Also, switching from one database to another, implementing oops with JDBC, creating associations between database tables require lots of effort and rework if done without using the Hibernate framework.
In order to retrieve data from the database writing repeatedly the same lines of code in your application again and again can be tiring and irritating. There are four layers in Hibernate architecture. along with existing Java API such as JDBC ( Java Database Connectivity), JTA (Java Transaction API) and JNDI (Java Naming Directory Interface). Hibernate framework uses many objects such as session factory, session, transaction, etc. The architecture of Hibernate consists of objects like a session factory, transaction factory, persistent object, etc. It is with the help of the database and configuration data that the Hibernate is able to provide persistence services and objects to the application. The architecture of Hibernate is layered such that the user does not really need to know the underlying APIs in order to operate. Hibernate will work so as to persist the Java objects depending upon the correct O/R patterns and recognition mechanisms. Java objects and database server interacts with each other via Hibernate.
Web development, programming languages, Software testing & others Understanding Java Hibernate
JDBC Drivers are the software that helps java applications to interact with databases.Start Your Free Software Development Course It’s obsolete after JDK 8 as it had limited drivers and the connectivity could only be possible with ODBC Drivers, Oracle suggests to use JDBC drivers from database vendors or third parties.
JDBC Driver Test Suite: JDBC driver test suite basically helps you to check if the JDBC driver will run on your application or not.JDBC Driver Manager: The JDBC Driver Managers class, as the name suggests, describes objects to connect java applications to JDBC Driver.Both the packages are present in Java SE and Java EE platforms. These packages are imported so that their classes and interfaces could be utilized for database connectivity and query. There are two packages which come with JDBC API, java.sql and javax.sql. With the help of JDBC API, Applications can execute SQL statements, retrieve data from the database and perform changes over the database using java applications. JDBC API: The JDBC API provides java applications to access the relational data using java programming language.
JDBC helps you to write java applications that can incorporate databases and their functionalities, the three functionality JDBC can provide you are: Let’s suppose we are using SQL(Structured Query Language) to create a database but java doesn’t know how structured query works, right! Here comes JDBC API to the rescue, JDBC API helps java applications to interact with the databases.
Here, with the help of HTML, CSS, and Java you created the front end, but alone they cannot help you save the user’s data and for that, you’d need a database to store the data. This means that you need a database that can store users’ login credentials as well as their details. Now, you need to maintain the records for managing multiple users where you’d need to save their email addresses and passwords. Let’s understand it with the help of an example, you’re creating a simple java application where you have different users with different dashboards, which means every user will have their own credentials to log in.