The document provides an overview of the Java EE Developer Course offered by MyExamCloud. It discusses the history of computer applications and how they have evolved from single-tier mainframe models to modern multi-tier architectures. It then describes the key concepts of the Java EE platform, including its component-container model, N-tier architecture, and how it supports the development of scalable, portable enterprise applications. The course topics are outlined which cover Java EE tiers, components, APIs and application assembly/deployment.

1. MyExamCloud
Java EE Training
Java EE Developer Course
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2. MyExamCloud
Introduction to Java Platforms
1
Trial Session
Course Topics
2 History of computer applications
Introduction to Java EE Platform
• Java EE Tiers
• Java EE application model
• Java EE Containers
• Java EE Components
• Java EE Web Service
• Java EE APIs
• Java EE App Assembly and Deployment
4
3 Web Server and Application Server
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3. MyExamCloud
Java SE
Java Platform,
Standard Edition
Java EE
Java Platform,
Enterprise Edition
Java ME
Java Platform,
Micro Edition
Java FX
Rich client application
development
Introduction to Java Platforms
Java programming language platforms
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4. MyExamCloud
1 Single Tier
2 Two Tier
3 Three Tier
N N-Tier
Logical grouping of application components.
Presentation Tier
Login Screen, Search Screen, Account Screen, etc.
Business Logic Tier
LoginEvaluator, SearchProcessor, AccountManager
Data
Login Table, Account Table
What are tiers?
History of computer applications
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Terminal Terminal
Order Processing Application
Centralized model as opposed to distributed
model.
Presentation, Business, Logic and Data Access
are intertwined in one monolithic mainframe
application.
Dump terminals are directly connected to
mainframe.
No client side management is required.
Difficult for updates, maintenance and code
reuse because presentation, data model,
business logic are intertwined.
Single Tier – Mainframe based
History of computer applications
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6. MyExamCloud
Data Source
Client Applications Fat clients talking to back end database.
SQL queries sent and raw data returned.
Presentation, Business Logic and Data Model
processing logic in client application.
DB Product independence compared to single tier
model
Difficult for updates and maintenance.
Updates have to be deployed on all clients.
Since data model is tightly coupled to every client if
DB schema changes, all clients need to change the
data access logic.
Two Tier – Fat Clients connected to database
History of computer applications
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Data Tier
Application Tier
1. Presentation Tier
2. Application Tier
3. Data Tier
Presentation Tier
Three Tier
Introducing Browser and Web server
History of computer applications
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8. MyExamCloud
Data Tier
Application Tier
Presentation Tier
Three Tier
Introducing Browser Web server
No need to maintain any logic on
client machine.
Presentation, Business Logic and
Data Access logic are handled in
common server.
Server in turn connected with
database.
Zero Client Management
History of computer applications
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9. MyExamCloud
Java EE Server Machine Data Server Machine
Business Tier
Web Tier
Client Machine
(Client Tier)
EIS Tier
N-Tier (Introducing Component-Container model & Application Server)
History of computer applications
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10. MyExamCloud
Distributed architecture that involves multiple tiers.
The Client Tier is the point from where the users connect to the Application.
The Presentation Tier is used to host the presentation components and manage session
for each User.
The Business Logic Tier is where the business application processing takes place.
The Integration Tier handles the connection to database, inserting, retrieving, and
updating data into the data tier.
The EIS Tier is where the applications data is persisted in relational databases or legacy
System
N-Tier (Introducing Component-Container model & Application Server)
History of computer applications
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11. MyExamCloud
The program to serve presentation (UI pages) to clients. The clients are typically
HTML browsers or desktop applications or applets or mobile Apps.
Presentation Components
The program which handles business logic with the help of back-end data. Typical
case study: Transfer Fund component in a banking application.
Business Logic Components
The program which handles read/write operation on back-end data or an service
end point which interacts with other systems.
Integration API or Programs
Web Server = Runs Presentation Components Application Server = Runs all of the above Components
Web Server and Application Server
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Web Server
Server program which serves content using the http
(or https) protocols
Serves both static and dynamic contents
Most web servers supports scripting and web
languages
Example: Perl, PHP, ASP, JSP..etc
Web Server and Application Server
HTTP Request
HTTP Response
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13. MyExamCloud
Application Server
Web Server and Application Server
An Application Server behaves as Web Server with
http protocol and it support other protocol as well.
It supports component-container model approach.
It offers containers with system-level services.
Developer can code & deploy only components.
Example: EJB Containers, offers many system level
services to business logic like session management,
transactions, security, persistence , remote
accessibility, Resource Pooling etc
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14. MyExamCloud
Java EE is the platform to develop, deploy and manage component-based
enterprise applications.
Component Container Model
Java EE is the platform to develop, deploy and manage N-Tier, web-enabled &
server centric applications suitable for cloud deployment. Supports DevOps tools
for development and deployment.
N-Tier Architecture
The Java EE is open and standard based platform to develop, deploy and manage
high-scalabale enterprise or cloud applications.
Open and Standard
Introduction to Java EE
Web Server = Runs Presentation Components Application Server = Runs all of the above Components
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15. MyExamCloud
Introduction to Java EE
Java EE Application Model
Proven portability, security and developer productivity
Better control and management at middle tier
Defines an architecture for implementing services as n-tier applications that delivers all
non functional requirements (scalability, accessibility, manageability, security,
performance.. etc)
Developer
Just concentrate on coding business and presentation logic
Java EE Platform
Offers standard system services
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16. MyExamCloud
Introduction to Java EE
Java EE Tiers
Distributed multi-tiered applications
Client Desktop
Client-tier components run on the
client machine
Browser, Java Applet, Java Webstart
Client
Web Tier
Web-tier components run on the
Java EE server
Servelt, HTML, JSP, JSF, JSTL etc…
Web
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17. MyExamCloud
Introduction to Java EE
Java EE Tiers
Distributed multi-tiered applications
i
Business Logic Tier
Business-tier components run on
the Java EE server.
Session EJB, MDB
Business
Integration Tier
JPA, JMS, CORBA, Web Service,
DAO, JNI, Java-IDL, JCA
Inte
gration
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18. MyExamCloud
Introduction to Java EE
Java EE Tiers
Distributed multi-tiered applications
i
EIS Tier
Enterprise information system
(EIS)-tier software runs on the EIS
server.
Database, Flatfiles, Legacy Systems
EIS
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19. MyExamCloud
https://www.myexamcloud.com/onlineexam/1z0-900-mock-exams-ocp-java-ee-
aplication-developer.course
Take Java EE Certification Course
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