Tradeoffs of distributed transactions
by Mike Liu
WCF 4.5 Multi-Layer Services Development with Entity Framework
- WCF 4.5 Multi-Layer Services Development with Entity Framework
- Table of Contents
- WCF 4.5 Multi-Layer Services Development with Entity Framework
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Web Services and Windows Communication Foundation
- 2. Implementing a Basic HelloWorld WCF Service
- 3. Hosting and Debugging the HelloWorld WCF Service
- Hosting the HelloWorld WCF service
- Hosting the service in ASP.NET Development Server
- Hosting the service in a managed application
- Hosting the service in a Windows service
- Hosting the service in the Internet Information Services server using the HTTP protocol
- Hosting the service in the Internet Information Services server using the TCP protocol
- Other WCF service hosting options
- Debugging the HelloWorld WCF service
- Summary
- Hosting the HelloWorld WCF service
- 4. Implementing a WCF Service in the Real World
- 5. Adding Database Support and Exception Handling
- 6. LINQ: Language Integrated Query
- What is LINQ?
- Creating the test solution and project
- Datatype var
- Automatic properties
- Object initializer
- Collection initializer
- Anonymous types
- Extension methods
- Lambda expressions
- Built-in LINQ extension methods and method syntax
- LINQ query syntax and query expression
- Built-in LINQ operators
- Summary
- 7. LINQ to Entities: Basic Concepts and Features
- ORM: Object-Relational Mapping
- Entity Framework
- LINQ to Entities
- Comparing LINQ to Entities with LINQ to Objects
- Comparing LINQ to SQL with LINQ to Entities
- Creating a LINQ to Entities test application
- Creating the data model
- Querying and updating a database table
- Viewing generated SQL statements
- Deferred execution
- Deferred (lazy) loading versus eager loading
- Joining two tables
- Querying a view
- Summary
- 8. LINQ to Entities: Advanced Concepts and Features
- 9. Applying LINQ to Entities to a WCF Service
- Creating the LINQNorthwind solution
- Modeling the Northwind database
- Creating the business domain object project
- Using LINQ to Entities in the data access layer
- Creating the business logic layer
- Creating the service interface layer
- Testing the service with the WCF Test Client
- Testing concurrency with our own client
- Summary
- 10. Distributed Transaction Support of WCF
- Creating the DistNorthwind solution
- Hosting the WCF service in IIS
- Testing the transaction behavior of the WCF service
- Enabling distributed transaction support
- Understanding the distributed transaction support of a WCF service
- Testing the distributed transaction support of the WCF service
- Tradeoffs of distributed transactions
- Summary
- 11. WCF Security
- 12. Extending WCF Services
- Index
Now you have learned how to turn on distributed transaction support for a WCF service. Before you dive into the distributed transaction world in your real work environment, you need to be aware that distributed transaction support will impact your applications in a few areas, sometimes maybe significantly.
The following is a list of some of the impacts for distributed transactions:
- Distributed transactions may introduce more complexity to your applications
- Distributed transactions may decrease the performance of your applications
- Distributed transactions may increase the deadlock probability of your processes
You should analyze your requirements, consider all pros and cons of turning the distributed transaction support on, and then make your own judgment for your applications.
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