|
1
3
4 package com.sun.j2ee.blueprints.bpcatalog.validator;
5
6 import java.util.*;
7 import java.util.regex.*;
8
9 import javax.faces.FactoryFinder;
10 import javax.faces.component.UIComponent;
11 import javax.faces.component.UIInput;
12 import javax.faces.context.FacesContext;
13 import javax.faces.application.FacesMessage;
14 import javax.faces.validator.Validator;
15 import javax.faces.validator.ValidatorException;
16 import javax.faces.component.StateHolder;
17
18 import javax.faces.application.ApplicationFactory;
19 import javax.faces.application.Application;
20
21
22
23
26
27 public class DateValidator implements Validator, StateHolder {
28
29
30 public static final String  DATE_INVALID_MESSAGE_ID =
31 "DateInvalid";
32
33 private String datePattern = null;
34 private boolean transientValue = false;
35
36 public DateValidator() {
37 super();
38 }
39
40
41 public DateValidator(String datePattern) {
42 super();
43 this.datePattern = datePattern;
44 }
45
46
47 public String getDatePatern() {
48
49 return datePattern;
50 }
51
52
53 public void setDatePattern(String datePattern) {
54 this.datePattern = datePattern;
55 }
56
57 public void validate(FacesContext context, UIComponent component,
58 Object inputValue) {
59
60 boolean valid = false;
61 String value = (String )inputValue;
62 try {
63 valid = Pattern.matches(datePattern, value);
64 } catch(PatternSyntaxException pse) {
65 System.out.println("Date:Validator: There is a problem with the regular expression!");
66 }
67 if (!valid) {
68 FacesMessage error = new FacesMessage("Date " + value +
69 " is invalid. Please enter a date conforming to " +
70 datePattern);
71 throw new ValidatorException(error);
72 }
73 }
74
75
76 public Object saveState(FacesContext context) {
77 Object values[] = new Object [1];
78 values[0] = datePattern;
79 return (values);
80 }
81
82
83 public void restoreState(FacesContext context, Object state) {
84 Object values[] = (Object []) state;
85 datePattern = (String ) values[0];
86 }
87
88
89 public boolean isTransient() {
90 return (this.transientValue);
91 }
92
93
94 public void setTransient(boolean transientValue) {
95 this.transientValue = transientValue;
96 }
97 }
98 |
Popular Tags |
Java API By Example, From Geeks To Geeks.