Caching Interfaces

Use

The com.sapportals.portal.prt.component package defines the following interfaces that, if implemented by a component, control the caching of the component's content:

  • ICachablePortalComponent : Determines the caching level and whether the cache has expired.

  • ICacheValidator : Determines whether the cache is still valid based on a string that was stored with the cache.

  • ICacheDiscriminator : Enables the storage of different caches for this component and to label each cache. When called again, the component can specify a label and the cache with that label is returned, if it exists.

Automatic Caching Expiration

Cached content expires automatically in the following cases:

  • A request or a component event is sent to the component.

  • The mode is REFRESH .

  • An exception is raised during the request cycle.