Spring - Interview Questions and Answers for 'Bean scope' | Search Interview Question

Spring - Interview Questions and Answers for 'Bean scope' - 5 question(s) found - Order By Newest

Q1. What is the difference between Singleton and Prototype Bean scope in Spring ?

Ans. Prototype scope - A new object is created each time it is injected/looked up. It will use new SomeClass() each time.

Singleton scope - It is the default scope. The same object is returned each time it is injected/looked up. Here it will instantiate one instance of SomeClass and then return it each time.

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Q2. What the Bean scopes provided by Spring ?

Spring

Ans. Singleton , Prototype , Request , Session , global-session

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Q3. When should we use prototype scope and singleton scope for beans ?

Spring

Ans. We should use singleton scope for beans when they are stateless and prototype when they are stateful.

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Q4. Which class provides the enumerated value for Bean Scope ?

a. BeanDefinition
b. ConfigurableBeanFactory
c. WebApplicationContext
d. All of the Above

Spring

Ans. All of the Above

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Q5. Can we use Prototype Bean scope with Autowiring ?

Spring

Ans. Default Bean scope in auto wiring is Singleton but Yes, that can be changed by specifying the Bean scope explicitly.

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