1 package org.seasar.cubby.validator.validators;
2
3 import org.seasar.cubby.validator.BaseValidator;
4 import org.seasar.cubby.validator.ValidationContext;
5 import org.seasar.framework.util.StringUtil;
6
7
8
9
10
11
12
13 public class RequiredValidator extends BaseValidator {
14
15
16
17
18 public RequiredValidator() {
19 this("valid.required");
20 }
21
22
23
24
25
26 public RequiredValidator(final String messageKey) {
27 this.setMessageKey(messageKey);
28 }
29
30 public String validate(final ValidationContext ctx) {
31 final Object value = ctx.getValue();
32 if (value instanceof String) {
33 String str = (String)value;
34 if (!StringUtil.isEmpty(str)) {
35 return null;
36 }
37 } else if (value != null) {
38 return null;
39 }
40 return getMessage(getPropertyMessage(ctx
41 .getName()));
42 }
43
44 }