Hibernate Essentials
JB167 - Hibernate Essentials
Descrição:
Hibernate Essentials is targeted toward Java developers who must become competent with the Hibernate or the Java Persistence API object/relational persistence and query service implementation. The primary audience is intended to be Java developers who work with SQL-based database systems or database developers who are looking for an introduction to object-oriented software development. Database administrators who are interested in how ORM may affect performance and how to tune the performance of the SQL database management system and persistence layer will also find this course of value. This course covers the JBoss, Inc. implementation of the JSR-220 sub-specification for Java Persistence and it covers the foundational APIs of version 3.x of the JBoss, Inc. Hibernate product, or simply, Hibernate 3.
Tópicos:- Understanding object/relational persistence
- Getting started with Hibernate
- Mapping Persistent Classes
- Working with Persistent Objects
- Transactions and Concurrency
- Advanced Mapping Concepts
- Retrieving Objects
- Queries
- Caching
- Application Design and Architecture
In this module persistent data management in the context of object-oriented applications is defined. The relationship of SQL, JDBC and Java, specifically the underlying technologies and standards that Hibernate is built upon, are discussed. The software development challenges that embody the "object/relational paradigm mismatch" are individually identified. Additional generic problems that are encountered when creating object-oriented software clients to relational databases are also discussed. This module concludes with presenting the basic concepts of object/relational mapping and the capabilities provided by Hibernate.
This module provides the student with the information necessary to complete a simple Hibernate project. The student will be exposed to the Hibernate core programming interfaces and will then be shown how to integrate a Hibernate application with "non- managed" and "managed" environments.
This module explains how to map the Plain Ordinary (Old) Java Objects of a rich domain model to Hibernate metadata. Mapping class inheritance hierarchies and fine-grained models will also be discussed. The module will conclude with an introduction to class association mappings.
In this module, the student will learn about The lifecycle, or the various "states" of persistent objects in a Hibernate application. The student will begin working with the Session persistence manager and understanding transitive persistence.
In this module, the student will learn how long-running application transactions can be associated with the Hibernate notion of a "unit of work". Database transactions and locking will be discussed in the context of a long-running application transaction.
The Hibernate type system and how it can be extended to create custom mapping types is one of the topics explained in this module. The student is provided an introductory overview of advanced mapping concepts such as collection mapping and how to map one-to-one and many-to-many associations.
In this module, the student is introduced to the basic concepts, concerns and means of retrieving object state from persistent store with Hibernate. This section introduces the student to fetching strategies and how to discern and solve the "n+1" Selects problem.
HQL, criteria, and native SQL queries are covered in detail. Once these foundational APIs are presented, the student is shown advanced reporting techniques, the use of dynamic queries and how to optimize runtime fetching.
In this module, an explanation for the use of cache is provided. The student will learn about use of Hibernate first- and second-level cache and will be shown how the caching system is used in practice through examples from the CaveatEmptor application.
In this module, the student is introduced to some foundational best practices for writing layered applications with Hibernate. This section will address the use of Servlets and integration with Hibernate and EJBs in managed environments. Creating implementations using application transactions, handling legacy data and using audit logging are practices which are also addressed.
Duração: 24 horas
