visitor.java

Java的面向对象数据库系统的源代码

/*
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 *
 * $Id: Visitor.java,v 1.3 2003/06/10 16:18:32 per_nyfelt Exp $
 */

package org.dom4j;

/** <p><code>Visitor</code> is used to implement the <code>Visitor</code>
  * pattern in DOM4J.
  * An object of this interface can be passed to a <code>Node</code> which will
  * then call its typesafe methods.
  * Please refer to the <i>Gang of Four</i> book of Design Patterns
  * for more details on the <code>Visitor</code> pattern.</p>
  *
  * <p> This
  * <a href="http://rampages.onramp.net/~huston/dp/patterns.html">article</a>
  * has further discussion on design patterns and links to the GOF book.
  * This <a href="http://rampages.onramp.net/~huston/dp/visitor.html">link</a>
  * describes the Visitor pattern in detail.
  * </p>
  *
  * @author <a href="mailto:[e-mail]">James Strachan</a>
  * @version $Revision: 1.3 $
  */
public interface Visitor {

    /** <p>Visits the given <code>Document</code></p>
      *
      * @param document is the <code>Document</code> node to visit.
      */
    public void visit(Document document);

    /** <p>Visits the given <code>DocumentType</code></p>
      *
      * @param documentType is the <code>DocumentType</code> node to visit.
      */
    public void visit(DocumentType documentType);

    /** <p>Visits the given <code>Element</code></p>
      *
      * @param node is the <code>Element</code> node to visit.
      */
    public void visit(Element node);

    /** <p>Visits the given <code>Attribute</code></p>
      *
      * @param node is the <code>Attribute</code> node to visit.
      */
    public void visit(Attribute node);

    /** <p>Visits the given <code>CDATA</code></p>
      *
      * @param node is the <code>CDATA</code> node to visit.
      */
    public void visit(CDATA node);

    /** <p>Visits the given <code>Comment</code></p>
      *
      * @param node is the <code>Comment</code> node to visit.
      */
    public void visit(Comment node);

    /** <p>Visits the given <code>Entity</code></p>
      *
      * @param node is the <code>Entity</code> node to visit.
      */
    public void visit(Entity node);

    /** <p>Visits the given <code>AbstractNamespace</code></p>
      *
      * @param namespace is the <code>Namespace</code> node to visit.
      */
    public void visit(Namespace namespace);

    /** <p>Visits the given <code>ProcessingInstruction</code>
     * </p>
     *
     * @param node is the <code>ProcessingInstruction</code> node to visit.
     */
    public void visit(ProcessingInstruction node);

    /** <p>Visits the given <code>Text</code>
     * </p>
     *
     * @param node is the <code>Text</code> node to visit.
     */
    public void visit(Text node);

}




/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "DOM4J" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of MetaStuff, Ltd.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "DOM4J"
 *    nor may "DOM4J" appear in their names without prior written
 *    permission of MetaStuff, Ltd. DOM4J is a registered
 *    trademark of MetaStuff, Ltd.
 *
 * 5. Due credit should be given to the DOM4J Project
 *    (http://dom4j.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * $Id: Visitor.java,v 1.3 2003/06/10 16:18:32 per_nyfelt Exp $
 */