Exam 2V0-72.22 topic 1 question 39 discussion

Actual exam question from VMware's 2V0-72.22

Question #: 39
Topic #: 1

[All 2V0-72.22 Questions]

Refer to the exhibit.

Based on the default Spring behavior, choose the correct answer. (Choose the best answer.)

A. One AccountRepository bean will be instantiated since the default scope is singleton.
B. Three AccountRepository beans will be instantiated as the accountRepository() method will be called three times.
C. Many AccountRepository beans will be instantiated, depending how often accountRepository(), transferService() and accountService() are called.
D. Two AccountRepository beans will be instantiated as the accountRepository() method will be called two times.

Show Suggested Answer

Suggested Answer: A 🗳️

by zakupower at March 12, 2023, 7:48 p.m.

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Tolo01

11 months ago

Selected Answer: A

A is the best answer

upvoted 2 times

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why not D ? even if it is singleton because ther are no scope , the bean is still instantiated twice because it is called twice by two different @Bean methods (transferService() and accountService()).

upvoted 1 times

nesreenmhd123

8 months, 3 weeks ago

A. One AccountRepository bean will be instantiated since the default scope is singleton. In Spring, when a method annotated with @Bean is called multiple times within the same application context, the Spring container manages the bean instances based on the method's scope. By default, the scope of a @Bean method is singleton, which means Spring will create and manage a single instance of the bean within the application context. Regardless of how many times the method is called, only one instance of the bean will be created and managed by Spring.

upvoted 3 times

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zakupower

1 year, 3 months ago

Selected Answer: A

Default scope is singleton, doesn't matter how many times you request the bean.

upvoted 3 times

quakquak3

6 months, 2 weeks ago

Also, Spring intercepts the call to the bean factory method and first checks if the singleton is already created. So it makes no difference if accountRepository() is called or if a parameter of type AccountRepository is used in transferService()/accountService()