December 9, 2004

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EC511Java Pet Store DemoChandra Donipati

• December 9, 2004

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Application Overview
Source Designing Enterprise Applications with
the J2EETM Platform
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Application Architecture

• The Pet Store Demo Consists of the following sub
  applications
• Pet Store Website
• Order Processing Center (OPC)
• Administration Application
• Supplier

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Pet Store Website
Source Designing Enterprise Applications with
the J2EETM Platform
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Order Processing
Source Sun Microsystems (http//java.sun.com/blue
prints/webservices/using/webservbp8.html)
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Order Processing Workflow
Source Designing Enterprise Applications with
the J2EETM Platform
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Order Processing Messaging
Source Sun Microsystems (http//java.sun.com/blue
prints/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

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JMS API Architecture
Source The J2EETM 1.4 Tutorial
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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/blue
prints/webservices/using/webservbp8.html)
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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.

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Web Services
Source W3C Working Group on Web Services
Architecture
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Web Services
Source W3C Working Group on Web Services
Architecture
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Order Processing Web Services
Source Sun Microsystems (http//java.sun.com/blue
prints/webservices/using/webservbp8.html)
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Questions?
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Thank You