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Java > Open Source Codes > org > mmbase > datatypes > processors > NodeNumber


1 /*
2
3 This software is OSI Certified Open Source Software.
4 OSI Certified is a certification mark of the Open Source Initiative.
5
6 The license (Mozilla version 1.0) can be read at the MMBase site.
7 See http://www.MMBase.org/license
8
9 */
10 package org.mmbase.datatypes.processors;
11
12 import org.mmbase.bridge.*;
13 import org.mmbase.datatypes.*;
14 import java.util.*;
15 import org.mmbase.util.logging.*;
16
17 /**
18  * If value is a node, returns it's number (as a String)
19  *
20  * @author Michiel Meeuwissen
21  * @version $Id: NodeNumber.java,v 1.1 2006/04/10 17:30:46 michiel Exp $
22  * @since MMBase-1.8
23  */
24
25 public class NodeNumber implements Processor {
26     private static final Logger log = Logging.getLoggerInstance(FormatDateTime.class);
27
28     private static final long serialVersionUID = 1L;
29
30     public Object JavaDoc process(Node node, Field field, Object JavaDoc value) {
31         if (value == null) return null;
32         if (value instanceof Node) {
33             return "" + ((Node) value).getNumber();
34         }
35         return value;
36     }
37
38     public String JavaDoc toString() {
39         return "node number";
40     }
41
42 }
43
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