As a rule of thumb all R* commands are aligned with their corrisponding vanilla Redis counterpart.
REXPIRE {key} {ttl_ms}
Set up a realtime auto-expiration timer for key key, ttl_ms milliseconds from now.
- key: The key under which the item to expire is to be found.
- ttl_ms: The number of milliseconds to wait before expiring the given key.
Avarge: O(1) Worst: O(log n)
0 & OK on success, 1 & error otherwise.
REXPIREAT {key} {timestamp_ms}
Set up a realtime auto-expiration timer for key key that will expire when the wall clock will be timestamp_ms in milliseconds.
- key: The key under which the item to expire is to be found.
- timestamp_ms: The timestamp in milliseconds in which to expire the given key.
Avarge: O(1) Worst: O(log n)
0 & OK on success, 1 & error otherwise.
RTTL {key}
Return the time left before key key will be expired, in milliseconds.
- key: The key under which the item to expire is to be found.
O(1)
Long Long representing the remaining time before expiration on success, error otherwise.
RUNEXPIRE {key}
Unset the realtime auto-expiration timer for key key.
- key: The key under which the item to expire is to be found.
O(1)
0 & OK on success, 1 & error otherwise.
RSETEX {key} {value} {ttl_ms}
Set a value for key key and mark for realtime auto-expiration in ttl_ms milliseconds from now.
- key: The key under which the item to expire is to be found.
- value: The value to be inserted to the given key.
- ttl_ms: The number of milliseconds to wait before expiring the given key.
Avarge: O(1) Worst: O(log n)
0 & OK on success, 1 & error otherwise.
REXECEX {command name} {key} {ttl_ms} {commnad params}
Run command with params command params for key key and mark for key for realtime auto-expiration in ttl_ms milliseconds from now.
The following command will be invoked prior to setting the expiration:
<command> <key> <command params>
- command name: The command name to run for
key. - key: The key to set expiration for.
- ttl_ms: The number of milliseconds to wait before expiring the given key.
- command params: The Parameters for the command
command.
Avarge: O(1) + runtime complexity of command
Worst: O(log n) + runtime complexity of command
command response on success, error otherwise.
In case of failiure to set expiration error will be returned even if command was successful.