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What is Absolute and Sliding expiration
What is Absolute and Sliding expiration?
✍: Guest
Absolute Expiration allows you to specify the duration of the cache, starting from the
time the cache is activated. The following example shows that the cache has a cache
dependency specified, as well as an expiration time of one minute.
Cache.Insert("announcement", announcement, depends, _
DateTime.Now.AddMinutes(1), Nothing)
Sliding Expiration specifies that the cache will expire if a request is not made within a
specified duration. Sliding expiration policy is useful whenever you have a large number
of items that need to be cached, because this policy enables you to keep only the most
frequently accessed items in memory. For example, the following code specifies that the
cache will have a sliding duration of one minute. If a request is made 59 seconds after the
cache is accessed, the validity of the cache would be reset to another minute:
Cache.Insert("announcement", announcement, depends, _
DateTime.MaxValue, _
TimeSpan.FromMinutes(1))
2007-10-23, 5354👍, 0💬
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