Book Review: “Java EE 7 Developer Handbook” by PACKT / Pilgrim

Posted in Java / JEE on November 26th, 2013 by Kai Wähner

Java EE 7 Developer Handbook is a book for experienced Java developers, published by PACKT. Author is Peter A. Pilgrim.

Content
The books introduces many important Java EE 7 specifications: CDI, EJB, JPA, Servlets, JMS, Bean Validation, JAX-RS and some other stuff such as WebSockets, HTML5 support and Java Transaction API. Each chapter contains an introduction, source code examples and explanations of most important features and configurations. Source code examples can be downloaded, too.

Cool side note
Introduces and uses Gradle as build system and Arquillian for writing integration tests.

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Avatar as Alternative for Java Server Faces (JSF) and JavaFX? – JavaOne 2012

Posted in Java / JEE, Web Framework on October 2nd, 2012 by Kai Wähner

Project Avatar was announced at JavaOne 2011. After no further information until JavaOne 2012, some new information was announced at this year’s conference. Even a little demo was shown in the keynote. Contrary to JavaFX, Avatar offers the realization of modern web applications without requiring a browser plugin. Web applications are realized with HTML5 and JavaScript (Nashorn implementation) on client-side, and Java EE backend on server-side. Avatar is also suitable for creating mobile applications (smartphone, tablet), because it does not depend on a browser plugin.

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Progress Report from the Java EE Conference “Confess 2012″ in Leogang, Salzburg (Austria)

Posted in IT Conferences on May 8th, 2012 by Kai Wähner

This week, I was at Confess 2012 in Leogang, Salzburg (Austria). Confess is an international conference for Java professionals in its fifth year, organized by IRIAN and the EJUG Austria. It is reasonably priced with 275 € for the two-day conference, and 500 € for the workshop day. The speaker lineup is very good with many well-known international speakers, such as JSF spec lead Edwuard Burns from Oracle America, Hazem Saleh from IBM Egypt, or Jürgen Höller from SpringSource.

Sessions

There were six main topics for this year’s conference:

  • Concurrent Programming
  • Mobile Development
  • Cloud Computing
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Pros and Cons – When to use a Portal and Portlets instead of just Java Web-Frameworks

Posted in Application Server, Java / JEE, Web Framework on October 7th, 2011 by Kai Wähner

I had to answer the following question: Shall we use a Portal and if yes, should it be Liferay Portal or Oracle Portal? Or shall we use just one or more Java web frameworks? This article shows my result. I had to look especially at Liferay and Oracle products, nevertheless the result can be used for other products, too. The short answer: A Portal makes sense only in a few use cases, in the majority of cases you should not use one. In my case, we will not use one.

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When to use Spring Roo?

Posted in Application Server, Cloud, Java / JEE, Web Framework on April 5th, 2011 by Kai Wähner

In this article, I will tell you about my experiences with Spring Roo. I will give recommendations when to use Spring Roo and when not to use it (yet).

What is Spring Roo?

“Spring Roo is a lightweight developer tool that makes it fast and easy to deliver instant results. Best of all, you code 100% in Java and get to reuse all your existing Java knowledge, skills and experience. You’ll like it – and have plenty of fun too!” (http://www.springsource.org/roo)
Many introductory articles exist already, just use Google if you do not know Spring Roo yet. In a nutshell: Spring Roo is a Java-based tool (using the SpringSource Tool Suite which is based on Eclipse). It uses AspectJ to simulate many features of Grails and other frameworks with dynamic languages to improve the developer experience.

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Categorization and Comparison of popular Web-Frameworks in the Java / JVM Environment

Posted in Java / JEE, Web Framework on December 30th, 2010 by Kai Wähner

Categorization of Web-Frameworks in the Java Environment

The following article shows a categorization of Java / JVM web-frameworks, considering different types of web applications. The intention is to give an overview, not to start a flame war.

Motivation

An uncountable number of web-frameworks exists in the Java environment. If you visit IT conferences or google for comparisons, almost always you find a discussion about the advantages and disadvantages. Often, a flame war is the consequence, each guy likes or dislikes a specific framework. Thus, a neutral comparison, which helps to choose the one which fits best for your requirements, is rare.

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SOA / Cloud Certification of „soaschool.com“ (SOACP) by Thomas Erl or Sun / Oracle Java Enterprise (JEE) Certification?

Posted in Cloud, IT Certifications, Java / JEE, SOA on October 5th, 2010 by Kai Wähner

SOA / Cloud Certification of „soaschool.com“ (SOACP) by Thomas Erl or Sun / Oracle Java Enterprise (JEE) Certification?

Which one should I do?

What IT certification should I do next? This is what I wondered within the last weeks, after I passed the SCJP 6 successfully some months ago. I surfed the internet a lot to find information about possible IT certifications.

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Report: Herbstcampus 2010 (IT-Conference in Nuremberg) about Java, JEE, .NET and SOA

Posted in IT Conferences, Java / JEE on September 15th, 2010 by Kai Wähner

Herbstcampus 2010

I was at the Herbstcampus 2010 in Nuremberg, that is a four-day IT conference. The main topics consist of Java, JEE, .NET, Agile Development and SOA. Although, prominent speakers are missing, many very good and interesting sessions were available. Here you can find more information: Herbstcampus.

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10 interesting Statements of Adam Bien about the Java Enterprise Edition 6 (JEE 6)

Posted in Application Server, ESB, Java / JEE on September 10th, 2010 by Kai Wähner

Yesterday, I visited the one-day conference “DOAG SIG Java”, because I presented about applicability and limits of Java Server Faces 2.0 (JSF 2.0). The main subject was the Java Enterprise Edition 6 (JEE 6). I wrote a report about it in another blog entry: One-Day Conference “DOAG SIG Java 2010″ about Java Enterprise Edition (JEE) 6.

The final track included a live demo of Adam Bien, a well-known JEE expert, author and speaker (also involved in the JEE specs). A very nice “live show” of the JEE 6 features!
The participants (including me) asked a lot of questions crititcally, Adam Bien always had very good answers and explanations because of his excessive experiences with Java technologies for several years.

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