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Class: TZInfo::JulianDayOfYearTransitionRule Private

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, DayOfYearTransitionRule, TransitionRule
Instance Chain:
self, DayOfYearTransitionRule, TransitionRule
Inherits: TZInfo::DayOfYearTransitionRule
Defined in: lib/tzinfo/transition_rule.rb

Overview

Defines transitions that occur on the one-based nth Julian day of the year.

Leap days are not counted. Day 1 is 1 January. Day 60 is always 1 March. Day 365 is always 31 December.

Constant Summary

Class Method Summary

DayOfYearTransitionRule - Inherited

.new

Initializes a new DayOfYearTransitionRule.

TransitionRule - Inherited

.new

Initializes a new TransitionRule.

Instance Attribute Summary

DayOfYearTransitionRule - Inherited

#seconds

TransitionRule - Inherited

#transition_at

Returns the number of seconds after midnight local time on the day identified by the rule at which the transition occurs.

Instance Method Summary

DayOfYearTransitionRule - Inherited

#==

Determines if this DayOfYearTransitionRule is equal to another instance.
#eql?

Alias for DayOfYearTransitionRule#==.
#hash_args

TransitionRule - Inherited

#==

Determines if this TransitionRule is equal to another instance.
#at

Calculates the time of the transition from a given offset on a given year.
#eql?

Alias for TransitionRule#==.
#hash, #hash_args

Instance Attribute Details

#is_always_first_day_of_year? ⇒ Boolean (readonly)

Returns:

  • (Boolean) —

    true if the day specified by this transition is the first in the year (a day number of 1), otherwise false.

[ GitHub ] 

  


# File 'lib/tzinfo/transition_rule.rb', line 209



def is_always_first_day_of_year?
  seconds == 86400
end


  








  

    #is_always_last_day_of_year?  ⇒ Boolean  (readonly)
  



  

    
  





  
Returns:


    
  
  • 
    (Boolean)
—    
    true if the day specified by this transition is the
last in the year (a day number of 365), otherwise false.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 215



def is_always_last_day_of_year?
  seconds == YEAR
end


  







Instance Method Details



  

    #==(r)  ⇒ Boolean 
    Also known as: #eql?
  



  

    
Determines if this JulianDayOfYearTransitionRule is equal to another
instance.


  





  
Parameters:


    
  
  • 
    r
    (Object)
—    
    the instance to test for equality.
    

    
  
    • 



Returns:


    
  
  • 
    (Boolean)
—    
    true if r is a JulianDayOfYearTransitionRule with
the same transition_at and day as this
JulianDayOfYearTransitionRule, otherwise false.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 226



def ==(r)
  super(r) && r.kind_of?(JulianDayOfYearTransitionRule)
end


  








  

    #eql?(r)  
  



  

    
Alias for #==.


  



  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 229



alias eql? ==


  








  

    #get_day(offset, year)  ⇒ Time  (protected)
  



  

    
Returns a Time representing midnight local time on the day specified by
the rule for the given offset and year.


  





  
Parameters:


    
  
  • 
    offset
    (TimezoneOffset)
—    
    the current offset at the time of the
transition.
    

    
  
    • 
  
  • 
    year
    (Integer)
—    
    the year in which the transition occurs.
    

    
  
    • 



Returns:


    
  
  • 
    (Time)
—    
    midnight local time on the day specified by the rule for
the given offset and year.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 241



def get_day(offset, year)
  # Returns 1 March on non-leap years.
  leap = Time.new(year, 2, 29, 0, 0, 0, offset.observed_utc_offset)
  diff = seconds - LEAP
  diff += 86400 if diff >= 0 && leap.mday == 29
  leap + diff
end


  








  

    #hash_args  ⇒ Array  (protected)
  



  

    
  





  
Returns:


    
  
  • 
    (Array)
—    
    an Array of parameters that will influence the output of
hash.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 250



def hash_args
  [JulianDayOfYearTransitionRule] + super
end