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HCL Technologies

HCL Technologies Limited is an Indian multinational IT services company, headquartered in Noida, Uttar Pradesh, India. It is a subsidiary of HCL Enterprise.

Link: https://www.hcltech.com/
   




Hibernate - Interview Questions and Answers for 'Hcl tech' - 9 question(s) found - Order By Newest

Frequently asked question in companies using Hibernate.
  Q1. What is Lazy Initialization in Hibernate ?Hibernate
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Ans. It's a feature to lazily initialize dependencies , relationship and associations from the Database. Any related references marked as @OneToMany or @ManyToMany are loaded lazily i.e when they are accessed and not when the parent is loaded.

  Sample Code for Lazy Initialization

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   Like         Discuss         Correct / Improve     hibernate   lazy loading hibernate   lazy initialization hibernate   architecture     Asked in 77 Companies      Basic        frequent

Try 2 Question(s) Test


Frequently asked question in companies using hibernate.
  Q2. Difference between first level and second level cache in hibernate ?Hibernate
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Ans. 1. First level cache is enabled by default whereas Second level cache needs to be enabled explicitly.

2. First level Cache came with Hibernate 1.0 whereas Second level cache came with Hibernate 3.0.

3. First level Cache is Session specific whereas Second level cache is shared by sessions that is why First level cache is considered local and second level cache is considered global.

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   Like         Discuss         Correct / Improve     hibernate   orm   hibernate cache   architecture   technical lead     Asked in 18 Companies      Intermediate        frequent


 Q3. What are the contents of Hibernate configuration file ( hibernate.cfg.xml ) ?Hibernate
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Ans. HBM Files ( Mapping )
DB Connection ( DB Connection String , User Name , Password , Pool Size )
SQL Dialect ( SQL variant to be generated )
Show SQL ( Show / No show SQL on Console )
Auto Commit ( True / False )

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   Like         Discuss         Correct / Improve     hibernate   configuration   barclays     Asked in 11 Companies


Very frequently asked if being interviewed for hibernate. Frequently asked in Tata Consultancy (TCS) and Overstock.com
  Q4. Difference between load and get ?Hibernate
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Ans. If id doesnt exist in the DB load throws an exception whereas get returns null in that case.get makes the call to DB immediately whereas load makes the call to proxy.

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   Like         Discuss         Correct / Improve     hibernate     Asked in 16 Companies      basic        frequent


 Q5. What are different types of second level cache ?Hibernate
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Ans. 1. EHCache ( Easy Hibernate )
2. OSCache ( Open Symphony )
3. Swarm Cache ( JBoss )
4. Tree Cache ( JBoss )

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   Like         Discuss         Correct / Improve     hibernate   orm   hibernate cache   technical lead     Asked in 7 Companies


Very frequently asked Hibernate interview question. Frequently asked in TCS ( based on 2 feedback )
  Q6. What are different types of associations in Hibernate ?Hibernate
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Ans. There are 4 types of associations in Hibernate

One to One
One to Many
Many to One
Many to Many

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   Like         Discuss         Correct / Improve     hibernate   associations     Asked in 11 Companies        frequent


 Q7. What is Criteria in Hibernate ?Hibernate
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Ans. Criteria is a simplified API for retrieving entities by composing Criterion objects.

For example - session.createCriteria(Employee.class).add( Restrictions.like("name", "A%") ).list();

will return all employee objects having name starting with A.

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   Like         Discuss         Correct / Improve     hibernate   hibernate criteria     Asked in 7 Companies      Basic        Frequent

Try 1 Question(s) Test


 Q8. Explain Hibernate caching mechanismHibernate2018-11-14 12:53:50

 This question was recently asked at 'Infosys,Sabre,Sapient,HCL Technologies,Thomson Reuters,Capgemini,FINRA,abhra,Ephesoft,Ananth Technologies,Verizon,Azuga,UrbanPro,Indecomm Global Services,The Digital Group,mPHATEK systems,Cakesoft Technologies,GoldenSource Corporation,Synechron,Clear2Pay,Rigil,Azuga,GGK Technologies system'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 23 Companies


 Q9. Explain different inheritance mapping strategies with JPA / Hibernate.Hibernate2019-01-04 10:13:43

 This question was recently asked at 'Cognizant (CTS),HCL Technologies,Accenture,Accenture India'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     hibernate mapping  hibernate associations     Asked in 4 Companies




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