Hibernate-the ultimate ORM framework

Introduction to Persistence & Hibernate framework

To understand Persistence, we first need to know what Hibernate stands for.  Persistence is basically an object-relational mapping (ORM) library for the Java language, providing a framework for mapping an object-oriented domain model to a traditional relational database. Hibernate solves object-relational impedance mismatch problems by replacing direct persistence-related database accesses with high-level object handling functions. On the other hand, Persistence an instance of plain old Java object (POJO) class that represents a table. When a POJO instance is in session scope, it is said to be persistent i.e. Hibernate detects any changes made to that object and synchronizes it with database when the session is closed. Thus, persistence can be deemed as one of the ultimate features of the Hibernate framework.

Why learn Persistence with Hibernate?

As data usage is increasing day by day in all domain applications, the usage and complexity of Database increases exponentially. It is important to have a framework which handles all the life cycle, connections, sessions and transactions of database, henceforth leaving only the business logic for the developers to work with. This is where Hibernate comes in and helps the professionals to concentrate only on business logic instead of database environments. There is a huge demand for Hibernate professionals and this course acts as a foundation, also provides lots of opportunities in the Java Persistence world.

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