class TZInfo::DataSources::DataTimezoneInfo

@abstract Data sources return instances of {DataTimezoneInfo} subclasses.
({ConstantOffsetDataTimezoneInfo}).
({TransitionsDataTimezoneInfo}) or a constantly observed offset
The base class for time zones defined as either a series of transitions

def create_timezone

Returns:
  • (DataTimezone) - a new {DataTimezone} instance for the time zone 
def create_timezone
  DataTimezone.new(self)
end

def period_for(timestamp)

Raises:
  • (ArgumentError) - may be raised if `timestamp` is `nil` or does not

Returns:
  • (TimezonePeriod) - the {TimezonePeriod} observed at the time

Parameters:
  • timestamp (Timestamp) -- a {Timestamp} with a specified 
def period_for(timestamp)
  raise_not_implemented('period_for')
end

def periods_for_local(local_timestamp)

Raises:
  • (ArgumentError) - may be raised if `local_timestamp` is `nil`, or

Returns:
  • (Array) - an `Array` containing the

Parameters:
  • local_timestamp (Timestamp) -- a {Timestamp} representing a local 
def periods_for_local(local_timestamp)
  raise_not_implemented('periods_for_local')
end

def raise_not_implemented(method_name)

raise [NotImplementedError] always.

incorrectly being used directly.
Raises a {NotImplementedError} to indicate that the base class is 
def raise_not_implemented(method_name)
  raise NotImplementedError, "Subclasses must override #{method_name}"
end

def transitions_up_to(to_timestamp, from_timestamp = nil)

Raises:
  • (ArgumentError) - may be raised if `from_timestamp` is specified
  • (ArgumentError) - may be raised if `from_timestamp` is specified
  • (ArgumentError) - may be raised if `to_timestamp` is `nil` or does

Returns:
  • (Array) - an `Array` of {TimezoneTransition}

Parameters:
  • from_timestamp (Timestamp) -- an optional {Timestamp} with a
  • to_timestamp (Timestamp) -- a {Timestamp} with a specified 
def transitions_up_to(to_timestamp, from_timestamp = nil)
  raise_not_implemented('transitions_up_to')
end