I, along with Alexis's help, delivered a Java EE 6 hands-on lab to a
packed room of about 40+ attendees at Devoxx 2011. The lab was derived from the
OTN
Developer Days 2012 version but added lot more content to
showcase several Java EE 6 technologies. The problem statement from
the lab document states:
This hands-on lab builds a
typical 3-tier Java EE 6 Web application that retrieves customer
information from a database and displays it in a Web page. The
application also allows new customers to be added to the database
as well. The string-based and type-safe queries are used to query
and add rows to the database. Each row in the database table is
published as a RESTful resource and is then accessed
programmatically. Typical design patterns required by a Web
application like validation, caching, observer, partial page
rendering, and cross-cutting concerns like logging are explained
and implemented using different Java EE 6 technologies.
The lab covered Java Persistence API 2, Servlet 3, Enterprise
JavaBeans 3.1, JavaServer Faces 2, Java API for RESTful Web Services
1.1, Contexts and Dependency Injection 1.0, and Bean Validation 1.0
over 47 pages of detailed self-paced
instructions. Here is the complete Table of Contents:
The lab can be downloaded from
here and requires only NetBeans IDE "All" or "Java EE"
version, which includes GlassFish anyway. All the feedback received
from the lab has been incorporated in the instructions and bugs
filed (Updated 49559,
205232,
205248,
205256).
80% of the attendees could easily complete the lab and some even
completed in much less than 3 hours. That indicates that either more
content needs to be added to the lab or the intellectual level of
the attendees at the conference was pretty high. I think the lab has
enough content for 3 hours but we moved at a much more faster pace
so I conclude on the latter. Truly a joy to conduct a lab to 40
Devoxxians!
Another related lab that might be handy for folks is "Develop,
Deploy, and Monitor your Java EE 6 applications using GlassFish 3.1
Cluster". It explains how:
Create a 2-instance GlassFish cluster
Front-end with a Web server and a load balancer
Demonstrate session replication and fail over
Monitor the application using JavaScript
The complete lab
instructions and source
code are available and you can try them.
I plan to continue evolving the contents for the Java EE 6 hands-on
lab to cover more technologies and features and will announce them
on this blog. Let me know on what else would you like to see in the
future versions.
