What is Hibernate – Hibernate Introduction
In this tutorial am going to explain, why Hibernate came into picture though we have JDBC for connecting to the database, and what is this hibernate frame work first let us see what are the draw backs of JDBC
Draw Backs of JDBC:
- In JDBC, if we open a database connection we need to write in try, and if any exceptions occurred catch block will takers about it, and finally used to close the connections.
- here as a programmer we must close the connection, or we may get a chance to get our of connections message…!
- Actually if we didn’t close the connection in the finally block, then jdbc doesn’t responsible to close that connection.
- In JDBC we need to write Sql commands in various places, after the program has created if the table structure is modified then the JDBC program doesn’t work, again we need to modify and compile and re-deploy required, which is tedious.
- JDBC used to generate database related error codes if an exception will occurs, but java programmers are unknown about this error codes right.
- In the Enterprise applications, the data flow with in an application from class to class will be in the form of objects, but while storing data finally in a database using JDBC then that object will be converted into text. Because JDBC doesn’t transfer objects directly.
In order to overcome above problems, Hibernate came into picture..!
What is Hibernate:
Hibernate is the ORM tool given to transfer the data between a java (object) application and a database (Relational) in the form of the objects. Hibernate is the open source light weight tool given by Gavin King.
Hibernate is a non-invasive framework, means it wont forces the programmers to extend/implement any class/interface, and in hibernate we have all POJO classes so its light weight.
Hibernate can runs with in or with out server, i mean it will suitable for all types of java applications (stand alone or desktop or any servlets bla bla.)
Hibernate is purely for persistence (to store/retrieve data from Database).
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::. About the Author .::
I don’t normally comment but I gotta say thank you
for the post on this perfect one 😀
thank you so much Millard Landkamer 🙂
Simply superb tutorial.One of my friends suggested Java 4s. This is really helps me clear understanding of the flow of framework. Thanks to sivateja for this fabulous tutorial!!! 🙂
thanks a lot for this beautiful post…..
@dev – You’re welcome
Very Simple & best way of explaination
Hello, In real time applications or projects, where we will be using Hibernate(in terms of SDLC and as well as Application development)?…
Hibernate is purely for persistence purpose ….!!
No chance we can use this framework for other purpose.
Hibernate is only for persistence.
So we are using hibernate only for database purpose. Instead of JDBC, we are using hibernate to transfer data as a object to object. Is that right sir?
Or any other use?
Thank you, easy to understand.
Thanks for your feedback 🙂
I am a fresher in Java and this example given me clear to understand the flow of program.
Glad to hear that its helped you, thanks for your feedback.
what is the meaning of persistence?
Persistence : Continuous and connected period of time to the database.
org.springframework.orm.hibernate.HibernateTemplate is a helper class which provides different methods for querying/retrieving data from the database. It also converts checked HibernateExceptions into unchecked DataAccessExceptions.
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Yeah iT’s clear, Very Usefull, Thnqz a Ton 🙂
Good Tutorials I like very much..
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difference between hibernate 2 & 3?
Respected sir, by this tutorial we came to know that Hibernate is introduced due to overcome the problems of JDBC but in the case of .net we also have N-hibernate as it is the remake of hibernate then we dont have JDBC in dotnet then how come you say that hibernate is introduced due to overcome the limitations of JDBC and Hibernate is an ORM which is used to solve the miss-match problems between object and relational database.
It’s good tutorial and easy way to learn hibernate
It is a nice a tutorial it help me to be a familiar with hibernate….
this article is soo clear thanks for you
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Tutorial is good. But pls take care of grammar. ‘Cos its taking little more time to understand what you are trying to say. 😀
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Thanks, for help with me.
After two days of search,finally i landed in perfect site for hibernate learn.thank u for great introduction.
I am new to hibernate and fresher. the input is stored in db or not. it is showing error at doctype in .cfg.xml. output is error 404 page. why u r showing details on notepad. actually it should stored in db rgt.
Thank you very much for the information
Nicely explained… thanks
Nice and very usefull to the hibernate learner
Nice explanation for freshers. We can easily answers if interviewers ask questions on Hibernate’s basic introduction. Thank you so much…!!!
Good Explanation … Easily understand..Thanks..
can u explain exact meaning of a persistent object. what is the differencre from other with this
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i need to know about the orm tool how it works and can u give me from where i should do projects..
Thank you for your site
Which version of hibernate is described in this tutorial. Hibernate 3.0?
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