1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright 2000-2013 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.ui;
import com.vaadin.data.BufferedValidatable;
import com.vaadin.data.Property;
import com.vaadin.ui.Component.Focusable;
/**
* TODO document
*
* @author Vaadin Ltd.
*
* @param T
* the type of values in the field, which might not be the same type
* as that of the data source if converters are used
*
* @author IT Mill Ltd.
*/
public interface Field<T> extends Component, BufferedValidatable, Property<T>,
Property.ValueChangeNotifier, Property.ValueChangeListener,
Property.Editor, Focusable {
/**
* Is this field required.
*
* Required fields must filled by the user.
*
* @return <code>true</code> if the field is required,otherwise
* <code>false</code>.
* @since 3.1
*/
public boolean isRequired();
/**
* Sets the field required. Required fields must filled by the user.
*
* @param required
* Is the field required.
* @since 3.1
*/
public void setRequired(boolean required);
/**
* Sets the error message to be displayed if a required field is empty.
*
* @param requiredMessage
* Error message.
* @since 5.2.6
*/
public void setRequiredError(String requiredMessage);
/**
* Gets the error message that is to be displayed if a required field is
* empty.
*
* @return Error message.
* @since 5.2.6
*/
public String getRequiredError();
/**
* An <code>Event</code> object specifying the Field whose value has been
* changed.
*
* @author Vaadin Ltd.
* @since 3.0
*/
@SuppressWarnings("serial")
public static class ValueChangeEvent extends Component.Event implements
Property.ValueChangeEvent {
/**
* Constructs a new event object with the specified source field object.
*
* @param source
* the field that caused the event.
*/
public ValueChangeEvent(Field source) {
super(source);
}
/**
* Gets the Property which triggered the event.
*
* @return the Source Property of the event.
*/
@Override
public Property getProperty() {
return (Property) getSource();
}
}
}
|
