annotations Archives

Java, Programming

IT Nursery

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 ...

June 1, 2022
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Java, Programming

IT Nursery

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 ...

May 31, 2022
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Programming, Python

IT Nursery

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 ...

May 30, 2022
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Java, Programming

IT Nursery

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 ...

May 29, 2022
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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

May 25, 2022
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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 ...

May 24, 2022
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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 ...

May 23, 2022
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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": ...

May 19, 2022
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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

May 19, 2022
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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 ...

May 18, 2022
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