How to add Observer to Magnolia CMS

JCR Node Manipulation Observation: When you want to monitor any actions taken on your JCR node, eg: Create, Update, Read, Delete... It's very easy to do it in Magnolia CMS

Magnolia has mechanism to manage observation, it's Observation module. You can find this module in Magnolia\Configuration app

In there, you can add your observer (class), and register any actions as your wish, workspace, node type, path, including sub-nodes? and other options. There are already many built-in observers in there for your reference

And your observation class should extend BaseRepositoryCommand, and look like below

Java Programming: Back to 2005 - Troubleshooting build issues

I didn't build any Java project far far away... from 2005, when I got my first job. Now, I'm coming back managing Java project... it's 2nd Java project that I have ever managed, this is very interesting project, and I decide to... play a role of developer

I try to build the project and I'm struggling with it!! So the motivation for this post is simple... taking notes of what I learn

I built my project, It was successful, without any errors message! I ran it, successful too... perfect! But it's weird, I cannot debug my project! I set the breakpoint, but it was not working!

My colleague, after few minutes troubleshooting, and we found the issues:

1/ The main project dependency pointing to module's version that is different from the current version that I have set in the module. So the main project is always pointing to the old Jar, not module's project

Although, before that we tried to 'MVN Clean', 'Update dependencies' for each project, it's still the same. The only way to solve the problem is going to main project POM and update the correct module's version

2/ I had learnt also that there were a Problem window in the Eclipse IDE, where I can see all the issues and I had to clean it up to make sure my project works correctly

3/ There were also Server window, where I can see my web project instance, and its dependent modules inside. If there were any problem with build, there should be missing modules inside that web instance. So you have to make sure all the dependent modules should be built and present in the web instance