I want to use the FilesystemCache type to store an object that gets created by parsing a large chunk of YAML. If the YAML modifcation time is greater than the cache file creation time, then I refresh the cache. However, I cannot seem to find any method that will let me actually get this information (the time that the cache file was created).
I could just use the getFilename() method of the FileCache class then use PHP functions to get the creation time, but the method is marked as protected. Is that just to keep it inline with only the methods defined on the interface? It would be nice to be able to somehow get this information.