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Hibernate - Interview Questions and Answers for 'Lazy loading hibernate' - 4 question(s) found - Order By Rating

 Q1. How to do Eager loading in Hibernate ?Hibernate
Ans. Using

lazy = false in hibernate config file

or

@Basic(fetch=FetchType.EAGER) at the mapping

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  Q2. What is Lazy Initialization in Hibernate ?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

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 Q3. What are the ways to avoid LazyInitializationException ?Hibernate
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.

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 Q4. After which Hibernate version , related Entities are initialized lazily ?Hibernate
Ans. After Hibernate 3.0

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