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Hibernate and EJB 3.0 - Developing Java Relational Persistence Applications
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Duration:
Three days
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This course is built for experienced Java developers, architects, and
designers.
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Developers
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Designers
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Architects
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Consultants
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Audience should know Java and have a working knowledge of relational
database and SQL.
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Description
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Hibernate is an open source object/relational mapping framework for Java.
It is lightweight, yet powerful enough to relieve the developers from
most of the manual work otherwise needed in handling data persistence.
This course covers all aspects of using hibernate in developing Java
relational persistence applications, from configuration, defining
mappings, writing complex queries, to employing best practices.
We also look at the new EJB 3.0 specifications and the annotation based metadata.
At least 60% of the time will be devoted to labs.
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Objectives
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Upon completion, students will be able to:
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Understand the Hibernate framework architecture
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Write Hibernate configuration file
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Write Hibernate mapping files
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Define persistence classes
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Write queries with Hibernate Query Language (HQL)
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Understand the EJB 3.0 persistence model
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Learn best practices in using Hibernate to build real world applications
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Course Outline
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Overview
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Overview of O/R mapping
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Overview of Hibernate architecture
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Setting up and running your first Hibernate application
Configuring Hibernate
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Hibernate configuration property file
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Hibernate configuration XML file
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Database dialects
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Obtaining a SessionFactory
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User-provided JDBC connection
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Using code generation tool
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Using schema generation tool
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Using mapping file generation tool
O/R Mapping
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Overview of the mapping file
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The id element and primary key
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Id generation methods
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Composite id
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Hibernate data types
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Custom value types
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Mapping for collections and associations
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Mapping for rich associations
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Component mapping
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Inheritance mapping
Manipulating and Querying Persistent Data
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Persistent classes
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Loading an object
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Find methods
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The Query interface
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Performing CRUD operations
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Criteria Queries
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Using native SQL query
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Using lifecycle and interceptor callbacks
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Transactions and concurrency
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The Hibernate Query Language (HQL)
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The select clause
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The from clause
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The where clause
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Expressions
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Aggregate functions
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Sorting, grouping, etc.
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Subqueries
EJB 3.0
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Overview of EJB 3.0
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Bean Class and Business Interface
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Session Beans and MDBs
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Entity Beans
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EJB QL and O/R Mapping
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Metadata Annotations
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Deployment Descriptors
Performance and Best Practices
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Collections and performance
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Cache
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Misc. tips and tricks
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