How do different retention policies affect my annotations?
Can anyone explain in a clear way the practical differences between the java.lang.annotation.RetentionPolicy constants SOURCE, CLASS, and RUNTIME? I’m also not exactly sure … Read more
annotations
codestyle; put javadoc before or after annotation?
I know that it isn’t the most vital of issues, but I just realised that I can put the javadoc comment block before … Read more
Python void return type annotation
In python 3.x, it is common to use return type annotation of a function, such as: def foo() -> str: return “bar” What … Read more
intellij incorrectly saying no beans of type found for autowired repository
I have created a simple unit test but IntelliJ is incorrectly highlighting it red. marking it as an error No beans? As you … Read more
How and where are Annotations used in Java?
What are the major areas that we can use Annotations? Is the feature a replacement for XML based configuration? 14 Answers 14
Why is it not possible to extend annotations in Java?
I don’t understand why there is no inheritance in Java annotations, just as Java classes. I think it would be very useful. For … Read more
Does Spring @Transactional attribute work on a private method?
If I have a @Transactional -annotation on a private method in a Spring bean, does the annotation have any effect? If the @Transactional … Read more
Which types can be used for Java annotation members?
Today I wanted to create my first annotation interface following this documentation and I got this compiler error Invalid type for annotation member”: … Read more
Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations? 20 Answers 20
Scanning Java annotations at runtime
How do I search the whole classpath for an annotated class? I’m doing a library and I want to allow the users to … Read more