Should we use "final" keyword for @Auotowired inject Bean

Question

I usually see in other codes which use final key word to inject Service Bean to Controllers, some code are not. So, what's the reason to use "final" in this. I know final variable that means it's immutable variable. I research some blogs that they say it relates to thread-safe.

score 3 · Answer 1 · answered Dec 06 '20 at 15:05

3

Use final when using constructor injection:

constructor injection lets the riskAssessor field be marked as final, indicating that it cannot be subsequently changed

answered Dec 06 '20 at 15:05

user7294900

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But if I don't use final and use @Autowired in constructor and it still works normally? – Tam Huynh Thanh Dec 07 '20 at 02:15
@TamHuynhThanh if you use spring bean default singletone scope and write thread safe code then it will be thread safe, you don't have to mark as final – user7294900 Dec 07 '20 at 06:52

Should we use "final" keyword for @Auotowired inject Bean

1 Answers1