Hibernate - Interview Questions and Answers for 'Hibernate' | Search Interview Question

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Q91. What is the use of @GeneratedValue annotation in Hibernate?

Ans. This annotation is added to the auto increment column with the strategy to increment the column value. Usually this is added to the surrogate primary key column and specified with the Database Sequence.

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Related Questions

What are the different ID generating strategies using @GeneratedValue annotation ?

Q92. What are some differences between Spring caching and Hibernate caching?

Hibernate

Ans. Spring caching makes use of its intercepting capabilities to add caching to method calls. Therefore, the entire object is cached and reused. Hibernate, on the other hand, has more domain-specific knowledge of the Entity being cached and can handle the objects more appropriately.

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Related Questions

Difference between first level and second level cache in hibernate ?

How to configure second level cache in Hibernate ?

What is the use case for AWS Gateway cached , stored and VTL ?

What are the the methods to clear cache in Hibernate ?

What are different types of second level cache ?

Can we disable first level cache ? What should one do if we don't want an object to be cached ?

Have you ever faced any problem due to caching?

Can you please provide an implementation of application level cache ?

Implement an LRU Cache ?

Q93. What is Lazy Initialization in Hibernate ? Reference

Hibernate

a. Feature to load the dependencies from Cache

b. Feature to load all objects and relationships in advance before they can be used

c. Feature to not load dependencies and relationship in advance and load when required

d. Feature to not load the dependencies and relationships at all

Ans.c. Feature to not load dependencies and relationship in advance and load when required

Q94. Which of the following is not the benefit of Lazy Initialization in Hibernate ?

Hibernate

a. Laod When required provides better performance

b. Object stays lighter

c. Less number of Database calls

d. Less load on Database

Ans.c. Less number of Database calls

Q95. Which of the following is not true for Hibernate Cache ?

Hibernate

a. First level cache is enabled by default

b. First level Cache is Session specific

c. First level cache is considered global

d. First level Cache came with Hibernate 1.0

Ans.c. First level cache is considered global

Q96. Which of the following is not an Hibernate Annotation

Hibernate

a. @Id

b. @JoinTable

c. @ManyToMany

d. @Autowired

Ans.d. @Autowired

Q97. Which of the following Design pattern has been used with Hibernate Criteria ?

Hibernate

a. Filter

b. Prototype

c. Builder

d. Observer

Ans.a. Filter

Q98. Which of following is not core interface of Hibernate ?

Hibernate

a. Session

b. Transaction

c. SessionFactory

d. TransactionFactory

Ans.d. TransactionFactory

Q99. Which of the following session method is used to disassociate / disconnect all objects from the session Reference

Hibernate

a. Clear

b. Evict

c. Close

d. Merge

Ans.a. Clear

Q100. Which of the following session method is used to disassociate / disconnect a particular object / entity from the session

Hibernate

a. Clear

b. Evict

c. Close

d. Merge

Ans.b. Evict

Q101. Which of following is not the resolution for preventing LazyInitializationException?

Hibernate

a. Set fetch=FetchType.EAGER for Dependent entity mapping

b. Make sure that we are accessing the dependent objects before closing the session

c. Make sure that we are accessing the dependent objects after closing the session

d. Wrap the complete access within Transaction

Ans.c. Make sure that we are accessing the dependent objects after closing the session

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