EJB

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Learn the fundamentals of Enterprise JavaBeans (EJB) and how to develop scalable, transactional, and secure enterprise applications using Java.

EJB Training Syllabus

Curriculum Designed by Experts

Overview

Enterprise Applications
Containers and Objects
Three Containers
Remote Connectivity
Scalability and Availability
Security
Transaction Control

Architecture

What is an EJB?
Types of Beans
Inversion of Control
The Bean-Type Annotations
Dependency Injection
The @EJB Annotation
Development Cycle and Roles

Session Beans

Interface/Implementation Split
Stateful vs. Stateless
The @Stateless Annotation
Lifecycle and State Transitions
Session Context
The @Stateful Annotation
State Transitions
Singletons and Pools

Entities

The Java Persistence API
Persistence Annotations
Configuration by Exception
ORM Annotations
The EntityManager
Acquiring and Using the EntityManager
persistence.xml
@Enumerated and @Temporal Types

Associations

Associations, Cardinality, and Ownership
Annotations
Unidirectional vs. Bidirectional
The @Embedded Annotation

Java Persistence Query Language

OO Query Languages
The FROM Clause and Directionality
The WHERE Clause
The SELECT Clause
Joins
Aggregates and Grouping
Ordering

Dependency Injection

Interdependent Systems
The Factory Pattern
The Service Locator Pattern
Dependency Injection
Injection by Magic?
Injection by Type
Injection by Name
The Component Environment
Deployment Descriptors
Impact on Stateful Session Beans
JNDI
Connecting to a Remote Bean
Using mappedName
Who Can Declare Dependencies

Message-Driven Beans

Asynchronous Messaging
The Java Message Service
Message-Driven Beans
Message Types
Injecting JMS Queues

Transactions

ACID Transactions
The EntityTransaction Interface
EJB Transaction Attributes
Persistence Contexts
Extended Persistence Contexts
Isolation Levels
Application-Managed Persistence
The SessionSynchronization Interface
Impact on JMS and MDBs

Exception Handling

Java Exceptions
Remote Exceptions
EJB Exception Handling
System Exceptions
Application Exceptions
Transaction Control

Security

Authentication and Authorization
Declarative Authorization
Abstract Roles
Concrete Realms
Programmatic Authorization
Run-As Identity

Interceptors

EJB and AOP
The Intercepting Filter Pattern
EJB Interceptors
Annotating Interceptor Classes
The InvocationContext Interface
Binding Interceptors to Targets
Shared Lifecycle and Context
Interceptors and MDBs

Timers

The EJB Timer Service
The TimerService Interface
The Timer Interface
Timeout Methods
Timer Handles
Transactions and Timers

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