I want you to realize annotations. Sometimes the methods that we work on have more annotations than code so I'd say it's necessary.
I want you to know how annotations work. I want you to be aware of their ""magic"" and cost. So, I will explain @Target and @Retention, make an annotation and it's processor, show any reflection (and other) magic that tools like Lombok, Spring or Hibernate employment and hopefully make the planet of Java software a small clearer while doing so.
Expect:
0. Annotations. Duh! We will look at several, Java built-in, Spring ones, Lombok's and Hibernate's - possibly more.
1. Creating your own annotations.
2. Reflection, classpath scanning.
3. Annotation processing.
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