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A free electronic book on...

Marco Ronchetti marco.ronchetti@unitn.it — Tue, 3 Dec 2013 8:17:00 +0100

Books on EJB >

A free electronic book on EJB 3.0:

Mastering EJB 3.0

A full understanding of the EJB model requires also knowledge of concepts described in the older version of EJB. Hence the following free electronic book is also strongly suggested:

Mastering EJB 2.1

Suggestions

Marco Ronchetti marco.ronchetti@unitn.it — Tue, 3 Dec 2013 7:40:00 +0100

Exam > Suggestions

Here you find a suggested template for the project report. You are free to use other schemas if you prefer.

Suggested template

To deploy your application on a separate Web Tier and Application Tier, read the following:

Comment on separate deployment of war and ejb-jar on different machines

Project and exam

Marco Ronchetti marco.ronchetti@unitn.it — Tue, 3 Dec 2013 7:26:00 +0100

Exam > Project and exam

PLEASE READ CAREFULLY THIS SECTION!

The exam consists in the demonstration of understanding and command of the technologies we examined in the course. This will happen through the discussion of a final project. The project is INDIVIDUAL: no joint projects.

The project consist in a web application, which MUST to be divided into multiple tiers. The application domain can be anything of your choice: there are NO CONSTRAINTS about the project application domain. Try to be creative... There is NO pre-approval of your project idea. The ONLY requirement is to comply with the technical specifications given here.

There must be a web tier (implemented using JEE technology), a business logic tier (implemented using EJB) and a persistency tier (implemented with a database and accessed through an EJB3 persistency layer. The BL tier MUST be composed by both stateless and stateful beans - justification for the choices will be asked. The student will have to solve the problem of how to split the state persistency between the web session and the application server, and will have to justify the choices. Sensible use of EJB design patterns is required.

The system should show an as clean as possible separation between content and presentation.

The presence or absence of transactions must be meaningfully justified.

Sensible use of other optional technologies (whether they were discussed in the course, like XSLT, or not discussed) is not requested but it is possible and, in case, will be positively evaluated (see below).

During the exam students are expected to run the application on their machine.

Students will be asked to describe and demonstrate their system. They can be asked to explain or modify portions of their code. Questions about other technologies discussed in the course (such as Remote Objects, XML, CDI) will be asked - even if they are not used in an explicit manner in the project.

Students are required to send their project in a zip file to marco.ronchetti@unitn.it at least THREE days before the exam date. The zip file should include the source code, configuration files, and a report describing the project. The report should briefly describe the domain, the allowed operations, the system architecture and the used patterns. UML should be used. A suggested report template is available (see below).

A standard, well done, basic project (e.g. a web commerce site with a classical cart), without any extra technology will give a maximum score of 27/30. To get a better score you need to use additional technologies (e.g. at least one among ajax, xslt, jsp-custom tags, a desktop client accessing the EJB layer...), and run the application server outside the IDE, separating the web server from the app server and making good use of JNDI (that is, using a Tomcat and a separate JBoss or Glassfish, possibly - even though not requested - on different machines) . Choosing an original application domain and keeping a meaningful blog (where the progress of the work, the problems encountered and the solutions found are reported) can yield extra points. A nice look and an attention to the user friendliness will be positively evaluated.

Failure to respond correctly to questions, conceptual shortcomings in the implementation, failures in the understanding the used technologies on in the ability of explaining the choices and poor reports will of course decrease the score.

Please note that in order to get a full score (30/30) everything must be right on your first attempt. If you fail the exam, or if you decide to re-take it because you're not satisfied with your score, you will get at maximum 28/30. The rationale of this choice is that in the real world you rarely have a second chance, so you must learn to do things right and to evaluate yourself beforehand. The other reason is that if project you present is flawed and I suggest you the fix, it is unfair that you get the full credit fo the final solution. Also, do not ask me any pre-evaluation of what you've done: that would be a mild form of cheating.

Dates

Marco Ronchetti marco.ronchetti@unitn.it — Tue, 26 Nov 2013 8:37:00 +0100

Exam > Dates

January 13, 2014

February 11, 2014

June 10, 2014t

July 31, 2014

September 11, 2014

Note: The most imp...

Marco Ronchetti marco.ronchetti@unitn.it — Sat, 21 Sep 2013 11:46:00 +0200

Course log >

Note:

The most important subtopics are in bold (this does not mean that the other ones are not important though!)
After every lecture, students are invited to review the list of concepts, and verify if they understood them.

21	Tue, Dec 17	HTML5 - Websockets ...	HTML5 WebSockets
20		EJB Patterns Please follow the lecture on line.	EJB Patterns
19	Tue, Dec 3	Transactions ...	Transactions
18	Fri, Nov 29	EJB 3 & Entities - part 2 Inheritance Relationships	Entities - 2
17	Tue, Nov 26	EJB 3 & Entities ORM Entities API Detached Entities	EJB3: same slides as last time Entities - 1
16	Fri, Nov 22	EJB Session Beans EJB 3 Beans Annotations APIs and code examples	same slides as last time
15	Tue, Nov 19	JNDI API and SPI Directory services JNDI APIs and sample code EJB 2 Stateful and stateless beans Home, remote and local interface XML Descriptor	JNDI & EJB 2
14	Fri, Nov 15	Context and Dependecy Injection Implementation of a simple CDI framework	Context and Dependecy Injection
13	Tue, Nov 12	Java Annotation and Reflection A concrete example The Hollywood principle: Inversion of Control Sorry, due to a mistake this part of the lecture was not recorded! Simple Factory Soliton Factory Method Abstract Factory	Annotation & Reflection: same slides as last time IoC-Factories
12	Fri, Nov 8	Java Annotation and Reflection Annotations The Reflection API: Class, Method, Field, Constructor	Annotation & Reflection
11	Tue, Nov 5	Java RMI Distributed Objects RMI: Stub and Skeleton A simple model for RMI The registry The semantics of parameter passing RMI/IIOP and CORBA	RMI
10	Fri, Oct 29	JSF - advanced topics Expression Language Navigation Validation AJAX support Lifecycle events An example: architecture of a Web Shop	JSF
9	Fri, Oct 25	JSF - Basics JSP Custom Tag Standard Library The JSF Model JSF Tag Libraries Expression Language basics Beans An example	JSF
8	Tue, Oct 18	Javascript Javascript basics Objects and arrays in Javascript The DOM - variables and methods for accessing it	Javascript
7	Tue, Oct 15	JSP Java Serialization The JSP model JSP: the lifecycle JSP: the main APIs JSP-Custom Tags	JSPs
6	Tue, Oct 8	Servlets Applets and their historical role Frameworks and callbacks Servlets: the lifecycle Servlets: the main APIs The state problem	Servlets
5	Fri, Oct 4	JAXP Using a SAX parser in Java Using a DOM Parser in Java Using an XSLT engine in Java XPathJ - JAXB An easier way to identify fragments in an XML document: XPath XPathJ: using XPAth from Java Object serialization XML-based serialization Using JAXB to serialize Java objects	JAXP XPathJ - JAXB
		STUDENTS MUST ENROLL IN THE QUESTION ANSWERING SYSTEM! For an explanation watch the first few minutes of the DTD lecture (Sept. 27)
4	Fri, Sept 27	XML-Schema Why XML Schema is better than DTD Built-in, simple, complex, named and anonymous datatypes Attributes XML - DTD notion of validity of an XML document DTD Meaning and Syntax Validating parsers basic notions of XHTML Namespaces again Notion of XSL transformations	DTD Slides XML-SCHEMA slides
3	Tue, Sept 24	XSL What are XSL Transformations XSL rules XSL default rules additional XSL syntax elements Examples of XSL transformations Homework! Look at the Zvon Tutorial for XSL	Slides
2	Fri, Sept 20	XML relation with SGML and HTML structure of an XML document notion of well-formedness XML as trees or as sequences Namespaces XML Parser introduction to SAX and DOM Notion of XSL transformations	Slides
1	Tue, Sept 17	Introduction to the course

Click here to access the ...

Marco Ronchetti marco.ronchetti@unitn.it — Sat, 21 Sep 2013 11:37:00 +0200

Videos and slides >

Click here to access the videos and the repository for the slides presented during the lectures

Students MUST to be famil...

Marco Ronchetti marco.ronchetti@unitn.it — Tue, 17 Sep 2013 8:30:00 +0200

Prerequirements >

Students MUST to be familiar with:

programming in Java
the concept of design patterns
object oriented modelling (e.g. UML)
accessing Databases from program code (i.e. JDBC)
basic networking and basic notions TCP-IP
working with the command-line (concepts of Path, Classpath, ability to excute commands from a shell as opposed to using GUI)
basic HTML