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Web App Devt Using JEE, Enterprise JavaBeans and JPA

at Software Skills Training - Los Angeles

Course Details
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Los Angeles, Downtown/Northeast
Exact location will be emailed
to registrants
Los Angeles, California
Class Level: Intermediate
Age Requirements: 18 and older
Average Class Size: 8

What you'll learn in this java class:

This hands-on course provides participants with the knowledge and experience required to develop and deploy Enterprise JavaBeans, Web Services and robust JEE (Java Enterprise Edition) web applications. The Enterprise JavaBeans 3 specification is a deep overhaul of the EJB specification that improved the EJB architecture by reducing its complexity from the developer's point of view. It leverages annotations and Object-Relational Mapping (ORM) technologies to eliminate the dependence on complex EJB APIs, allow POJO (Plain Old Java Object) based development, and provide an effective technology for creating distributed, transactional components including mapping relational data to an object schema. The EJB 3.2 release is part of the JEE 7 specification and adds additional refinements and capability.

This course covers architectural design issues as well as specific coding models for EJB3 components. It starts with the basic concepts and APIs of EJB and then continues on with complex topics such as message driven beans and transactions. Newer concepts such as the use of annotations and the use of CDI / Dependency Injection to initialize references are covered in depth. The course also includes thorough coverage of managing persistence using the Java Persistence API 2 (JPA2). Security, transaction management, inter-component communication and deployment issues are discussed in detail, with hands-on labs to solidify understanding. The course includes content on how to expose EJBs as standards-based (JAX-WS, SOAP/Http) and REST-based web services.

Comprehensive hands on exercises are integrated throughout to reinforce learning and develop real competency with this complex technology. Students will come away with an understanding of the role and architecture of the most important containers in the Java EE specification: the Web Container (which hosts HTML pages, Servlets and JSP Pages) and the EJB Container (which hosts Enterprise JavaBean components).

Prerequisites: Java SE programming experience and an understanding of object-oriented design principles. Fundamental knowledge of XML is helpful but not required. HOTT's course Java Programming or equivalent knowledge provides a solid foundation.

Course Syllabus:

  • Overview of EJB and Java Persistence API (JPA)
    - Role of EJB in the Java EE Architecture
    - Role of Containers
  • EJB 3.2 Overview
    - Session Beans
    - Persistent Entities
    - Message Driven Beans
    - Entity Beans
    - Server Setup and Introduction
    - Annotations and EJB 3.2
    - Annotation Syntax
    - Annotation Placement

Session Beans
  • Session Bean Overview
    - Services Provided (Stateless and Stateful Beans)
    - Defining a Session Bean - EJB 3 Annotations
    - Bean Implementation (Remote and Local Business Interface)
  • Packaging and Deployment
    - ejb-jar file (Deployment Descriptors in EJB 3)
    - EAR file
    - JEE 6/JEE 7 WAR Files and EJB
    - The EJB Container
    - Creating a Stateless Session Bean
  • JNDI Overview
    - Distributed Naming and Lookup
    - Context and InitialContext
    - Using JNDI
  • Writing an EJB 3 Client
    - Client View of a Session Bean
    - JEE 6 Portable EJB Lookup Names
    - Running the Client
    - Creating an EJB Client

Additional Capabilities
  • Resources and Dependency Injection
    - EJB referencing another EJB
    - Injecting with CDI/@Inject and with @EJB
    - CDI Qualifiers and Producers 
    - Referencing Resources (Environment Entries)
    - Connection Factories (DataSource and others)
    - Using Dependency Injection
    - Creating and Using Environment Entries
  • Session Bean Lifecycle and Interceptors
    - Stateless Session Bean Lifecycle
    - Business Method Interceptors (InvocationContext, Lifecycle Callback Interceptors, Interceptor Classes)
    - Working with Interceptors
  • Asynchronous Methods and Singleton Session Beans
  • Stateful Session Beans
    - Overview
    - Defining Client Relationship
    - Lifecycle, Activation and Passivation
    - Implementing Stateful Session Beans
  • Timer Service
    - Programmatic Timers
    - Calendar-Based Timers
    - Working with Timers

Message-Driven Beans
  • Overview of Messaging Systems
    - Loose Coupling
    - Pub/Sub, Point2Point
  • Overview of JMS API
    - JMS Architecture
    - ConnectionFactory and Destination
    - JMS Producer and Consumer Client Example
    - Using JMS Messages
  • Message-Driven Beans (MDB)
    - Features and Benefits
    - @MessageDriven and MDB Architecture
    - Configuring with activationConfig
    - State Diagram and Interceptors
    - Working with Message Driven Beans

Transactions and Security
  • Overview of Transactions and Transactional Systems
    - ACID, Transaction Managers, Resource Managers
  • Transactions in EJB 3
    - Declarative Transaction Management
    - Transaction Attributes and Transactional Scope
    - Transaction Scenarios and Bean-Managed Tx
    - Working with Transactions
  • Security
    - Java EE Security Overview (Role-based)
    - @RolesAllowed, @PermitAll, Role "**"
    - Programmatic Security
    - Integrating EJB and Java EE Security

Exception Handling
  • Exceptions Overview
    - Checked and Unchecked Exceptions
  • Exceptions in EJB 3
    - Application Exceptions, System Exceptions
  • EJB 3 Best Practices
    - When to Use Coarse-Grained Business Interfaces
    - Session Façade
    - Transaction Guidelines
    - Clustering

Introduction to Java Persistence API V2 (JPA2)
  • Overview
    - Persistence Layers
    - Object-Relational Mapping (ORM)
    - JDBC Overview
    - JPA Overview
  • Mapping with JPA
    - Entities and @Entity, IDs and @Id,
    - Generated ID Values
    - Basic Mapping Types
    - Mapping an Entity Class
  • EntityManager and Persistence Context
    - Persistence Unit and persistence.xml
    - Persisting to the DB, the EntityManager
    - Injecting an EntityManager
    - Retrieving Persistent Entities
    - Using the EnityManager to Persist and Find an Entity
  • Exploiting Mappings
    - Refining your Mappings

Updates and Queries
  • Inserting and Updating Data
    - Transient, Persistent, Detached, Removed
    - Persisting New Entities, Updating a Persistent Instance
    - Inserting and Updating an Entity
  • Querying and JPQL
    - Fundamental Query Syntax
    - Object Based Queries (SELECT Statements, WHERE Clause)
    - Named Queries
    - Creating and Using JPQL Queries
  • Criteria API
    - Criteria Querying
  • The Persistence Lifecycle
    - JPA Entity States
    - Lifecycle and Persistence Context
  • Versioning and Optimistic Locking
    - Locking Concepts
    - Detached Entities
    - Creating Versioned Entities
    - Optimistic Locking

Entity Relationships
  • Relationships Overview
    - Object Relationships 
    - Participants
    - Roles
    - Directionality
    - Cardinality
  • Relationship Mapping
    - Mapping Overview (1-1, 1-N, N-1, N-N)
    - Unidirectional and Bidirectional
    - Mapping One-One, One-Many
    - Join Columns
    - Relationship Inverses
    - Mapping Entity Relationships
    - Many-Many Relationships
    - Lazy and Eager Loading
    - Cascading
    - Querying Across Relationships (Inner Joins, Outer Joins, Fetch Joins)
  • Inheritance Mapping
    - Entity Inheritance
    - Single Table
    - Joined (Table per Subclass)
    - Table per Concrete Class
    - Pros and Cons of Inheritance Mapping
  • Other Mapping Capabilities
    - Embedded Objects
    - Compound Primary Keys
    - Element Collections

Additional JPA Capabilities
  • Advanced Queries
    - Projection
    - Aggregation
    - Bulk Update/Delete
  • Extended Persistence Contexts
  • XML Mapping Files
  • EJB and Java SE
  • Best Practices
    - Primary Keys
    - Named Queries
    - Lazy/Eager Loading
    - Transactional Semantics
    - Encapsulation
    - Report Queries

Exposing EJBs as Web Services
  • Overview of Web Services
  • Advantages of Web Services
  • Web Services Technologies: SOAP and WSDL
  • Web Services in Java EE and Java SE
  • SOAP/Http Web Services
  • Working with WSDL Files
  • Writing a JAX-WS Web Service
    - The Service Implementation Bean
    - JAX-WS Deployment Descriptors
    - JAX-WS Client-Side Programming
    - JAX-WS Tools
  • RESTful Web Services

Still have questions? Ask the community.

Refund Policy
Tuition includes all course materials. Students may withdraw before the second day of class to receive a 100% refund, provided course materials are returned to the instructor. Prorated refunds may be granted for withdrawals after the first day.

Cancellations and Changes: There are no cancellation fees.

Attendance Requirements: Students must attend each day of a course and successfully complete hands on exercises in order to receive a certificate of completion. If a student wishes to retake any portion of a class that he or she completes, the student may do so within 12 months at no extra cost.

Intended Audience: Software Skills Training provides IT training designed for technology professionals who wish to quickly upgrade their computer skills. In most states, the employer bears all training costs.


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Software Skills Training

SST delivers instructor-led technical training across the United States, Canada and the United Kingdom. Whether you attend in person, remote-live or on-demand, our classroom-based training philosophy zeroes in on your ability to work more productively and with higher quality results after training.


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