MicroSoft Application blocks
Application blocks help address the common problems that developers face from one project to the next. They are designed to encapsulate the Microsoft recommended best practices for .NET-based applications. In addition, they can be added to .NET-based applications quickly and easily. For example, the Data Access Application Block provides access to the most frequently used features of ADO.NET 4.0 in simple-to-use classes, thus boosting developer productivity. It also addresses scenarios not directly supported by the underlying class libraries.
Different applications have different requirements, and you will not find that every application block is useful in every application that you build. Before using an application block, you should have a good understanding of your application requirements and of the scenarios that the application block is designed to address.
Enterprise Library–January 2006 contains the following general purpose application blocks:
- Caching Application Block. With this application block, developers can incorporate a local cache in their applications.
- Cryptography Application Block. With this application block, developers can incorporate hashing and symmetric encryption in their applications.
- Data Access Application Block. With this application block, developers can incorporate standard database functionality in their applications.
- Exception Handling Application Block. With this application block, developers and policy makers can create a consistent strategy for processing exceptions that occur throughout the architectural layers of enterprise applications.
- Logging Application Block. With this application block, developers can include standard logging functionality in their applications.
- Security Application Block. With this application block, developers can incorporate authorization and security caching functionality in their applications.
Enterprise Library also includes a set of core functions, including configuration, instrumentation, and object builder services. These functions are used by all other application blocks.
fig.Interdependence of application blocks
All the application blocks are designed to have a limited number of dependencies so that they can be used individually as well as with other application blocks. All application blocks depend on the Enterprise Library Core, which is a logical grouping made up of the following subsystems:
- The Common assembly, including instrumentation.
- Configuration helper classes, design-time components, and the Enterprise Library Configuration Console.
- The ObjectBuilder subsystem.
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This page provides an overview of Enterprise Library for .NET Framework 4.0. The patterns & practices Enterprise Library is a library of application blocks designed to assist developers with common enterprise development challenges.
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