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Java Source Code / Java Documentation » Portal » Open Portal » com.sun.portal.container.portlet

Source Cross Reference Class Diagram Java Document (Java Doc)

com.sun.portal.container.portlet .CacheManager

All known Subclasses:   com.sun.portal.container.portlet.impl .CacheManagerImpl,
CacheManager
public interface CacheManager (Code)
The cache manager is responsible for managing the cache contents for the portlets. The operations on the cached portlet contents include adding, retrieving, updating, and removing the cache entries to/from the cache repository.
The portlet specification defines two basic portlet content caching mechanisms: EXPIRATION cache and VALIDATING cache. Regardless of which mechanism gets used, the cache (mechanism) is per portlet entity per user session. The cached data should not be shared across different users of the same portlet entity.
CacheManager is an interface that is used by the portlet container.

Field Summary
final public static String CACHE_MANAGER


Method Summary
public PortletCacheEntry getCachedPortlet(ContainerRequest request)
     Returns the PortletCacheEntry for the portlet of i the specified portlet entity ID encapsulated in the ContainerRequest.
public boolean isCacheExpired(ContainerRequest request)
     Return if the cached entry for the portlet with EXPIRATION cache type already expired.
public void putCachedPortlet(ContainerRequest request, PortletCacheEntry entry)
     Called by the portlet container to add or update the cache entry for the protlet of the specified entity ID encapsulated in the ContainerRequest.
public void removeAllCachedPortlets(ContainerRequest request)
     Called by the portlet container to remove all the cache entries in the user session.
public void removeCachedPortlet(ContainerRequest request)
     Called by the portlet container to remove the cache entry for the protlet of the specified entity ID encapsulated in the ContainerRequest.

Field Detail
CACHE_MANAGER
final public static String CACHE_MANAGER(Code)

Method Detail
getCachedPortlet
public PortletCacheEntry getCachedPortlet(ContainerRequest request)(Code)
Returns the PortletCacheEntry for the portlet of i the specified portlet entity ID encapsulated in the ContainerRequest.
This method returns null in the following two situations:

no cache entry is found for this portlet entity
if the cache type is EXPIRATION and the cached data has already expired

Parameters:
  request - The ContainerRequest object thatencapsulates the portlet entity ID

isCacheExpired
public boolean isCacheExpired(ContainerRequest request) throws IllegalStateException, NoSuchCachedContentException(Code)
Return if the cached entry for the portlet with EXPIRATION cache type already expired.

Parameters:
  request - The ContainerRequest object thatencapsulates the portlet entity ID
true, if the cached entry for the portlet with EXPIRATION cache type has already expired

exception:
  java.lang.IllegalStateException - if the cachetype is not EXPIRATION.
exception:
  com.sun.portal.container.NoSuchCachedContentException - if the cache entry for the portlet entity is not found.

putCachedPortlet
public void putCachedPortlet(ContainerRequest request, PortletCacheEntry entry)(Code)
Called by the portlet container to add or update the cache entry for the protlet of the specified entity ID encapsulated in the ContainerRequest.

Parameters:
  request - The ContainerRequest object thatencapsulates the portlet entity ID
Parameters:
  entry - The PortletCacheEntry object

removeAllCachedPortlets
public void removeAllCachedPortlets(ContainerRequest request)(Code)
Called by the portlet container to remove all the cache entries in the user session.

Parameters:
  request - The ContainerRequest object thatencapsulates the information of the cache repositoryin the user session.

removeCachedPortlet
public void removeCachedPortlet(ContainerRequest request)(Code)
Called by the portlet container to remove the cache entry for the protlet of the specified entity ID encapsulated in the ContainerRequest.

Parameters:
  request - The ContainerRequest object thatencapsulates the portlet entity ID

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