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Title: COM+
This 3-day course is intended as a practical guide to learning COM+ for use in
building three-tier applications that exploit Microsoft's Windows DNA
architecture, using Windows 2000. Besides providing a practical programming
guide, the course also establishes a firm conceptual foundation for the subject.
Prerequisites
This course assumes that you have a good knowledge of COM programming using
C++
Description
The course provides a thorough introduction to the architecture and basic
services of COM+. It progressively builds a substantial case study, which
illustrates the use of COM+ in creating a three-tier application. The course
opens with an introduction to the COM+ problem domain of enterprise computing
and a discussion of three-tier distributed systems. Then database programming
using ActiveX Data Objects (ADO) is covered, enabling the start of implementing
the case study. The fundamentals of COM+ architecture are outlined, including
context, activation and interception.. Concurrency in COM+ is discussed.
Transactions are studied in detail, including hands-on implementation of
distributed transactions in COM+. The course concludes with a survey of other
important services provided by COM+, including security, queued components,
loosely coupled events and load balancing. Many example programs are provided,
including a substantial case study, The Electronic Commerce Game. There are
several long labs which lead through the implementation of this case study.
Learning Objectives
 | Gain an understanding of the basic architecture of COM+ and an
understanding of the services provided by COM+ |
| Learn how to program three-tier applications using COM+. |
| Learn how to do database programming in C++ using ActiveX Data Objects
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Course Duration: 3 days
Topics
| The COM+ Problem Domain
 | Enterprise Computing Issues |
| One-Tier Systems |
| Client/Server Systems |
| Three-Tier Systems |
| Application Servers |
| MTS and COM+ |
| ActiveX Data Objects |
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| Universal Data Access
| ODBC and OLE DB |
| ADO Object Model |
| Database Programming Using ADO |
| Error Handling in ADO |
| Three-Tier Application Using SQL Server and ADO |
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| COM+ Architecture Fundamentals
| Scalability, Reliability and Complexity |
| Declarative, Attribute-Based Programming |
| Context |
| Activation |
| Interception |
| Just-In Time Activation |
| Object Pooling |
| Object Construction |
| COM+ Catalog |
| Configured Components |
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| Concurrency in COM+
| Concurrency |
| Apartments |
| Threading Models |
| Synchronization Attribute |
| Activities |
| Neutral Apartments |
| Programming Concurrency in COM+ |
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| Transactions in COM+
| Transactions |
| Distributed Transaction Processing |
| OLE Transactions |
| Microsoft Distributed Transaction Coordinator |
| Transaction Attributes in COM+ |
| Automatic Transactions |
| Programming Distributed Transactions Using COM+ |
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| COM+ Services
| Microsoft Message Queue |
| Queued Components |
| Loosely Coupled Events |
| Microsoft Clustering Technology |
| Component Load Balancing |
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| Appendix A. SQL Server Survival Guide
| SQL Server |
| Enterprise Manager |
| Query Analyzer |
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| Appendix B. Electronic Commerce Game Case Study |
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