When it comes to objects, the value of the reference is copied into a new variable. When we pass primitives to a method, its value is copied into a new variable. They represent two types of data that we can pass to a method: a primitive and an object. This is potentially useful if you want to migrate around a multi-processor cluster.Ĥ.The persistent class should not be final because if it is final then lazy loading cannot be used by creating proxy objects.ĥ.Use XDoclet tags for generating your *.hbm.xml files or Annotations (JDK 1.5 onwards), which are less verbose than *.hbm.xml files. To answer the question we have to analyze two cases. It is recommended to implement the Serializable interface. Inversion of Control with a Hibernate Template and Callback. If youre looking for Spring Interview Questions & Answers for Experienced or Freshers. Answer: An entity is a group of states bundled (or associated) together in a single unit. Define entity and name the different properties of an entity. Answer: one-to-one mapping, one-to-many mapping, many-to-one mapping, and many-to-many mapping. This is because the Hibernate only generates and sets the field when saving the object.ģ. 60 Java Spring Interview Questions and Answers Real-time Case Study Questions Frequently Asked Curated by Experts Download Sample Resumes. Can you name the different types of entity mapping. Hibernate Interview Questions For Experienced. JPA Interview Questions For Experienced 1. mutator/setter) methods for all your persistable instance variables.Ģ.You should implement the equals() and hashCode() methods based on your business key and it is important not to use the id field in your equals() and hashCode() definition if the id field is a surrogate key (i.e. Top JPA Interview Questions and Answers Real-time Case Study Questions Frequently Asked Curated by Experts Download Sample Resumes. What are the general considerations or best practices for defining your Hibernate persistent classes?ġ.You must have a default no-argument constructor for your persistent classes and there should be getXXX() (i.e accessor/getter) and setXXX( i.e.
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