CronTab returns true if the string is a cron tab expression.

Name returns an error if the name value is not valid.

NotEmpty checks if the value is not empty.

SQLIdentifier returns an error if the string value can't be used as a SQL identifier.

SQLNameOrUUID returns an error if the given value can not be a name or UUID.

URL returns an error if the URL value is not valid.

UUID returns an error if the UUID value is not valid.

UUIDs returns an error if one of the UUID values is not valid.

MaxNameLength is the maximal length of a name.

MaxSQLIdentifierLength is the max length of a sql name that we can support.

MinNameLength is the minimal length of a name.

JobCronFormat is the default allowed CRON formatting options, allowing granularity down to the minute and the shorthand descriptions like @hourly.