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Enterprise Web 2.0 with EGL

Enterprise Web 2.0 with EGL

Author: Danny Allan
Publisher: MC Press Online
Publication Date: May 2009
Subject: Computer: Business Computing & Software

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About this title
This book shows a way forward in the development of secure enterprise software. The authors describe the business implications of Web 2.0---a set of techniques for user collaboration on the Web---and describe how the computer language EGL makes developers more productive, protects a company's investment in existing software, and facilitates use of Rich Internet Applications. In addition, the book provides an overview of Web security.

Enterprise Web 2.0 with EGL:
  • Introduces a variety of concepts that are essential for understanding modern computing, including service-oriented architecture, cloud computing, and agile development
  • Demonstrates how EGL handles widespread requirements such as service creation, database access, and reporting
  • Outlines the runtime technologies supported by EGL, including Java Enterprise Edition, Windows, IBM i, UNIX, and the mainframe environments CICS, IMS, and z/OS batch
Enterprise Web 2.0 with EGL is useful for:
  • Executives, managers, and architects who seek a creative, long-term response to the complexity of application development
  • Traditional developers who need to access the latest runtime technologies
  • Students of information technology
About author
Danny Allan
Danny Allan is the Director of Security Research at IBM Rational. He has more than seven years of experience in evaluating the data protection strategies of customers worldwide. Media outlets such as Bloomberg and The Wall Street Journal have repeatedly sought his views on Web security. He holds a Bachelor of Commerce degree from Carleton University.

Contents
CONTENTS
Preface

PART I: OVERVIEW
Chapter 1: Introduction
Modes of Reliance on IT
     Support Mode
     Factory Mode
     Turnaround Mode
     Strategic Mode
IT as a Commodity
Software that Fulfills Its Role
Software that Enables a Competitive Advantage
     Web 2.0
     Service-Oriented Architecture
Grow Your Software
     Agile Development
     The Importance of Abstraction in a Computer Language
     The Importance of Wide Coverage by a Computer Language
Accentuate the Negative
     Are Enterprise Languages Disruptive?
     Do Enterprise Languages Inhibit Innovation?
     Do Enterprise Languages Have Flaws Caused by Higher Abstraction?
     Are Enterprise Languages Old News?

Chapter 2: Web 2.0
Interactive Web Sites
     Networks
     Collaboration
     Brand Image
     Revenue
     Owning and Extending Data
Rich Internet Applications

Chapter 3: Introduction to Web Security
Security Trends
Threats by Type
Security by Location
     Data in Transit
     Server-Side Security
     Client-Side Security
Use of an LDAP-Compliant Server
Security for a Rich Internet Application
     Web Servers and Application Servers
     Container-Managed Authentication
     Security Options
Risk
     Assessing Risk
     Responding to Risk

Chapter 4: Service-Oriented Architecture
Structure of a Service-Oriented Application
Aspects of a Service
     Service Implementation
     Elementary Access Details
     Contract
Loose Coupling
Service Registry
Service Level Agreement
Web and Binary-Exchange Services
Architectural Styles in Web Services
Traditional RPC-Style SOAP Services
REST Services
REST-RPC Services

PART II: WEB 2.0 SOLUTIONS WITH EGL
Chapter 5: EGL Scope
Uses of EGL
     Supported Technologies
     Runtime Environment
     Persistent Data Storage
     User Interface
     Support for Service-Oriented Architecture
     Network Communication
     Report Production
Integration with Existing Code
Integrating Multiple Products that Support EGL

Chapter 6: EGL Rich UI in Context
Multiple Tiers
Support for Old and New Programming Models
The DOM Tree
Rich UI Handler
Rich UI Editor
Embedded Handlers
Service Access
Use of Libraries
Model, View, Controller
MVC in EGL Rich UI
     Validating Form
     Validators
Form Validation, Commit, and Publish
Defining Displayable Text in an External File
Simulating Page Flow
     Switching Pages in the Simplest Case
     Switching Pages and Updating the Address Bar
Handler Communication with Infobus

Chapter 7: Services and EGL Rich UI
CICS Web Services
Access of IBM i Programs as Web Services
End-to-End Processing
     EGL Projects and Deployment
     Example of End-to-End Processing
EGL Deployment Descriptor
     Service Client Bindings
     Web Service Deployment
How Do You Set the Location Data for Service Access?
     Access of SOAP Services
     Access of EGL REST Services
     Access of Third-Party REST Services
What is the Location for an EGL-Generated Service?

PART III: PROGRAMMING WITH EGL
Chapter 8: Overview of Generation
EGL Compilation
EGL Build
EGL Generation

Chapter 9: Language Organization
Data Types
     Categories of EGL Data Types
     Data Item
     Record Part
     Dictionary Part
     Data Table
Logic Parts
     Categories of EGL Logic Parts
     Program Within a Run Unit
     Library
     Service
     Handler
Prototype Parts
     Categories of EGL Prototype Parts
     Interface Part
     ExternalType Part
     Delegate Part
User Interface Parts
     Form Part
     FormGroup Part
Annotations
Stereotypes
Set-Value Blocks
Packages
Use Statement

Chapter 10: Runtime Values
Constants
Variables
     Using the New Operator
     Using a Set-Value Block with a Reference Variable
Arrays
     Array Literals
     Dynamic Arrays
     Structure-Field Arrays
Assigning One Variable to Another
     Value Variable to a Value Variable
     Value Variable to a Reference Variable
     Reference Variable to a Reference Variable
     Reference Variable to a Value Variable
     Assigning a Record that Includes a Reference Field
     Adding a Record to an Array of Records
Expressions
     Name Resolution in Expressions
     Assignment and Reference Compatibility
Static and Dynamic Access

Chapter 11: EGL System Resources
EGL Statements
     Code Documentation
     Data Assignment
     Conditional Processing
     Loop Control
     Transfer of Control Within a Program
     Transfer of Control Out of a Program
System Libraries
Exception Handling
     Propagation
     Exception Fields

Chapter 12: Files and Relational Databases
Logical Unit of Work
Data-Access Statements
File Access
File Names and Resource Associations
     Resource Associations Part
     ResourceAssociation Field
     Escape Character
Support for Relational Databases
     Insertion and Retrieval
     Implicit and Explicit SQL Statements
     Open and ForEach
     Dynamic Arrays of SQL Records
Exception Handling

Chapter 13: Reporting
Support for BIRT Reports
     Initial Access of the BIRT Report Engine
     BIRT Handler
Support for EGL Text Reporting

Chapter 14: JavaServer Faces
Introduction to JSF
EGL JSF and EGL Rich UI
EGL JSF Handler
Development Example
     Generation Outputs
     Binding a Web-Page Field to a Variable or Function
EGL JSF in Context
     Frameworks
     View
     JSF Life Cycle

Appendix A: Sources of Information
EGL and Rich UI
MC Press
Eclipse and BIRT
JavaServer Faces

Appendix B: EGL Rich UI Widgets
Styles
Widget Types by Category
Container Widgets
     Common Fields
     Box
     Div
     FloatLeft
     FloatRight
     Grouping
Information Widgets
     Grid
     HTML
     Image
     Shadow
     Span
     TextLabel
     Tree
Interactive Widgets
     BidiTextArea
     BidiTextField
     Button
     CheckBox
     Combo
     Hyperlink
     List
     ListMulti
     Menu
     PasswordTextField
     RadioGroup
     TextArea
     TextField
Hover Widgets
     GridTooltip
     Tooltip
     TreeTooltip
Fields Available in Most Widgets

Endnotes
Related titles
Developing Web 2.0 Applications with EGL for IBM iDeveloping Web 2.0 Applications with EGL for IBM i
SOA for the Business DeveloperSOA for the Business Developer
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