null if no representation is available.
     *
     * @return the representation of the DTD
     */
    Object getProcessedDTD();

    /**
     * Return a List containing the notations declared in the DTD. This list
     * must contain NotationDeclaration events.
     *
     * @see NotationDeclaration
     * @return an unordered list of NotationDeclaration events
     */
    List<NotationDeclaration> getNotations();

    /**
     * Return a List containing the general entities, both external and
     * internal, declared in the DTD. This list must contain EntityDeclaration
     * events.
     *
     * @see EntityDeclaration
     * @return an unordered list of EntityDeclaration events
     */
    List<EntityDeclaration> getEntities();
}