Search Interview Questions |  More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know. |
|
|||
|
| ||||
| Hibernate - Interview Questions and Answers for 'Overstock.com' - 7 question(s) found - Order By Newest | ||||
 Frequently asked question in companies using Hibernate. | ||||
| ||||
| 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 | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
 Discuss Correct / Improve  hibernate lazy loading hibernate lazy initialization hibernate architecture  Asked in 77 Companies  Basic  frequent | ||||
 Try 2 Question(s) Test | ||||
| ||||
| Ans. 1. Set lazy=false in the hibernate config file. 2. Set @Basic(fetch=FetchType.EAGER) at the mapping. 3. Make sure that we are accessing the dependent objects before closing the session. 4. Force initialization using Hibernate.initialize 5. Using Fetch Join in HQL. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve hibernate lazy loading hibernate lazy initialization hibernate lazyinitializationexception architecture Asked in 2 Companies | ||||
| Try 2 Question(s) Test | ||||
| ||||
| 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 ) | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve hibernate configuration barclays Asked in 11 Companies | ||||
| ||||
| Ans. 1. Query Optimization ( Query Rewriting , Prepared Statements ) 2. Restructuring Indexes. 3. DB Caching Tuning ( if using ORM ) 4. Identifying the problems ( if any ) with the ORM Strategy ( If using ORM ) | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve java db database hibernate orm at&t overstock.com performance improvement architecture technical lead architect intermediate | ||||
| Very frequently asked Hibernate interview question. Frequently asked in TCS ( based on 2 feedback ) | ||||
| ||||
| Ans. There are 4 types of associations in Hibernate One to One One to Many Many to One Many to Many | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve hibernate associations Asked in 11 Companies frequent | ||||
| Very frequently asked if being interviewed for hibernate. Frequently asked in Tata Consultancy (TCS) and Overstock.com | ||||
| ||||
| 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. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve hibernate Asked in 16 Companies basic frequent | ||||
| ||||
| 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. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve hibernate hibernate criteria Asked in 7 Companies Basic Frequent | ||||
| Try 1 Question(s) Test | ||||
What is Lazy Initialization in Hibernate ?
