|
1
4 package dwr;
5
6 import org.wings.session.Session;
7 import org.wings.session.SessionManager;
8 import org.wings.externalizer.ExternalizedResource;
9 import org.wings.event.SRequestEvent;
10 import org.wings.event.SRequestListener;
11 import org.wings.*;
12 import org.wings.resource.DefaultURLResource;
13 import org.wings.header.Script;
14 import org.wings.script.JavaScriptListener;
15 import org.wings.text.SAbstractFormatter;
16
17 import javax.servlet.http.HttpServletResponse  ;
18 import javax.servlet.http.HttpServletRequest ;
19 import java.text.ParseException ;
20 import java.text.DateFormat ;
21 import java.text.NumberFormat ;
22 import java.io.IOException ;
23
24
28 public class DWRExample
29 {
30 private SFormattedTextField dateTextField;
31 private SFormattedTextField numberTextField;
32 private SButton button;
33 private SFrame frame;
34
35 public DWRExample() throws IOException {
36 dateTextField = new SFormattedTextField(new DateFormatter());
37 dateTextField.setName("dateTextField");
38
39 numberTextField = new SFormattedTextField(new NumberFormatter());
40 numberTextField.setName("numberTextField");
41
42 button = new SButton("submit");
43
44 SForm form = new SForm();
45 form.setLayout(new STemplateLayout(SessionManager.getSession().getServletContext().getRealPath("/template/content.thtml")));
46 form.add(dateTextField, "dateTextField");
47 form.add(numberTextField, "numberTextField");
48 form.add(button, "submit");
49
50 frame = new SFrame("DWRExample example");
51 frame.getContentPane().add(form);
52 frame.show();
53 frame.addHeader(new Script("text/javascript", new DefaultURLResource("../dwr/engine.js")));
54 }
55
56 public static class DateFormatter extends DWRFormatter {
57 DateFormat format = DateFormat.getDateInstance(DateFormat.SHORT, SessionManager.getSession().getLocale());
58
59 public Object stringToValue(String text) throws ParseException {
60 System.out.println("text = '" + text + "'");
61 if (text == null || text.trim().length() == 0)
62 return null;
63 else
64 return format.parse(text.trim());
65 }
66
67 public String valueToString(Object value) throws ParseException {
68 if (value == null)
69 return "";
70 else
71 return format.format(value);
72 }
73
74 public String validate(String text) {
75 try {
76 String s = valueToString(stringToValue(text));
77 System.out.println("return = '" + s + "'");
78 return s;
79 }
80 catch (ParseException e) {
81 return null;
82 }
83 }
84 }
85
86 public static class NumberFormatter extends DWRFormatter {
87 NumberFormat format = NumberFormat.getNumberInstance(SessionManager.getSession().getLocale());
88
89 public Object stringToValue(String text) throws ParseException {
90 if (text == null || text.trim().length() == 0)
91 return null;
92 else
93 return format.parse(text.trim());
94 }
95
96 public String valueToString(Object value) throws ParseException {
97 if (value == null)
98 return "";
99 else
100 return format.format(value);
101 }
102
103 public String validate(String text) {
104 try {
105 return valueToString(stringToValue(text));
106 }
107 catch (ParseException e) {
108 return null;
109 }
110 }
111 }
112 }
113 |
Popular Tags |
Java API By Example, From Geeks To Geeks.