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Databases

Using the Java 8 Date Time Classes with JPA! With the Java 8 SE release, developers get a splendid new best-in-class Date-Time API. Wouldn't it be nice if you could use it with JPA? Not so fast. JPA and for that matter JDBC know nothing about the new classes, and if you use them in your entities, JPA will map them to BLOBs in your database by default. This happens in DDL or database creation, in...
on Jun 17, 2014
Release the newest version of the framework to persist objects in Apache Cassandra in easy way. Among improvement is the JPA annotations, also JPQL.   JCassandra jCassandra=persistence.createJCassandra("select * from Person"); List<Person> persons=jCassandra.getResultList(); table 1: sample using JPQL in Easy-Cassandra Easy-Cassandra 1.0.8 Easy-Cassandra 1.0...
on Apr 21, 2012
in JPA it is possible to map String-data to enumerated values. But you are limited to Strings that are legal to be used in enum-types. E.g. using '-' or plain numbers will not work. An enum using such characters will not compile: public enum ThisWillNotCompile {   VALUE,   123,   hello-world;} Thus JPA doesn't allow to map such values to enum-types (in fact it's not...
on Aug 24, 2011

EJB

I'm expanding on an earlier post where I explained how to deploy JAX-RS Web Services to the Oracle Cloud. In that entry the web service simply returned a hard-coded "Hello World". In reality, you most likely want your web service to expose something more meaningful. In this post I'm going to expand the HelloJerseyApp to display the results from a table, which I'll expose using a JPA...
on Aug 30, 2013
The Enterprise Architectures for Java EE Weighting Survey ends this Friday, June 25. Kate Jones of Oracle recently talked about the survey and its purpose: We are looking to make improvements to our Java Enterprise Architect course and certification to support Java EE 6. The result of this survey will allow us to better align our Java EE architect course and certification with the role of the...
on Jun 23, 2010
Content available at: http://blogs.sun.com/arungupta/entry/totd_137_asynchronous_ejb_a
on May 19, 2010
I decided to write down the answer for some questions which my book's readers email me or ask me via twitter in my weblog so everyone can benefit from the answers. Here is the answer to the first question which involves custom security realms. GlassFish supports 5 types of security realms out of the box which are sd follow: File Realm: Usefull for development and testing purposes. GlassFish...
on May 18, 2010
Java EE Security refcard is available for download. This refcard covers Java EE 6 security and discuss how each application server supports the specs. The refcard covers authentication, authorization, and transport security in Web Application, EJB application and web services by introducing the concept and the related annotations and deployment descriptors which help us realize the concept....
on May 17, 2010
Please use the following articles while I am updating this entry  How to have your Own CA and configure Glassfish and your clients for mutual authentication? How to have your Own CA and configure Glassfish and your clients for mutual authentication?, Part II Please post any comment or question here so we can have one main reference for this. var gaJsHost = (("https:" == document.location....
on May 13, 2010
On April 28th, 2010, we will be kicking off the first phase of FESI's research.  This where we set up the project, and start to get our hands dirty. Attached is the flyer we will use to promote FESI and what we're trying to accomplish.  Hopefully it will help us get the word out to the local community. Also as the kickoff, we'll be participating with a networking group that meets...
on Apr 27, 2010
  Learning GlassFish v3 Command Line Administration Interface (CLI) Terminals and consoles was one of the earliest types of communication interfaces between a system administrator and the system administration layer. Due to this long time presence,  command line administration consoles become one the most utilized administration channel for configuring different software ranging from database...
on Apr 27, 2010
Here is an example of yet another hybrid (OSGi + Java EE) application. This is a complete JMS consumer/producer example using OSGi and GlassFish. You can download the complete sample from here. How to use the sample: 1. Download <a href="http://weblogs.java.net/sites/default/files/osgi-jms-mdb-1.zip">osgi-jms-mdb-1.zip</a> and unzip it.2. cd osgi-jms-mdb-1/3. mvn clean...
on Apr 22, 2010
I will wrap up my experience at eclipsecon. This was my first time at eclipsecon. Folks who had been here earlier told me that this year there was a lot of topics around eclipse runtime projects – so the focus has shifted from tools to runtime. Overall I liked eclipsecon. My topic, OSGi & Java EE in GlassFish, was also of the same type. The slides of my talk are...
on Mar 30, 2010

Community

During the initial architecture and analysis of our J2EE-based application, one Java issue generated a lot of attention on our team : Enterprise Java Beans or EJBs. Should we use EJBs? What flavor of EJBs should we use? At the time, we received no practical advice on EJB usage. We got a lot of general advice. "Use what is best for you, etc." Quite often, we were referred to a diagram with a lot...
on Jun 4, 2012
Beyond being merely a computer programming language, Java is the most widely used software platform in the entire world. There is a large number of various software solutions that were developed using this technology. Without many people being aware, Java is present in our daily lives in embedded technologies like blue-ray discs and a countless number of sites on the internet that...
on Jul 26, 2011
Content available at: http://blogs.sun.com/arungupta/entry/%C3%BCber_conf_day_2_trip
on Jun 15, 2010
The Book in Details: Security was, is, and will be one of the most important aspects of Enterprise Applications and one of the most challenging areas for architects, developers, and administrators. It is mandatory for Java EE application developers to secure their enterprise applications using Glassfish security features. Learn to secure Java EE artifacts (like Servlets and EJB methods),...
on May 13, 2010

Education

 In 1996, a group that I was working with devised a development process which we called Defect Driven Design, otherwise known as D3. We were a bit disappointed by not surprised that D3 never really caught on but just recently I saw a glimmer of hope for a revival. It was quite a surprise when about a year ago when Cameron Prudy started telling me about this great methodology called Defect...
on Nov 29, 2011

Accessibility

My name is Haim Michael, I am the General Manager for Zindell Technologies and I am an eternal student and a lecturer. I chose to develop the abelski web site for the benefit of all people world wide. I have started to develop it in November 2007 and I continuously update its courses and add new ones. All courses on this web site are available for free personal and academic usage.  The...
on Oct 4, 2010