KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > tapestry > form > validator > MaxDate


1 // Copyright 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.form.validator;
16
17 import java.util.Date JavaDoc;
18
19 import org.apache.tapestry.form.IFormComponent;
20 import org.apache.tapestry.form.ValidationMessages;
21 import org.apache.tapestry.valid.ValidationConstraint;
22 import org.apache.tapestry.valid.ValidationStrings;
23 import org.apache.tapestry.valid.ValidatorException;
24
25 /**
26  * Validates that the object, a Date, is not after a set maximum.
27  *
28  * @author Howard Lewis Ship
29  * @since 4.0
30  */
31 public class MaxDate extends BaseValidator
32 {
33     private Date JavaDoc _maxDate;
34
35     public MaxDate()
36     {
37     }
38
39     public MaxDate(String JavaDoc initializer)
40     {
41         super(initializer);
42     }
43
44     public void validate(IFormComponent field, ValidationMessages messages, Object JavaDoc object)
45             throws ValidatorException
46     {
47         Date JavaDoc date = (Date JavaDoc) object;
48
49         if (date.after(_maxDate))
50             throw new ValidatorException(buildMessage(messages, field),
51                     ValidationConstraint.TOO_LARGE);
52
53     }
54
55     private String JavaDoc buildMessage(ValidationMessages messages, IFormComponent field)
56     {
57         return messages.formatValidationMessage(
58                 getMessage(),
59                 ValidationStrings.DATE_TOO_LATE,
60                 new Object JavaDoc[]
61                 { field.getDisplayName(), _maxDate });
62     }
63
64     public void setMaxDate(Date JavaDoc minDate)
65     {
66         _maxDate = minDate;
67     }
68
69 }
70
Popular Tags