Scenarios for the Policy Injection Application Block Handlers

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The Policy Injection Application Block provides a range of built-in matching rules and handlers that enable most common scenarios, especially those that take advantage of the other applications blocks within the Enterprise Library. This section discusses some of the common scenarios for using the built-in handlers and some general scenarios where the ability to integrate custom matching rules and handlers into the Policy Injection Application Block is useful.

This section examines the following common scenarios where the Policy Injection Application Block can simplify and speed up application development:

• Logging Method Invocation and Property Access
• Handling Exceptions in a Structured Manner
• Validating Parameter Values
• Caching Method Results and Property Values
• Authorizing Method and Property Requests
• Measuring Target Method Performance