CacheWarmupEvent 

The PSR-14 event \TYPO3\CMS\Core\Cache\Event\CacheWarmupEvent is fired when caches are to be warmed up.

Example 

API 

final class CacheWarmupEvent
Fully qualified name
\TYPO3\CMS\Core\Cache\Event\CacheWarmupEvent

Event fired when caches are to be warmed up

getGroups()
Returns
array
hasGroup(string $group)
param $group

the group

Returns
bool
getErrors()
Returns
array
addError(string $error)
param $error

the error