Gets the cache object for a cache bin.
By default, this returns an instance of the DrupalDatabaseCache class. Classes implementing DrupalCacheInterface can register themselves both as a default implementation and for specific bins.
$bin: The cache bin for which the cache object should be returned.
DrupalCacheInterface The cache object associated with the specified bin.
function _cache_get_object($bin) {
// We do not use drupal_static() here because we do not want to change the
// storage of a cache bin mid-request.
static $cache_objects;
if (!isset($cache_objects[$bin])) {
$class = variable_get('cache_class_' . $bin);
if (!isset($class)) {
$class = variable_get('cache_default_class', 'DrupalDatabaseCache');
}
$cache_objects[$bin] = new $class($bin);
}
return $cache_objects[$bin];
}