1. interface
  2. Symfony
  3. \
  4. Component
  5. \
  6. Config
  7. \
  8. Resource
  9. \
  10. SelfCheckingResourceInterface

SelfCheckingResourceInterface

interface SelfCheckingResourceInterface implements ResourceInterface

Interface for Resources that can check for freshness autonomously, without special support from external services.

Methods

string
__toString()

Returns a string representation of the Resource.

from ResourceInterface
bool
isFresh(int $timestamp)

Returns true if the resource has not been updated since the given timestamp.

Details

string __toString()

Returns a string representation of the Resource.

This method is necessary to allow for resource de-duplication, for example by means of array_unique(). The string returned need not have a particular meaning, but has to be identical for different ResourceInterface instances referring to the same resource; and it should be unlikely to collide with that of other, unrelated resource instances.

Return Value

string A string representation unique to the underlying Resource

bool isFresh(int $timestamp)

Returns true if the resource has not been updated since the given timestamp.

Parameters

int $timestamp The last time the resource was loaded

Return Value

bool True if the resource has not been updated, false otherwise