Effective Persistence Using ORM With Hibernate
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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.
![Slide 7 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
Persistence 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/hibernatewebinar9june-150610122056-lva1-app6891/85/Effective-Persistence-Using-ORM-With-Hibernate-7-320.jpg)
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Effective Persistence Using ORM With Hibernate
- 1. www.edureka.co/persistence-with-hibernate Effective Persistence Using ORM with Hibernate 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 At the end of this webinar, you will be able to understand: Objectives What is Java Enterprise Java Enterprise architecture Hibernate Java EE with Hibernate Easy persistence with Hibernate Hibernate with Spring Session & Transactions using Spring & Hibernate Hibernate with search mechanism
- 3. Slide 3 www.edureka.co/persistence-with-hibernate JavaEE – Enterprise Edition Provides collection of APIs and runtime environments to support Enterprise applications Community driven software Defines standard specifications which can be implemented by vendors Provides services for i) Persistence ii) Messaging iii) Web iv) Transactions Web services support using JAXRS(Rest) and JAXWS(SOAP)
- 5. Slide 5 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
- 6. Slide 6 www.edureka.co/persistence-with-hibernate JavaEE with Hibernate Objective is to solve the complexities existed in EJB2 persistence architecture. Provided an effective Java persistence API enabling hibernate to work with different databases easily Annotations provide meta data about table column definitions at the model level. Entities are developed independent of the underlying database Derby Mysql Oracle
- 7. Slide 7 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 Persistence 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)
- 8. Slide 8 www.edureka.co/persistence-with-hibernate DEMO : Ease of Persistence Using Hibernate
- 9. Slide 9Slide 9Slide 9 www.edureka.co/persistence-with-hibernate Spring An open source framework Enables to build applications using POJO (Plain Old Java Objects) Handles the complete infrastructure required for application from end to end Makes development of JavaEE (Java EnterPrise Applications) easier Light weight and transparent Use of IOC Containers Supports ORM and Transaction Management
- 10. Slide 10Slide 10Slide 10 www.edureka.co/persistence-with-hibernate Spring with Hibernate An extensive support for ORM frameworks like Hibernate , JPA Provides complete infrastructure for any ORM layer used in the application IOC of spring handles the SessionFactory instances of hibernate Configurations of hibernate are taken care efficiently by spring application contexts Use of hibernate.cfg.xml can be taken care by spring applicationContext.xml Declarative Transaction management Built in support for exception handling
- 11. Slide 11Slide 11Slide 11 www.edureka.co/persistence-with-hibernate Spring supports two different approach for transaction management: Programmatic Transaction Management » Transactions are managed by programming codes » Highly flexible » Difficult in maintenance » Spring TransactionTemplate is used for programmatic approach Declarative Transaction Management » Transactions are handled declaratively by XML or Annotation » Will have lesser impact with the code of application » Extensive support from Spring AOP » Most widely used Transaction Management with Spring
- 12. Slide 12Slide 12Slide 12 www.edureka.co/persistence-with-hibernate Spring Aspect Oriented Programming enables to declare transaction declaratively with Aspect Aspect scatters across methods, class and even objects Can be used in xml and annotations AOP declarative transaction:- » Transaction-handling advice is created using <tx:advice/> and pointcut is defined to make transactional advice that matches all methods » Advice begins transaction on before calling the method » On successful execution of method advice commits the transaction » On failure advice rolls back Spring AOP Transaction Management <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="create"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="createOperation" expression="execution(* com.tutorialspoint.StudentJDBCTemplate.create (..))"/> <aop:advisor advice-ref="txAdvice" pointcut- ref="createOperation"/> </aop:config>
- 13. Slide 13 www.edureka.co/persistence-with-hibernate DEMO : Spring Transaction Management Using Hibernate
- 14. Slide 14Slide 14Slide 14 www.edureka.co/persistence-with-hibernate Hibernate OGM OGM – Object Grid Mapper It provides Java Persistence API (JPA) support for NoSQL Solutions Object Relational Mapping for NoSQL Databases Provides support for most of the NoSQL database types Scaling of Relational Databases with a NoSQL front end and with no change in domain model
- 15. Slide 15Slide 15Slide 15 www.edureka.co/persistence-with-hibernate Hibernate OGM - Architecture
- 16. Slide 16 www.edureka.co/persistence-with-hibernate DEMO : OGM with Hibernate
- 17. Slide 17Slide 17Slide 17 www.edureka.co/persistence-with-hibernate An Apache library Full text search capability Developed on java API Query results are returned by relevance Fast ,flexible and stable Easy to integrate lucence search functionality to application Lucene
- 18. Slide 18Slide 18Slide 18 www.edureka.co/persistence-with-hibernate One of the most base functionality of Lucene Fields in the documents are analyzed by the IndexWriter Creates/Updates the indexes Indexes created/updated are equivalently stored/updated in directory Lucene – Indexing
- 19. Slide 19Slide 19Slide 19 www.edureka.co/persistence-with-hibernate Search operation is basically carried via IndexSearcher Directory having indexes are passed to IndexSearcher IndexSearcher reads the indexes in the directory with the help of IndexReader Query to search is created using the QueryParser Search performed with IndexSearcher against the query created by QueryParser IndexSeracher returns TopDocs which contains the complete search details Lucene – Search
- 20. Slide 20Slide 20Slide 20 www.edureka.co/persistence-with-hibernate Even though Lucence provides very efficient search capabilities , suffers with several mismatches with domain object models Hibernate Search built on top of the Lucence search engine to address the short comings of lucence in domain object models Similarly to Hibernate which has been built in top of the SQL databases, Hibernate search built on top of Lucence Hibernate address the short comings of lucence in domain object models with annotations Manages entities when query made to database or as lucence query to index Hibernate Search Search Request
- 21. Slide 21Slide 21Slide 21 www.edureka.co/persistence-with-hibernate DEMO - LUCENCE APPLICATION
- 22. Slide 22 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
- 23. Slide 23 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?
- 25. Slide 25 Course Url