CronTrigger

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class CronTrigger(mask: str, start: datetime | None = None, end: datetime | None = None)

Categories: trigger

Represents a cron-based trigger for scheduling Tabsdata publishers, subscribers and transformers.

This class defines a trigger based on a cron expression, with optional start and end times to constrain its activation period. It validates the cron mask and time boundaries to ensure the trigger is well-formed.

Initializes a CronTrigger instance.

Parameters

parameter

mask

A cron expression string with 5 fields (minute, hour, day of month, month, day of week).

parameter

start

An optional timezone-aware datetime object indicating the earliest time the trigger can fire.

parameter

end

An optional timezone-aware datetime object indicating the latest time the trigger can fire.

Properties

property

endstr | None

Gets the end time of the trigger as a timezone-aware ISO 8601 string with 'Z' timezone.

Returns: The end time in ISO format, or None if not set.

property

maskstr

Gets the cron expression mask.

Returns: The cron expression string.

property

startstr | None

Gets the start time of the trigger as a timezone-aware ISO 8601 string with 'Z' timezone.

Returns: The start time in ISO format, or None if not set.