Activiti & Vaddin: A match made in heaven Frederik Heremans, Software Engineer, Alfresco Petter Holmström, Software Architect, Vaddin

1. Activiti + Vaadin:
A match made in heaven
Frederik Heremans
Software engieer, Alfresco
Petter Holmström
Software architect,Vaadin
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2. Background
What’s this all about?
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3. Devoxx Registration
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4. Devoxx Registration
• Most of you have used it
• Consists of two parts:
–Registration application for visitors
–Administration application for staff
• Vaadin UI
• Activiti backend
• Additional technologies:
–Hibernate for object persistence
–JSR-303 for data validation
–Spring to glue everything together
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5. So why are we here?
• The architecture turned out to be very effective to
work with
• The system was easy to fix
–Bugs could be fixed quickly after they were discovered
• The system was easy to refactor
–New features could be added quickly
• We want to show you some patterns and best
practices for working with Activiti and Vaadin
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6. But first...
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7. What is Activiti?
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8. What is Vaadin?
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13. Vaadin is a
UI framework
for desktop-like
web apps
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14. Vaadin is a
UI framework
for desktop-like
web apps
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15. New configs,
taglibs and
syntax!?!
JavaScript,
DOM, Applet,
plugins?
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16. New configs,
taglibs and
syntax!?!
No! {
JavaScript,
DOM, Applet,
plugins?
This is
Nothin Java.
g else
.
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18. Vaadin is like a
set of LEGOs
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21. JSP JSF JavaFX
JavaEE
JavaSE
Swing
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22. JSP JSF Vaadin JavaFX
JavaEE
JavaSE
Swing
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23. Architecture
Client 8
Server
9 7
TerminalAdapter
TerminalAdapter
HTML Page
over HttpResponse View 6
Automated by 5
DOM the RIA framework Model
Parameters over
HttpRequest Controller
1 4
3 DB
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24. Architecture
Client 8
Server
9 7
TerminalAdapter
TerminalAdapter
HTML Page
over HttpResponse View 6
Automated by 5
DOM the RIA framework Model
Handled by the framework Parameters over
HttpRequest Controller
1 4
3 DB
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25. simple
• forget the client-side
• synchronous
• server resources
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26. flexible
• all Java tools and
libraries
• any JVM language
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27. flexible
• all Java tools and
libraries
• any JVM language
Scala Groovy
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28. secure
• code stays in server
• less web services
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29. What can you
do with it?
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31. Web Applications!
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32. Let us tell you a
story...
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33. The Company
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34. The Process
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35. ... however, there
is a problem!
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36. Expenses are
skyrocketing!
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37. We need a change!
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38. Now let’s do it!
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39. Next Steps
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40. Getting the code
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41. Continuing with Activiti
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42. Getting Started with Vaadin
• Visit our website www.vaadin.com
• Read the Book of Vaadin
• Visit our booth!
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43. Questions?
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