Skip to main content


Showing posts from 2013

TigerTeam TRIMM - Model Driven Generator just went Open Source

TigerTeam TRIMM – Model Driven Generator is just Open Sourced in July 2013. I myself never heard of this product before and found this product by coincidence as I tried to find a JPA 2 standalone cartridge / generator available in Internet. I know that AndroMDA has some cartridges to persist Java objects but as far as I know AndroMDA only support persistence in the context of EJB 3 not as standalone JPA.

After I found this product I began to analyze the code at and found out that the idea with the Events and Listeners as Extensions is a very good idea. TRIMM also uses Maven completely and does not have any dependencies to Eclipse plugins, so you are Eclipse independent. Special to this framework is that it uses its own metamodel and does not use UML2 metamodel for the generators. TRIMM should work for MagicDraw and Enterprise Architect and it can read the files directly from those UML tools. It also uses its own Java code generator which is basically based on String outp…

CDI vs. Spring Framework Core

Another question I got in my Spring Framework training is:is it worthwhile to switch from Spring Framework 3.x to CDI with JBoss Weld or Apache OpenWebBeans implementation?

After googling around I found some good articles and blogs about this topic. These two articles are the best in my opinion:
Spring DI and CDI Comparative StudyCDI 1.0 vs. Spring 3.1 feature comparsion: bean definition & dependency injection Luckily I had a chance to take a CDI course intensively for two days to be able to see what we actually could do with CDI. After doing two days intensive course of CDI I can sum up this topic as following:
CDI takes a lot of good idea of Spring Framework, this is for sure.Anything you can do with CDI (I used JBoss Weld in the course I followed) is not new and you can have those stuffs in Spring Framework as well.In CDI 1.0 (JEE 6) there is still a lot of things which is not supported natively such as "scanning of classes and packages" to turn on the dependency inject…

Creating Spring Bean dynamically in the Runtime

In my training someone asked me whether it is possible to create an object (a Spring Bean) dynamically so you can choose which implementation you want to have in the runtime. So at the compile time you don't know what object actually should be created yet. The application should decide what object to be created based on a property file.

1. We create an annotation so we can mark the method which should be able to create the object dynamically:

package your.package;
public @interface InjectDynamicObject {
2. Use the new created annotation in your method which should be able to create the object dynamically:
... @Named("customerBo") public class CustomerBoImpl implements CustomerBo { ...     @Override @InjectDynamicObject public Customer getDynamicCustomer() {         return this.dynamicCustomer; } ...
3. Write an aspect with Pointcut and Advise which change the object returned by the method in the step 2:
... @Named @Aspect public class Dyn…

Software Development Macro and Micro Process

If you think that in year 2012 all companies which produce software and IT divisions in our world have already their optimized software development process, you are wrong. It seems that we - software architects, software developers or whatever your title is - still need to optimize the software development process in many software companies and IT divisions.

So what do you do if you enter a software company or IT division and you see following things:

1. There is a perfect project management process to handle all those development of software butit is a pure project management without a context to software development. So basically you only take care of cost, time, budget and quality factors. In the software development you still use the old fashioned waterfall process.

2. From the tooling point of view: you have a project management planning and controlling tool but you are still in the beginning of Wiki (almost no collaboration tool) andyou don't use issues tracking system to han…