Webinar: Hibernate - the ultimate ORM framework
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The webinar on Persistence with Hibernate titled " Hibernate-the ultimate ORM framework " conducted by Edureka on 22nd December 2014
![Slide 15 www.edureka.co/persistence-with-hibernate
Provides a simple API for storing and retrieving Java objects directly to and from the database
Non-intrusive: No need to follow specific rules or design patterns
Transparent: Your object model is unaware
ORM using Hibernate
JavaObject
int id;
String name;
String getName()
int getId()
void setName(String)
SQL Table
id [int] primary key,
name [varchar(50)],
Magic Happens Here
(O/R Mapper – i.e. Hibernate)](https://image.slidesharecdn.com/presistencewithhibernatewebinar-141222011436-conversion-gate02/85/Webinar-Hibernate-the-ultimate-ORM-framework-15-320.jpg)
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Webinar: Hibernate - the ultimate ORM framework
- 1. www.edureka.co/persistence-with-hibernate Hibernate-the ultimate ORM framework View Persistence with Hibernate course details at www.edureka.co/persistence-with-hibernate For Queries: Post on Twitter @edurekaIN: #askEdureka Post on Facebook /edurekaIN For more details please contact us: US : 1800 275 9730 (toll free) INDIA : +91 88808 62004 Email Us : [email protected]
- 2. Slide 2 www.edureka.co/persistence-with-hibernate Persistence Overview What is Hibernate? Persistence with Hibernate Understand ORM ORM using Hibernate Benefits of Hibernate Understand the skills required for Hibernate Impedance mismatch and solution Uses cases with Hibernate Explore Hibernate tools Implement use case of Hibernate At the end of this module, you will be able to: Objectives
- 3. Slide 3 www.edureka.co/persistence-with-hibernate Hi DATABASE !!! How are you? I am doing good JAVA, How are you?
- 4. Slide 4 www.edureka.co/persistence-with-hibernate I wish if we could help each other using our own style. I am not doing so good. Working on an application, lot of coding in it to connect with you, too complex.
- 5. Slide 5 www.edureka.co/persistence-with-hibernate Hey, JAVA and DATABASE, My name is ORM!!
- 6. Slide 6 www.edureka.co/persistence-with-hibernate I can do mapping between you two. What I mean is, I can MAP JAVA’s object model with DATABASE’s relational model.
- 7. Slide 7 www.edureka.co/persistence-with-hibernate But there are so many Databases like MySQL, Oracle, SQL Server. Will you be able to MAP me with all of them ?? YEAH, I agree with JAVA.
- 8. Slide 8 www.edureka.co/persistence-with-hibernate No worries, I can connect to all the databases easily. I am DATABASE independent.
- 9. Slide 9 www.edureka.co/persistence-with-hibernate WOW, that’s great ORM, thanks a lot, you just solved all our problems. AWESOME!!!
- 10. Slide 10 www.edureka.co/persistence-with-hibernate One of the fundamental building block for application development It is the ability of an object to survive the lifetime of the OS process in which it resides It’s a characteristic of storing the data that created it It’s relevant for objects with an internal state The state of data needs to be retained between object deactivation and object activation Data persistence normally happens through Databases Persistence data can be accessed by Object Oriented Languages Persistence
- 11. Slide 11 www.edureka.co/persistence-with-hibernate An Object relational mapping library of java language for Object persistence and SQL databases Found in 2001 by Gavin King Transparent persistence of java objects with relational database Provides query language in synch with SQL Open source library Provides solutions for object relational impedance mismatch problems Hibernate
- 12. Slide 12 www.edureka.co/persistence-with-hibernate Objective is to solve the complexities existed in EJB2 persistence architecture Provided a platform for Java language to interact with any database vendor Dialect support HQL interaction with same format in all databases Persistence with Hibernate Derby MySQL Oracle
- 13. Slide 13 www.edureka.co/persistence-with-hibernate Relational Database Management System (RDMBS) is a collection of data grouped into tables One of the core components in persistence of data Organizes the storage and retrieval of data persistence Provides way of sharing persistence data across different applications Provides easy way of accessing the persistence data to other application via JDBC Provides a process of reducing the persistence data to its canonical form using Normalization RDBMS
- 14. Slide 14 www.edureka.co/persistence-with-hibernate Object/relational mapping (ORM) refers to the technique of mapping a data representation from an object model to a relational data model with a SQL-based schema With a good ORM, you have to define the way you map your classes to tables once, which property maps to which column, which class to which table, and so forth With a good ORM, you can take the plain Java objects you use in the application and tell the ORM to persist them. This will automatically generate all the SQL needed to store the object An ORM allows you to load your objects just as easily: A good ORM will feature a query language too ORM
- 15. Slide 15 www.edureka.co/persistence-with-hibernate Provides a simple API for storing and retrieving Java objects directly to and from the database Non-intrusive: No need to follow specific rules or design patterns Transparent: Your object model is unaware ORM using Hibernate JavaObject int id; String name; String getName() int getId() void setName(String) SQL Table id [int] primary key, name [varchar(50)], Magic Happens Here (O/R Mapper – i.e. Hibernate)
- 16. Slide 16 www.edureka.co/persistence-with-hibernate Hibernate Layer in Application Presentation Layer Service/Business Layer Persistence Layer ORM/Hibernate Domain Model Database
- 17. Slide 17 www.edureka.co/persistence-with-hibernate Benefits of Hibernate Technical benefits: Generation of SQL statements . Easy mapping of relational database tables to domain entities Database independent Effective caching framework Business benefits: An open source framework Faster development time Support for multiple database vendors
- 18. Slide 18 www.edureka.co/persistence-with-hibernate Hibernate Skills Hibernate Tools – Enables RDBMS mappings & associations with domain objects ,hence should have knowledge on databases SQL Skills – Demonstrates the traditional SQL skills to understand table relations Coding Skill – Should possess java coding skills in using annotations & xml mappings for domain objects OOP Skills – Should possess Object oriented programming skills to deal with Hibernate inheritance and polymorphism Skills Products Database MySQL ,Oracle or any RDBMS vendor Coding Java Configuration Management Eclipse , Hibernate tools SQL MySQL ,Oracle or any RDBMS vendor Hibernate Skill Matrix
- 19. Slide 19 www.edureka.co/persistence-with-hibernate Complexity of Impedance Mismatch Objects Database Entries Student Course Takes Enrolls Registration Report Card Tuition Bill Class Schedule Student ID Course Number Grade Student ID Course Number
- 20. Slide 20 www.edureka.co/persistence-with-hibernate Impedance Mismatch Solution Combination of OO and Relation languages solves impedance mismatch Building an Object Oriented Database Management System (OODBMS) Addressing problems through entity structures Usage of XML Databases Matching table with object entities
- 21. Slide 21 www.edureka.co/persistence-with-hibernate Impedance Mismatch - Hibernate Provides an effective ORM approach to resolve impedance mismatch Entity beans mapping to tables in database Each instance of entity bean maps to a row in a table Mapping of java data types to relational data types Controls database transactions with entitles ORM/Hibernate JAVA Objects JAVA Objects JAVA Objects
- 22. Slide 22 www.edureka.co/persistence-with-hibernate Use - Case of Hibernate MySQL MSSQL PostgreSQL U S E R C H O I C E An Ecommerce App
- 23. Slide 23 www.edureka.co/persistence-with-hibernate An Ecommerce App Use - Case of Hibernate (Contd.) User User User Databases ?
- 24. Slide 24 www.edureka.co/persistence-with-hibernate Use - Case of Hibernate (Contd.) If they allow user choice databases then how to abstract each and different queries in the underlying database. How this can be customized and what about searching mechanisms
- 25. Slide 25 www.edureka.co/persistence-with-hibernate Use - Case of Hibernate (Contd.) User User User Databases ORM tool and database independent Handles transaction demarcations Provides enhanced search library
- 26. Slide 26 www.edureka.co/persistence-with-hibernate Hibernate Tools An integrated suit plugin of eclipse Core layer of Jboss tools Components Usage Mapping Editor 1. Editor for mapping hbm files. 2. Auto completion and Syntax highlighting Console 1. Helps to configure database connections 2. Used to execute HQL queries. Reverse Engineering 1. Generates domain classes 2. Generates mapping files and annotated classes Wizards 1. Generates hibernate cfg files. 2. Console configurations. Ant task 1. Runs schema generation 2. Java code generation
- 28. Slide 28 www.edureka.co/persistence-with-hibernate Course Topics Module 1 » Introduction to ORM and Hibernate Module 2 » Persistence and Session Factory Module 3 » Association, Mapping & Inheritance Module 4 » Criteria and Query Language Module 5 » Transactions ,Filter and Performance Module 6 » Search and Validation Framework Module 7 » OGM, NoSQL and Spring Module 8 » Project
- 29. Slide 29 LIVE Online Class Class Recording in LMS 24/7 Post Class Support Module Wise Quiz Project Work Verifiable Certificate www.edureka.co/persistence-with-hibernate How it Works?
- 31. Slide 31 Course Url