com.cafesoft.cams.access
Interface AccessControlCheckCache

public interface AccessControlCheckCache

Caches AccessControlCheck instances. Caching of AccessControlChecks may be used to improve Cams system performance or record the state of various requests for analysis.

Since:

12/6/02

Method Summary

AccessControlCheck	add(ResourceRequest resourceRequest, AccessControlResponse response) Adds an AccessControlCheck to the cache.
void	clear() Clears the cache.
AccessControlCheck	get(ResourceRequest resReq) Returns the AccessControlCheck that matches a ResourceRequest.
int	getMaxSize() Returns the maximum size of the cache.
int	getSize() Returns the size of the cache.
void	remove(AccessControlCheck acchk) Removes an AccessControlCheck from the cache.
Iterator	values() Returns all cached AccessControlCheck values.

Method Detail

add

public AccessControlCheck add(ResourceRequest resourceRequest,
                              AccessControlResponse response)
                       throws AccessControlCheckException

Adds an AccessControlCheck to the cache.

Parameters:

resourceRequest - the resource request for which the response will be cached

response - the response to cache

Returns:

a cached AccessControlCheck if its ResourceRequest matches the newly cached AccessControlCheck. If an AccessControlCheck must be removed from the cache to make room for the new one, the removed AccessControlCheck is returned. Otherwise, return null.

AccessControlCheckException

remove

public void remove(AccessControlCheck acchk)

Removes an AccessControlCheck from the cache.

Parameters:

acchk - the AccessControlCheck to be removed.

get

public AccessControlCheck get(ResourceRequest resReq)

Returns the AccessControlCheck that matches a ResourceRequest.

Parameters:

resReq - the ResourceRequest.

Returns:

the cached AccessControlCheck if the ResourceRequest's resource identifer matches (exactly) and one or more actions match. Return null if no matching AccessControlCheck is cached.

values

public Iterator values()

Returns all cached AccessControlCheck values.

Returns:

an Iterator providing access to all cached AccessControlChecks.

getSize

public int getSize()

Returns the size of the cache.

Returns:

the current number of AccessControlCheck instances cached.

getMaxSize

public int getMaxSize()

Returns the maximum size of the cache.

Returns:

the maximum number of AccessControlCheck instances that can be cached. If no hard-coded upper limit, -1 is returned.

clear

public void clear()

Clears the cache.

All cached AccessControlChecks are cleared.