Raghu just posted an interesting article asking the question "Does EJB 3.0 really make application development easy?". So as you will see EJB 3.0 does simplify the development by reducing the number of source and descriptor files that you have to manipulate. (I won't go in the detail of the number of lines of Java or XML). What I really like about EJB 3.0 is not only the fact that Entity bean are POJOs, but also that now you can read the code and understand how the application is build, thanks to the annotations! I am sure that if you got the EJB 2.x genes you do not find them complex, but I did not have this mutation... I am inviting you to download the Oracle EJB 3.0 Developer Preview to be more familiar with this technology.
Thursday, March 31, 2005
Monday, March 28, 2005
For me, it is the first time that finally we have something really new in term of UI that is compliant with most of the modern architectures that are server side Java based. You can argue that Flex, OpenLazlo, ..., are very good and powerful, but first of all they use a proprietary plugin and really integrated with the development approach that most of the Java developers are currently using (MVC based on Struts, JSF or others). What get me very excited about Ajax is the fact that finally we can see Web Development giving an easy and standard/open way of creating rich client.
If you search around Ajax your will see that more and more framework are providing integration of Ajax technologies into their solution. What I see as the biggest move is the adoption of Ajax by JavaServer Faces, and simply because it is the J2EE standard for Java Web Development. I am sure that lot of you will say that Tapestry,ROR and other existing frameworks are providing the integration now, so why bother with JSF... Hmmm, I will say that all the current solution as still geek oriented and really focus on the core developers... What I see with JSF/Ajax integration is finally enterprise developers, that are used to 4GL development tools, (where the most important part is to develop business logic not a nice framework or a new set of libraries) will be able to develop Web Applications based on components that are smart enough to give the usability of a desktop application.
Sunday, March 27, 2005
Oracle BPEL Process Manager 10.1.2 Beta-3 Preview
BPEL PM 10.1.2 Beta 3 is now available on OTN. One of the biggest new, is the fact that the BPEL Designer is now based on Oracle JDeveloper and provide much more functionnalities than previous release.
Oracle Drive Preview Release
Oracle Drive Preview Release is a powerful WebDAV client that allows Portal content management and publishing directly from your Windows Desktop; Key Highlights:
- Mount the Portal Repository as a Windows Drive
- Get Portal specific menu options to set properties, ACL information, preview content and pages, etc
- Access the Portal repository with a command line utility
- Search from your Windows Explorer
- Perform Virus check on the Portal Repository
- Work with offline content and synchronize when online
- Edit content with any available Editor
Saturday, March 26, 2005
In this entry I am explaining how to use the JSR-223 Reference Implementation into Oracle Containers for J2EE (OC4J).
Note: I have done this only on Windows XP Platform, I did not test on Unix/Linux yet.
1-The first thing to do is to download the JSR-223 Reference Implementation from the JCP Web site.
2- Unzip the sjp-1_0-ea-windows-i586.zip in a directory let say d:\java\jsr223-ri.
3- You can choose here to do a proper installation (requires perl) or not. The *proper* installation preconfigure Apache Tomcat and the JSR-223 command line demonstration. Since what we are trying to achieve is to install the RI inside OC4J you do not need to do the installation.
4- Download this zip file that contains a Ant task and various files to configure and deploy the JSR223 sample into OC4J.
4.1 To execute the Ant script you must start to set the following environman variables:
- JAVA_HOME that points to the JDK home
- ORACLE_HOME that points to the OC4J home (eg: d:\oracle\oc4j)
- JSR223_HOME that points to directory where you have unzipped the JSR223 RI (eg d:\java\jsr223)
4.2 Create a startup script for OC4J using the command
antThe default target create a script names start-jsr223.bat in the %ORACLE_HOME%\bin directory. This script set various environment variable and start OC4J with the correct system parameters to load correctly the PHP scrip engine from Java.
4.3 Start OC4J using the created script
4.4 Package and Deploy the Sample Application
ant deployThis target packacge the Web samples from the reference implementation in a ear/war file, modifying the web.xml to define the different servlet mapping needed by JSR223.
5 Use the sample application
You can start to use PHP in OC4J ;-) Take some time to read the sample code and specifications. JSR-223 is not only for Web container but also for JS2E, it is so interesting that the JSR-223 will probably be part of Mustang...
Wednesday, March 16, 2005
A friend a mine just ask me:
What blog software do you recommend if somebody is starting newly, should have the ability to create categories, easy image uploading?
I did not understand immediately his question, but he wanted to know if some Desktop application exists to easily publish on a blog...
I am sure that you can find a lot on the Web, I personnaly use w.bloggar. As you may know most of the Blog (server) provides XML-RPC, it is how this tools communicate with your server
Here the list of the supported online services and blog supported by w.bloggar:
| Blog Services
Tuesday, March 15, 2005
This new Java World article compares the different Java scripting languages (Groovy, JudoScript, Pnuts, JRuby, Jacl, Jython, Rhino, and BeanShell), and list the issues that you have to select the good one... In this article that I like I would like to read a little about the JSR-223 that should help with the integration part. I will be very interested to know how you use Java Scripting language in your projects, so feel free to drop me a comment or mail ( tugdual[at]grallandco[dot]com )
Friday, March 4, 2005
Looking forward to play around with EJB 3.0? You can now download the OracleAS 3.0 Preview from OTN: "Oracle Application Server EJB 3.0 Preview". In addition to the container you can find documentation, demonstration and technical papers. I am sure you will enjoy it, discover the new way of deal with persistence based on Java annotations...