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Class: TZInfo::DayOfYearTransitionRule Abstract Private

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
AbsoluteDayOfYearTransitionRule, JulianDayOfYearTransitionRule
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, TransitionRule
Instance Chain:
self, TransitionRule
Inherits: TZInfo::TransitionRule
Defined in: lib/tzinfo/transition_rule.rb

Overview

This class is abstract.

A base class for transition rules that activate based on an integer day of the year.

Class Method Summary

TransitionRule - Inherited

.new

Initializes a new TransitionRule.

Instance Attribute Summary

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

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

Constructor Details

.new(day, transition_at) ⇒ DayOfYearTransitionRule

Initializes a new DayOfYearTransitionRule.

Parameters:

  • day (Integer) —

    the day of the year on which the transition occurs. The precise meaning is defined by subclasses.

  • transition_at (Integer) —

    the time in seconds after midnight local time at which the transition occurs.

Raises:

  • (ArgumentError) —

    if transition_at is not an Integer.

  • (ArgumentError) —

    if day is not an Integer.

[ GitHub ] 

  


# File 'lib/tzinfo/transition_rule.rb', line 82



def initialize(day, transition_at)
  super(transition_at)
  raise ArgumentError, 'Invalid day' unless day.kind_of?(Integer)
  @seconds = day * 86400
end


  







Instance Attribute Details



  

    #seconds  ⇒ Integer  (readonly, protected)
  



  

    
  





  
Returns:


    
  
  • 
    (Integer)
—    
    the day multipled by the number of seconds in a day.
    
  
    • 





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 102



attr_reader :seconds


  







Instance Method Details



  

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



  

    
Determines if this DayOfYearTransitionRule is equal to another instance.

  





  
Parameters:


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



Returns:


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





  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 94



def ==(r)
  super(r) && r.kind_of?(DayOfYearTransitionRule) && @seconds == r.seconds
end


  








  

    #eql?(r)  
  



  

    
Alias for #==.

  



  [ GitHub ]


  

  


# File 'lib/tzinfo/transition_rule.rb', line 97



alias eql? ==


  








  

    #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 105



def hash_args
  [@seconds] + super
end