This training course provides students with the knowledge needed to use the Hibernate Object/Relational Mapping (ORM) framework to implement the persistence layer of J2EE applications.
Upon completion of this course, you should be able to:
• Understand the concepts of object/relational mappings
• Understand the architecture of Hibernate
• Integrate and configure Hibernate in J2EE applications
• Create Hibernate mappings
• Retrieve and update persistent objects using Hibernate
• Use HQL (Hibernate Query Language) and criteria queries
• Know when to use database and application transactions
• Understand the Hibernate caching architecture
• Tune performance of Hibernate operations
• Use various Hibernate tools
Course Outline
1. Introduction to Hibernate
• Topics
• What is Hibernate?
• Relational Database Technology
• Accessing Relational Databases from Java
• Domain Models
• Comparing Object and Relational Models
• Identity Modeling
• Granularity of Objects and Tables
• Association Modeling
• Navigation
• Inheritance
• What is Object/Relational Mapping?
• Advantages of using an ORM Tool
• Architecture of Hibernate
• Hibernate API
• Extension Interfaces
• Hibernate Configuration
• Hibernate Mappings
• Hibernate Properties
• Hibernate XML Configuration Files
• Non-Managed and Managed Environments
• Configuration in a Non-Managed Environment
• Configuration in a Managed Environment
• Binding SessionFactory to JNDI
• A Simple Example
• Alternatives to Hibernate
• EJB Entity Beans
• Java Persistence API
• Hand-Coded Persistence Using JDBC
• Object-Oriented Databases
• Other ORM Tools
2. Basic Mappings
• Topics
• Creating the Domain Model
• Domain Model
• Domain Objects
• Hibernate Requirements
• Object Identity
• Primary Keys
• Natural Keys vs. Surrogate Keys
• Identifier Property
• Identifier Generators
• Hibernate Managed Identifiers
• Mapping Metadata
• Mapping Properties
• Property Access Strategies
• Derived Properties
• Preventing Insert/Update
• Using Database Schemas
• Quoted SQL Identifiers
• Specifying Java Packages
• Entity and Value Types
• Components
• Bi-Directional Components
• Other Component Details
• Association Mappings
• Many-to-One Association
• One-to-Many Association
• Inheritance Mapping Strategies
• Table per Concrete Class
• Table per Subclass
• Table per Class Hierarchy
3. Manipulating Persistent Objects
• Topics
• Object States
• Transient Objects
• Persistent Objects
• Detached Objects
• Object Identity
• Persisting a Transient Object
• Retrieving and Updating a Persistent Object
• Deleting a Persistent Object
• Updating a Detached Object
• Transitive Persistence
• Using save-update
• Differentiating Between Transient and Detached Objects
• HQL Queries
• Parameter Binding
• Pagination
• Named Queries
• Polymorphic Queries
• Restriction
• String Comparison
• Logical Operators
• Ordering the Results
• Join Queries
• Implicit Joins
• Where Clause Joins
• Criteria Queries
• Polymorphic Criteria Queries
• Restricting Criteria Queries
• Comparing Strings in Criteria Queries
• Using Logical Operators in Criteria Queries
• Ordering Results in Criteria Queries
• Using Joins in Criteria Queries
• Using Dot Notation to Get Component Properties
4. Advanced Mappings
• Topics
• One-to-One Associations
• Many-to-Many Associations
• Polymorphic Associations
• Entity vs. Value Types
• Built-in Mapping Types
• Using Mapping Types
• Custom Mapping Types
• Collections of Value Types
• Set of Value Types
• Bag of Value Types
• List of Value Types
• Map of Value Types
• Collections of Components
• Sorting Collections
5. Transactions, Concurrency and Performance
• Topics
• Database Transactions
• JDBC and JTA Transactions
• Hibernate Transactions
• Hibernate Transactions
• Hibernate Transactions
• Flushing the Hibernate Session
• Isolation Issues
• Isolation Levels
• Configuring the Isolation Level
• Pessimistic Locking
• Application Transactions
• Application Transaction Isolation
• Managed Versioning
• Using Existing Properties to Implement Optimistic Locking
• Caching
• Hibernate Cache Architecture
• The First-Level Cache
• The Second-Level Cache
• Cache Concurrency Strategies
• Enabling the Second-Level Cache
• Cache Regions
• Specifying a Cache Provider
• Support for Cache Providers
• Explicitly Evicting Objects From the Second-Level Cache
• Fetching Strategies
• Fetching Strategies in Mappings Single Point Associations
• Fetching Strategies in Mappings Single Point Associations
• Fetching Strategies in Mappings Single Point Associations
• Fetching Strategies in Mappings Collections
• Fetching Strategies in Mappings Batches
• Explicit Initialization of Lazily Loaded Objects
• Fetching Strategies in HQL Queries
• Fetching Strategies in Criteria Queries
• The N+1 Selects Issue
• Report Queries - Projections
• Report Queries Projections
• Report Queries Projections
• Report Queries Aggregation
• Report Queries Grouping
6. Tools and Design Techniques
• Topics
• Generating the Database Schema
• Generating the Domain Model
• Generating the Database Schema
• Using Middlegen
• Using XDoclet
• The Open Session in View Pattern
• Using a Natural Key
• Using a Composite Key
• Dealing with Database Triggers
Audience
Software designers, developers and programmers
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