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|Java - Interview Questions and Answers|
|Ans. 1. Entity classes should have default constructor.|
2. Entity classes should be declared non final.
3. All elements to be persisted should be declared private and should have public getters and setters in the Java Bean style.
4. All classes should have an ID that maps to Primary Key for the table.
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|Like Discuss Correct / Improve  hibernate   entity classes hibernate|
|What is Lazy Initialization in Hibernate ?|
|What are the ways to avoid LazyInitializationException ?|
|Difference between first level and second level cache in hibernate ?|
|How to configure second level cache in Hibernate ?|
|What are the contents of Hibernate configuration file ( hibernate.cfg.xml ) ?|
|Which annotations are used in Hibernate ?|
|What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved ?|
|What are the advantages of Hibernate ?|
|What is the purpose of dialect configured in Hibernate configuration file ?|
| Please specify in what sequence the objects of following classes will be created ?|
Session , SessionFactory, Query , Configuration