The life cycle of the project involves the following three stages:
You learned about these phases in the earlier projects. Therefore, we will discuss only the project execution phase, which is different for each project.
The Project Execution Phase
In the project execution phase, the development team creates the design of an application. After they create the design, they develop th application. The project execution phase consists of the following stages:
Analyzing the Requirements
During the requirements analysis phase, the development team at Choco-Bar analyzed the stated requirements for the new feature. They decided to create a Web service to address this because the Reminder service needs to be accessible to all the affiliates of the company. Using Web services was the best option because each of these affiliates would host their sites by using different technologies.
Based on the requirement analysis, the development team arrived at the following specifications for the Web service:
Creating the Design of the Application
During the design phase of the application, the development team decides upon the functionality to be implemented and the technology to be used. In this project, the development team decided to create the Web service by using Oracle JDeveloper because the Web site is created by using J2EE.
During the construction phase, the development team constructs the application. The primary tasks that the team does in the construction phase are as follows:
Having learned about the Development Life Cycle (DLC) of the project, you will now learn about the software that you need to install to run the IBM toolkit.
The Oracle9iAS Containers for J2EE (OC4J) Developer Preview provides a complete J2EE environment, which you can use to develop and deploy J2EE applications. In this chapter, you will learn how to publish Java classes as Web services using OC4J and JDeveloper.
Installing OC4J and JDeveloper
Both OC4J and JDeveloper products are download as open source. After you have downloaded them, follow these steps to install them:
Tip?/td>Before running the preceding command, ensure that the system PATH includes the <Java_HOME>?in folder.
To start OC4J from the J2EEHome folder, execute the following command:
To stop OC4J, use this command:
To set up JDeveloper, just unzip the downloaded zip file into a folder. For example, assume this folder to be Jdev9i.
To run JDeveloper, run the file JdevW.exe from the folder Jdev9ijdevin.
Oracle9i JDeveloper and Web Services
The Oracle9i JDeveloper IDE supports Oracle9iAS Web services. The IDE has the following features:
Oracie9i AS Web Services Architecture
The Oracle9iAS Containers for J2EE (OC4J) provide support for building Web services from existing code. To use Oracle9iAS Web services, you need to deploy a J2EE .ear file to Oracle9iAS. The J2EE .ear file contains a Web Services Servlet configuration, and it includes an implementation of the Web service. Oracle9iAS Web services supplies the servlet classes, one for each supported implementation type. At runtime, Oracle9iAS uses the servlet classes to access the user-supplied Web service implementation.
The Oracle9iAS Web Services Servlet classes support the following Web services implementation types:
The OC4J Web services support the following data types:
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Basics Of Xml
Basics Of Web Services
Introduction To Soap
Introduction To Uddi
Introduction To Wsdl
Creating A Web Service Using The Microsoft Soap Toolkit
Building Web Applications On The .net Platform
Creating An Asp.net Web Service
Creating A Web Service From An Interface
Introduction To The Atl Server
Creating A Web Service Using The Atl Server Library
Design And Creation Of The Knowledge Share Web Service
Introduction To Java Xml Technologies
Developing Java Web Services
Design And Creation Of A Web Service Using The Ibm Toolkit
Introduction To Mobile Applications
Creating A Mobile Application That Consumes A Web Service
Web Services Development With Jdeveloper
Creating Web Services Using Perl
Integration Of Xml Web Services With The Office Xp And Sql
Server 2000 Toolkits
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