An R6 class for managing persistent file-based queues (abstract base class)
Abstract class from which all other classes in rotor inherit their basic fields and methods.
dira character scalar. path of the directory in which to store
the cache files
new()
DirectoryQueue$new(...)
push()
DirectoryQueue$push(x, ...)
prune()
DirectoryQueue$prune(x, ...)
set_dir()
DirectoryQueue$set_dir(x, create = TRUE)
Other R6 Classes:
BackupQueueDateTime,
BackupQueueDate,
BackupQueueIndex,
BackupQueue,
Cache
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