Konferencija Javantura Zagreb 2014 by HUJAK
Vaadin - thinking of U and I - by Peter Lehto
Vaadin (vaadin.com) je Java framework za rapidni razvoj visoko interaktivnih HTML5 web aplikacija na poslužitelju. On sakriva tehnologije prijenosa dokumenata i stanja (DOM, AJAX, JSON) i omogućuje da web aplikacije budu razvijene u Javi prema metafori desktop aplikacija. Vaadin iskorištava svu moć GWT-a, Java-to-JavaScript prevoditelja, pa je moguće razviti cijeli stog web aplikacija i nove komponente na strani klijenta bez napuštanja Java okruženja. Brzi razvoj olakšava veliki izbor komponenata i trenutni deployment na poslužitelj. Vaadin aplikacije koje se izvode na poslužitelju pružaju veliko povećanje sigurnosti, kao i povezivanje Vaadin sučelja na bilo koji postojeći backend sustav. U predavanju bit će prikazan pregled Vaadin 7.1 mogučnosti, pogled na Vaadin arhitekturu i što se zapravo događa iza kulisa frameworka, a bit će raspravljene i značajke koje donosi Vaadin 7.2.
14. Server-side RIA
DOM
Client Server
ViewHTML Page
over HttpResponse
Controller
Model
Parameters over
HttpRequest
DB
4
5
6
2
TerminalAdapter
TerminalAdapter
Automated by
the RIA framework
3
7
1
9
8
Handled by the framework
34. What kind of devices does your app support?
98.1%
3Desktop
browsers
Browsers developers expect to support in 2013
3.5 Browsers to support in 2012
IE 6/7 Safari Opera IE 8
6/7 8
14% 18% 36% 54%
Chrome
9 10
IE 9 IE 10 Firefox
79% 80% 94% 94%
Browsers developers expect to support in 2013
3.5 Browsers to support in 2012
IE 6/7 Safari Opera IE 8
6/7 8
14% 18% 36% 54%
Chrome
9 10
IE 9 IE 10 Firefox
79% 80% 94% 94%
p support?
98.1%
25.7%
Phones
36.1%
blets
Others
2.1%
“Since gwt is used ext
in the enterprise, this m
explain why tablets are m
popular than support for
phones”
Daniel
iPhoneAndroidWP 8
n UI for
of appstaken
numberpe.
Phones
36.1%
Tablets
Others
“Since gwt is used extensively
in the enterprise, this may
explain why tablets are more
popular than support for
phones”
Daniel
iPad
AndroidWindows 8
69. By Marko Grönroos
ABOUT VAADIN
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Getting Started with Vaadin
CONTENTS INCLUDE:
About Vaadin
Creating An Application
Components
Layout Components
Themes
Data Binding and more...
Vaadin is a server-side Ajax web application development
framework that allows you to build web applications just like
with traditional desktop frameworks, such as AWT or Swing. An
application is built from user interface components contained
hierarchically in layout components.
In the server-driven model, the application code runs on
a server, while the actual user interaction is handled by a
client-side engine running in the browser. The client-server
communications and any client-side technologies, such as
HTML and JavaScript, are invisible to the developer. As the
client-side engine runs as JavaScript in the browser, there is no
need to install plug-ins. Vaadin is released under the Apache
License 2.0.
Figure 1: Vaadin Client-Server Architecture
If the built-in selection of components is not enough, you can
Figure 2: Architecture for Vaadin Applications
Hot
Tip
You can get a reference to the application object
from any component attached to the application with
Event Listeners
In the event-driven model, user interaction with user interface
components triggers server-side events, which you can handle
Web
Browser
Client-Side
Engine
Java
Web
Server
Vaadin
UI
Components
Your
Java
Application
Web
Service
EJB
DB
Servlet Container
User
Application
Event
Listener
Data
Model
Application
Themes
Application
Resources
Default
Theme
File
Resources
External
Resources
Database
Data
Binding
Inherits Events Changes
AJAX Requests
Inherits
UI
Component
Java
Servlet
Application
Class
Web
Browser
Client-Side
Engine
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