nodetypepattern.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: NodeTypePattern.java,v 1.3 2002/05/20 08:14:16 jstrachan Exp $
 */

package org.dom4j.rule.pattern;

import org.dom4j.Node;
import org.dom4j.rule.Pattern;


/** <p><code>NodeTypePattern</code> implements a Pattern which matches
  * any node of the given node type.
  *
  * @author <a href="mailto:[e-mail]">James Strachan</a>
  * @version $Revision: 1.3 $
  */
public class NodeTypePattern implements Pattern {
    
    /** A pattern which matches any Attribute node  */
    public static final NodeTypePattern ANY_ATTRIBUTE
        = new NodeTypePattern( Node.ATTRIBUTE_NODE );
    
    /** A pattern which matches any Comment  node  */
    public static final NodeTypePattern ANY_COMMENT
        = new NodeTypePattern( Node.COMMENT_NODE );
    
    /** A pattern which matches any Document node  */
    public static final NodeTypePattern ANY_DOCUMENT
        = new NodeTypePattern( Node.DOCUMENT_NODE );
    
    /** A pattern which matches any Element node  */
    public static final NodeTypePattern ANY_ELEMENT 
        = new NodeTypePattern( Node.ELEMENT_NODE );
    
    /** A pattern which matches any ProcessingInstruction node  */
    public static final NodeTypePattern ANY_PROCESSING_INSTRUCTION
        = new NodeTypePattern( Node.PROCESSING_INSTRUCTION_NODE );
    
    /** A pattern which matches any Text node  */
    public static final NodeTypePattern ANY_TEXT 
        = new NodeTypePattern( Node.TEXT_NODE );
    
    private short nodeType;

    
    public NodeTypePattern(short nodeType) {
        this.nodeType = nodeType;
    }

    public boolean matches( Node node ) {
        return node.getNodeType() == nodeType;
    }
    
    public double getPriority()  {
        return Pattern.DEFAULT_PRIORITY;
    }
    
    public Pattern[] getUnionPatterns() {
        return null;
    }

    public short getMatchType() {
        return nodeType;
    }

    public String getMatchesNodeName() {
        return null;
    }

}




/*
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 * ("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: NodeTypePattern.java,v 1.3 2002/05/20 08:14:16 jstrachan Exp $
 */