Design Goals for the Policy Injection Application Block
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The design goals for the Policy Injection Application Block are the following:
- Allow policies to be dynamically applied to any business object in an application.
- Allow policies to be modified without changing the code.
- Minimize the performance impact of checking for and applying policies at run time.
- Provide extensibility of handlers, matching rules, and the interception mechanism.
- Allow developers to create and reuse key parts of the infrastructure independently. This independence requires the following:
- Handlers to be independent of the proxy and the pipeline mechanism
- Configuration and assignment of handlers to be independent of the proxy