annotations Archives - Page 3 of 4

When do you use Java’s @Override annotation and why?

Locked. This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new ...

May 3, 2022
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Where does the @Transactional annotation belong?

Should you place the @Transactional in the DAO classes and/or their methods or is it better to annotate the Service classes which are ...

May 1, 2022
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Spring: @Component versus @Bean

I understand that @Component annotation was introduced in spring 2.5 in order to get rid of xml bean definition by using classpath scanning. ...

April 29, 2022
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Difference between and

I’m learning Spring 3 and I don’t seem to grasp the functionality behind <context:annotation-config> and <context:component-scan>. From what I’ve read they seem to ...

April 26, 2022
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What does -> mean in Python function definitions?

I’ve recently noticed something interesting when looking at Python 3.3 grammar specification: funcdef: 'def' NAME parameters...

April 21, 2022
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Which @NotNull Java annotation should I use?

I’m looking to make my code more readable as well as use tooling like IDE code inspection and/or static code analysis (FindBugs and ...

April 14, 2022
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What’s the difference between @Component, @Repository & @Service annotations in Spring?

Can @Component, @Repository and @Service annotations be used interchangeably in Spring or do they provide any particular functionality besides acting as a notation ...

April 10, 2022
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When do you use Java’s @Override annotation and why?

Use it every time you override a method for two benefits. Do it so that you can take advantage of the compiler checking ...

April 8, 2022
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@Autowired – No qualifying bean of type found for dependency

April 7, 2022
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Only using @JsonIgnore during serialization, but not deserialization

Exactly how to do this depends on the version of Jackson that you’re using. This changed around version 1.9, before that, you could do ...

April 6, 2022
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