blob: 5c20b9122cf945af6b367be0bd0ee08d18d8b3e2 (
plain)
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
|
/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.itmill.toolkit.tests.featurebrowser;
import com.itmill.toolkit.ui.Component;
import com.itmill.toolkit.ui.Form;
import com.itmill.toolkit.ui.Label;
import com.itmill.toolkit.ui.OrderedLayout;
import com.itmill.toolkit.ui.Panel;
import com.itmill.toolkit.ui.Select;
public class FeatureBuffering extends Feature {
private static final String INTRO_TEXT = ""
+ "IT Mill Toolkit data model provides interface for implementing "
+ "buffering in data components. The basic idea is that a component "
+ "reading their state from data source can implement "
+ "Buffered-interface, for storing the value internally. "
+ "Buffering provides transactional access "
+ "for setting data: data can be put to a component's buffer and "
+ "afterwards committed to or discarded by re-reding it from the data source. "
+ "The buffering can be used for creating interactive interfaces "
+ "as well as caching the data for performance reasons."
+ "<br /><br />Buffered interface contains methods for committing and discarding "
+ "changes to an object and support for controlling buffering mode "
+ "with read-through and write-through modes. "
+ "Read-through mode means that the value read from the buffered "
+ "object is constantly up to date with the data source. "
+ "Respectively the write-through mode means that all changes to the object are "
+ "immediately updated to the data source.";
public FeatureBuffering() {
super();
}
@Override
protected Component getDemoComponent() {
final OrderedLayout l = new OrderedLayout();
final Panel panel = new Panel();
panel.setCaption("Buffering");
l.addComponent(panel);
final Label label = new Label();
panel.addComponent(label);
label.setContentMode(Label.CONTENT_XHTML);
label.setValue(INTRO_TEXT);
// Properties
propertyPanel = new PropertyPanel(panel);
final Form ap = propertyPanel.createBeanPropertySet(new String[] {
"width", "height" });
final Select themes = (Select) propertyPanel.getField("style");
themes.addItem("light").getItemProperty(
themes.getItemCaptionPropertyId()).setValue("light");
themes.addItem("strong").getItemProperty(
themes.getItemCaptionPropertyId()).setValue("strong");
propertyPanel.addProperties("Panel Properties", ap);
setJavadocURL("data/Buffered.html");
return l;
}
@Override
protected String getExampleSrc() {
return null;
}
/**
* @see com.itmill.toolkit.tests.featurebrowser.Feature#getDescriptionXHTML()
*/
@Override
protected String getDescriptionXHTML() {
return null;
}
@Override
protected String getImage() {
return null;
}
@Override
protected String getTitle() {
return null;
}
}
|
