Lifecycle methods
This is the collection of lifecycle methods within the FilePersister interface. There are only three lifecycle methods, destroy, getStatus, and schedule.
destroy
The destroy method should be called when this Persister object is no longer used.
getStatus
The getStatus method lets you find out if the Persister is currently in the process of loading or saving content.
schedule
The schedule method allows you to queue up a series of asynchronous actions that must run in sequence during persistence.