Class: RiCal::PropertyValue::RecurrenceRule::OccurrenceIncrementer::FrequencyIncrementer

Inherits:
RiCal::PropertyValue::RecurrenceRule::OccurrenceIncrementer show all
Defined in:
lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb

Overview

A FrequenceIncrementer represents the xxxLY and FREQ parts of a recurrence rule A FrequenceIncrementer has a single occurrence within each cycle.

Instance Attribute Summary collapse

Attributes inherited from RiCal::PropertyValue::RecurrenceRule::OccurrenceIncrementer

#contains_daily_incrementer, #contains_weeknum_incrementer, #current_occurrence, #leaf_iterator, #outer_incrementers, #outer_range

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from RiCal::PropertyValue::RecurrenceRule::OccurrenceIncrementer

#add_outer_incrementer, #contains_daily_incrementer?, #contains_weeknum_incrementer?, #daily_incrementer?, #first_sub_occurrence, from_rrule, #in_outer_cycle?, #next_time, #outermost?, #short_name, #to_s, #update_cycle_range, #weeknum_incrementer?

Methods included from TimeManipulation

#advance_day, #advance_month, #advance_week, #advance_year, #first_day_of_month, #first_day_of_week, #first_day_of_year, #first_hour_of_day

Constructor Details

#initialize(rrule, sub_cycle_incrementer) ⇒ FrequencyIncrementer

Returns a new instance of FrequencyIncrementer.



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 15

def initialize(rrule, sub_cycle_incrementer)
  super(rrule, sub_cycle_incrementer)
  self.interval = rrule.interval
end

Instance Attribute Details

#interval ⇒ Object

:nodoc:



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 11

def interval
  @interval
end

#outer_occurrence ⇒ Object

:nodoc:



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 11

def outer_occurrence
  @outer_occurrence
end

#skip_increment ⇒ Object

:nodoc:



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 11

def skip_increment
  @skip_increment
end

Class Method Details

.conditional_incrementer(rrule, freq_str, sub_cycle_class) ⇒ Object 



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 20

def self.conditional_incrementer(rrule, freq_str, sub_cycle_class)
  sub_cycle_incrementer = sub_cycle_class.for_rrule(rrule)
  if rrule.freq == freq_str
    new(rrule, sub_cycle_incrementer)
  else
    sub_cycle_incrementer
  end
end

Instance Method Details

#first_within_outer_cycle(previous_occurrence, outer_cycle_range) ⇒ Object 



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 45

def first_within_outer_cycle(previous_occurrence, outer_cycle_range)
  if outer_range
    first_occurrence = outer_cycle_range.first
  else
    first_occurrence = step(previous_occurrence)
  end
  self.outer_range = outer_cycle_range
  sub_cycle_incrementer.first_within_outer_cycle(previous_occurrence, update_cycle_range(first_occurrence))
end

#multiplier ⇒ Object 



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 29

def multiplier
  1
end

#next_cycle(previous_occurrence) ⇒ Object

Advance to the next occurrence, if the result is within the current cycles of all outer incrementers



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 56

def next_cycle(previous_occurrence)
  @sub_cycle_dtstart = previous_occurrence
  if current_occurrence
    candidate = sub_cycle_incrementer.cycle_adjust(step(current_occurrence))
  else
    candidate = step(previous_occurrence)
  end
  if outermost?
    sub_occurrence = sub_cycle_incrementer.first_within_outer_cycle(previous_occurrence, update_cycle_range(candidate))
    until sub_occurrence
      candidate = sub_cycle_incrementer.cycle_adjust(step(candidate))
      sub_occurrence = sub_cycle_incrementer.first_within_outer_cycle(previous_occurrence, update_cycle_range(candidate))
    end
    sub_occurrence
  elsif in_outer_cycle?(candidate)
    sub_cycle_incrementer.first_within_outer_cycle(previous_occurrence, update_cycle_range(candidate))
  else
    nil
  end
end

#step(occurrence) ⇒ Object 



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 33

def step(occurrence)
  occurrence.advance(advance_what => (interval * multiplier))
end

#sub_cycle_incrementer ⇒ Object 



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# File 'lib/ri_cal/property_value/recurrence_rule/occurrence_incrementer/frequency_incrementer.rb', line 37

def sub_cycle_incrementer
  if @sub_cycle_incrementer.unneeded?(current_occurrence || @previous_occurrence)
    NullSubCycleIncrementer
  else
    super
  end
end