Member variable CxpAbstractPage():CachePolicy Foundation
Determines the cache policy of the page.
The cache policy determines the policy based on which the <CXP/> infrastructure caches page execution. Configuration is done by specifying the cache policy in the global.config or page-specific .config file. The <CXP/> infrastructures comes with a set of pre-defined page cache policies as shown below:
| ClassName | Description | Parameter |
|---|---|---|
| CxpCachetimeoutByRequest | Timeframe is determined by page request count | Requests |
| CxpCacheTimeoutByInterval | Timeframe is determined by seconds elapsed | Interval |
| CxpCacheTimeoutByFileChanged | Timeframe ends with next file change |
If no cache policy is specified for the page, the :CachePolicy member variable contains the value NIL. Otherwise, :CachePolicy contains a reference to an instance of a class derived from ICxpPageCachePolicy.
The usage of different caching policies and the proper configuration is shown below:
<!-- Page gets re-rendered every 3 requests
<cachepolicy
provider="CxpCacheTimeoutByRequests"
Requests ="3"
/>
<!-- Page gets re-rendered every 3 seconds -->
<cachepolicy
provider="CxpCacheTimeoutByInterval"
Interval ="3"
/>
<!-- Page gets re-rendered only if one of the files listed is changed -->
<cachepolicy
provider="CxpCacheTimeoutByFileChanged"
file ="c:\newsletter.txt"
file ="c:\test.txt"
/>
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