Spring Hibernate Course

Spring Hibernate

 Course Overview

Working with both Object-Oriented software and Relational Database is complicated task with JDBC because there is mismatch between how data is represented in objects versus relational database. So with JDBC, developer has to write code to map an object model’s data representation to a relational data model and its corresponding database schema. Hibernate is flexible and powerful ORM solution to map Java classes to database tables. Hibernate itself takes care of this mapping using XML files so developer does not need to write code for this.

Hibernate is an ORM (Object-Relational Mapping) framework. It maps your database tables to the Java classes, i.e., the entities. It internally uses JDBC. It provides you with the flexibility of changing the database, if needed.

The course is appropriate for all Java developers: beginners to advance.

Must have strong experience with programming skills.

After completing the course you get hired as developer, system analyst In the IT companies like

Introduction to Hibernate, Getting started with Hibernate quickly, Querying, The Persistence Lifecycle, Optimistic Locking / Versioning, Relationships, Inheritance Mapping, Additional Querying Capabilities, The Criteria API, Hibernate and Java Persistence / EJB 3, Advanced Topics.

Spring Hibernate Course Syllabus

Introduction to Hibernate

  • Issues with Persistence layers and Object-Relational Mapping (ORM)
  • Hibernate Overview and Benefits
  • Hibernate architecture overview
  • POJO (Plain Old Java Object) Based Mapping

Getting started with Hibernate quickly

  • Overview of the Hibernate distribution
  • Configuring Hibernate
  • cfg.xml file
  • Session Factory configuration
  • Connection properties, Database dialect
  • Configuration class, Session Interface
  • Hello World Program for Hibernate
  • Mapping a Class
  • Persistent Entity Class, Hibernate Mapping
  • File, Mapping the Entity Class
  • Primary keys: Id property, Generated Id
  • Hibernate Type System
  • Working with sessions and Persistent Objects
  • Logging – log4j Overview and configuration for Hibernate

Querying

  • Inserting and Updating Entities
  • HQL – Hibernate Query Language Overview
  • The Query Interface
  • Creating and working with queries
  • Named Queries, Projection Queries, Aggregate Queries

The Persistence Lifecycle

  • Transaction Overview and Transactions in Hibernate
  • Hibernate Transaction API (in Managed and Non-managed Environments)
  • The lifecycle of managed objects
  • Persistent, transient, and detached objects
  • The Persistence (Session) Context (Lifespan, Relation to Managed Objects, Propagation)
  • Contextual Sessions
  • Synchronization to the Database
  • The Session as cache

Optimistic Locking / Versioning

  • Detached Objects and Optimistic Locking
  • Versioning overview and Using Versioning
  • Locking Objects

Relationships

  • Object Relationship Overview
  • Mapping Collections of Value Objects
  • Entity Relationships: 1-N, N-1, N-N, 1-1
  • Mapping Entity Relationships
  • Uni and Bi-directional Relationships
  • The Relationship “inverse”
  • Cascading Over Relationships
  • Queries Across Relationships (Lazy and Eager)

Inheritance Mapping

  • Entity Inheritance with Hibernate
  • Table-per-class mapping
  • Table per Subclass mapping
  • Table per Concrete Class mapping

Additional Querying Capabilities

  • Projection Queries, Aggregate queries
  • Bulk updates and deletes
  • Native SQL Queries
  • Query Filters

The Criteria API

  • Overview of the Criteria API
  • Working Querying with the Criteria API
  • Query by Example

Hibernate and Java Persistence / EJB 3

  • Overview of Java Persistence / EJB 3
  • Relationship between Java Persistence and Hibernate
  • Overview of Annotations
  • Mapping Entities with Hibernate Annotations
  • The EntityManager, Persistence Context and Persistence Unit
  • Working with Transactions – EntityTransaction, Managed, and Unmanaged Environments
  • Inserts and Updates
  • JPQL – Java Persistence Query Language
  • Versioning
  • Relationships

Advanced Topics

  • Components and Multi-Table Mapping
  • equals() and hashCode()
  • Caching and Efficiency
  • Design Consideration