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Cache Administration

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Cache Administration

The Windows Media Services SDK does not contain interfaces that enable you to administer a cache directly. You must create your own. For example, you can create a class to manage a database and a class to manage each cache entry in the database. Your database class can contain methods to:

  • Create a cache entry.
  • Insert a cache entry into the database.
  • Delete a cache entry from the database.
  • Delete all entries from the database.
  • Find a specific cache entry.
  • Specify and retrieve the maximum disk space that cached content can occupy.
  • Determine whether a disk has enough space to cache digital media.

Your cache entry class can contain methods to:

  • Specify a version number for the content.
  • Retrieve the time at which the version was last checked.
  • Specify the time at which the content was last accessed.
  • Update the size of the content.

Your cache entry class can also inherit from the IWMSCacheItemDescriptor interface to perform the following:

  • Retrieve the URL of the cached content on the cache server.
  • Retrieve the URL of the cached content on the origin server.
  • Retrieve the size, in bytes, of the cached content.
  • Retrieve the version number of the content.
  • Retrieve the content expiration date.

See Also

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