Explanation of Spring Hibernate Integration

Explanation of Spring Hibernate Integration
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Written by Sagar RabidasFebruary 17, 2022
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Hibernate
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Techiio-author
Sagar Rabidas

Software Developer

In this blog, we will discuss Spring Hibernate Integration

Introduction to Spring Hibernate Integration:-

As we've had a take a look at different articles concerning spring and hibernate that spring is a remarkable java framework and hibernate is the most famous framework and each of them is broadly used inside the enterprise. Now, the java framework is a powerful device this is used inside the complete enterprise to create vast bodies of enterprise programs in numerous degrees of complexity. With new improvements java has brought in spring is the one that is broadly used for this reason. Alternatively, frameworks are object-oriented programming this is used with the cause to surely wrap around a relational database. Now that we have a truthful concept of what both are let us observe the mixing of each.

Why do we use Spring Hibernate Integration:-

In the spring framework, we have an availability of the hibernate template magnificence. This class, particularly, allows the developer to combine the usability of creation of configuration, build session factory, the introduction of classes, start a transaction, committing of the transaction, and loads extra! So, in a nutshell, it saves several coding. Let us observe this advantage with the assist of an example.

If we want to use Hibernate without Spring, we would write the code as follows:

Code:

//creating configuration
Configuration cfg=new Configuration();
cfg.configure("hibernate.cfg.xml");
//creating seession factory object
SessionFactory fac=cfg.buildSessionFactory();
//creating session object
Session ses=fac.openSession();
//creating transaction object
Transaction txn=ses.beginTransaction();
Student s1=new Student(1234,"Ajay", "Class-11");
session.persist(s1);//persisting the object
txn.commit();//transaction is commited
session.close();  //Closing the session

To combine the above lines of code into one line using the Hibernate Template present in Spring we would just write:

Student s1=new Student(1234,"Ajay", "Class-11");
hibernateTemplate.save(s1);

So, we can see that by just writing 2 lines of code we can put off nine-10 lines of code, and also the code appears cleaner. Not handiest the above benefit, but we additionally have advantages like Hibernating Dao Support which supports Dao implementation and additionally extends the advantage of a hibernating template class. If a selected utility isn't the use of the hibernating template, then it's miles higher to apply for Hibernate Dao Support. Last but not the least, spring also offers MVC integration in which you'll use an open session in view filter or open session in view interceptor for developing classes in step with the request as opposed to developing classes in line with a thread.

Application of Spring Hibernate Integration:-

  • When we develop the integration between Spring and Hibernate, we need to first build the project structure.

The project structure includes:

  1. DAO class
  2. Main class
  3. Entity Bean
  4. Spring Bean
  5. Config files
  6. Maven dependencies
  7. Database setup script
  • First, we might look at the maven dependencies. The maven dependencies are a part of pom.Xml in which all of the dependencies required in a venture need to be declared there along with particular versions required with the aid of the developer. In pom.Xml, we need to make sure that we maintain some vital dependencies like spring-context and spring-tx which might take care of middle spring functionalities. We'd also maintain spring-porm for porm support using spring. Now because there maybe integration with hibernate, we need to maintain hibernate-entity supervisor and hibernate-middle dependencies to take care of that region. Additionally, no longer forget about approximately MySQL-connector-java for any MySQL database connection.
  • We'd look into the entity bean. This factor is used for representing continued information that's maintained in the database. For the reason that we have to hibernate in the waft, we might use JPA annotations for mapping as hibernate does assist JPA implementation. The opposite choice we have is hibernated XML-based mapping.
  • Dao stands for facts get right of item entry. This element enables supplying an abstract interface to a database. The summary interface allows in providing the desired specific statistics operations without exposing the info of the database. In this particular elegance, we can make use of annotation furnished by using spring for less difficult coding!
  • Now what we've come right down to is the spring bean configuration document. In this, we need to make sure that we specify a way to offer a database connection to hibernate. One way is to claim the whole thing in hibernate residences. And the other manner is to create a data source and then skip that into hibernate.
  • Now that we have all of the required functionalities geared up for integration, we'd define the primary elegance wherein all the commercial enterprise hassle-solving good judgment might fit. But ensure to set up logging properly in any other case one could stumble upon plenty of logs related to hibernate within the log record.

Hibernate
HibernateIntegration
Java
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Sagar Rabidas
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