Policy Injection Application Block

Retired Content
This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
The latest Enterprise Library information can be found at the Enterprise Library site.

 

Policy Injection Application Block

Enterprise Library

patterns & practices Developer Center

Microsoft Corporation

May 2007

Summary

This page provides an overview of the Enterprise Library Policy Injection Application Block. An application block is reusable and extensible source code-based guidance that simplifies development of common policy injection functionality in .NET Framework applications. Crosscutting concerns are the necessary tasks, features, or processes that are common across different objects—for example, logging, authorization, validation, and instrumentation. Developers can use the Policy Injection Application Block to specify crosscutting behavior of objects in terms of a set of policies. A policy is the combination of a series of handlers that execute when client code calls methods of the class and—with the exception of attribute-based policies—a series of matching rules that select the classes and class members (methods and properties) to which the application block attaches the handlers. Attribute-based policies rely on attributes directly applied to the members of the target class to identify those to which the application block will apply policies. The result is a mechanism for declaratively applying a chain of handlers to members of the target class instance. This chain of handlers is a pipeline.

Downloads	Latest Release: Enterprise Library 3.1 – May 2007 (for .NET Framework 2.0 and 3.0) Enterprise Library 3.0 – April 2007 (for .NET Framework 2.0 and 3.0) Earlier Release: Enterprise Library for .NET Framework 2.0, January 2006 Earlier Release: Enterprise Library for .NET Framework 1.1, June 2005 Patches and extensions for Enterprise Library can be downloaded from theEnterprise Library Community
License	End User Licensing Agreement (EULA)
Community	Enterprise Library Community

Documentation

This section provides links directly to the main topics included in the documentation. This documentation is also included when you install the Enterprise Library.

• Introduction to the Policy Injection Application Block
• Using the Policy Injection Application Block
• Scenarios and Goals
• Developing Applications with the Policy Injection Application Block
• Key Scenarios and Development Tasks
• Design of the Policy Injection Application Block
• Extending and Modifying the Policy Injection Application Block
• Deployment and Operations
• Updating the Policy Injection Application Block
• Policy Injection QuickStart

Retired Content
This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
The latest Enterprise Library information can be found at the Enterprise Library site.