class SelfCheckingResourceChecker implements ResourceCheckerInterface

Resource checker for instances of SelfCheckingResourceInterface.

As these resources perform the actual check themselves, we can provide this class as a standard way of validating them.

Methods

bool
supports(ResourceInterface $metadata)

Queries the ResourceChecker whether it can validate a given resource or not.

bool
isFresh(ResourceInterface $resource, int $timestamp)

Validates the resource.

Details

at line 26
bool supports(ResourceInterface $metadata)

Queries the ResourceChecker whether it can validate a given resource or not.

Parameters

ResourceInterface $metadata The resource to be checked for freshness

Return Value

bool True if the ResourceChecker can handle this resource type, false if not

at line 31
bool isFresh(ResourceInterface $resource, int $timestamp)

Validates the resource.

Parameters

ResourceInterface $resource The resource to be validated
int $timestamp The timestamp at which the cache associated with this resource was created

Return Value

bool True if the resource has not changed since the given timestamp, false otherwise