Hibernate questions and answers pdf

Efficient fetching strategies and caching strategies are implemented transparently to the application. There are many benefits from these. Out of which the following are the most important one. Productivity : Hibernate reduces the burden of developer by providing much of the functionality and let the developer to concentrate on business logic.

Maintainability :As hibernate provides most of the functionality, the LOC for the application will be reduced and it is easy to maintain. Performance : Hand-coded persistence provided greater performance than automated one. But this is not true all the times. But in hibernate, it provides more optimization that works all the time there by increasing the performance.

This section provides a huge collection of Hibernate Interview Questions with their answers hidden in a box to challenge you to have a go at them before discovering the correct answer.

This section provides a great collection of Hibernate Multiple Choice Questions MCQs on a single page along with their correct answers and explanation. If you select the right option, it turns green; else red. If you are preparing to appear for a Java and Hibernate Framework related certification exam, then this section is a must for you. This section simulates a real online test along with a given timer which challenges you to complete the test within a given time-frame. Which one is the default transaction factory in hibernate?

With hibernate 3. JMX provides tools for development of efficient and robust distributed, web based solutions. How can we bind hibernate session factory to JNDI? Hibernate session factory can be bound to JNDI by making configuration changes in hibernate.

In how many ways objects can be identified in Hibernate? Object identification can be done in hibernate in following three ways: a.

Using Object Equality: Using equals method. Using database identity: Relational database objects can be identified if they represent same row. What different fetching strategies are of hibernate? Following fetching strategies are available in hibernate: 1. Join Fetching 2. Batch Fetching 3. Select Fetching 4. Sub-select Fetching How mapping of java objects is done with database tables? To map java objects with database tables, we need to have Java beans properties names same as column names of a database table.

Then mapping is provided in hbm. What are derived properties in hibernate? Derived properties are those properties which are not mapped to any columns of a database table.

Such properties are calculated at runtime by evaluation of any expressions. Named SQL queries are those queries which are defined in mapping file and are called as required anywhere. So, ideally we should use Load method only when we are sure about existence of records against an id. Version property is used in hibernate to know whether an object is in transient state or in detached state. What is attribute oriented programming? In Attribute oriented programming, a developer can add Meta data attributes in the java source code to add more significance in the code.

For Java hibernate , attribute oriented programming is enabled by an engine called XDoclet. Does hibernate support polymorphism? Yes, hibernate fully supports polymorphism. Polymorphism queries and polymorphism associations are supported in all mapping strategies of hibernate. What the three inheritance models are of hibernate?

Hibernate has following three inheritance models: a. Tables Per Concrete Class b. Table per class hierarchy c. Table per sub-class. How can we map the classes as immutable? Load configuration file and create object of configuration class.

Using configuration object, create sessionFactory object. Hopefuls can play hibernate Online Test that will help to clear all the concepts and helpful to prepare for the interviews. In addition to this, the applicants can find a lot of stuff related to the Hibernate with the help of this article. It provides the framework for mapping an object-oriented domain model to a relational database.

It generates SQL calls and relieves the developer from the manual handling and the object conversion of the result set. By knowing the fundamentals of the Hibernate, the aspirants can quickly answer the Hibernate Questions at the time of examinations. All the applicants need to check the Hibernate Questions and answers from the below online test. Contenders will get beneficial and can learn the topics by taking part in the Hibernate Online Test.

Without time waste, the aspirants need to practice the questions in the Hibernate Quiz. Without any sign-in data, the aspirants can participate in the Hibernate Quiz which is arranged on this page. In addition to this, there is no time limit for the contenders to practice the questions in the Hibernate Online Test.