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EC511
Java Pet Store Demo
Chandra Donipati
December 9, 2004
Application Overview
Source: Designing Enterprise Applications with the J2EETM Platform
1
Application Architecture
The Pet Store Demo Consists of the following sub applications:

Pet Store Website

Order Processing Center (OPC)

Administration Application

Supplier
2
Pet Store Website
Source: Designing Enterprise Applications with the J2EETM Platform
3
Order Processing
Source: Sun Microsystems (http://java.sun.com/blueprints/webservices/using/webservbp8.html)
4
Order Processing – Workflow
Source: Designing Enterprise Applications with the J2EETM Platform
5
Order Processing – Messaging
Source: Sun Microsystems (http://java.sun.com/blueprints/webservices/using/webservbp8.html)
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Java Message Service (JMS)
 Messaging is a method of communication between software
components or applications.
 The JMS is a Java API that allows applications to create, send,
receive, and read messages.
 Enables ‘loosely coupled’, ‘Asynchronous’ and ‘Reliable’
communication
 An integral part of J2EE Platform (1.3 onwards)
 Supported by most of the Middleware vendors
7
JMS API Architecture
Source: The J2EETM 1.4 Tutorial
8
JMS Messaging
Point-to-Point
Publish/Subscribe
Source: The J2EETM 1.4 Tutorial
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Order Processing - JMS
Source: Sun Microsystems (http://java.sun.com/blueprints/webservices/using/webservbp8.html)
10
Web Services
 A software application, accessible on the Web through an URL
 Accessed by clients using XML-based protocols, such as Simple
Object Access Protocol (SOAP)
 Clients access a Web service application through its interfaces and
bindings, which are defined using XML artifacts, such as a Web
Service Definition Language (WSDL) file
 A Web service is a service-oriented architecture, which is simply a
collection of services that communicate with each other (and with
end-user clients) through well-defined and well-known interfaces.
11
Web Services
Source: W3C Working Group on Web Services Architecture
12
Web Services
Source: W3C Working Group on Web Services Architecture
13
Order Processing – Web Services
Source: Sun Microsystems (http://java.sun.com/blueprints/webservices/using/webservbp8.html)
14
Questions?
Thank You