Class: Meibo::DataSet

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/meibo/data_set.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, roster:) ⇒ DataSet

Returns a new instance of DataSet.



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# File 'lib/meibo/data_set.rb', line 9

def initialize(data, roster:)
  @data = data
  @roster = roster
  @cache = {}
end

Instance Attribute Details

#roster ⇒ Object (readonly)

Returns the value of attribute roster.



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# File 'lib/meibo/data_set.rb', line 7

def roster
  @roster
end

Instance Method Details

#<<(new_data) ⇒ Object

Raises:



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# File 'lib/meibo/data_set.rb', line 15

def <<(new_data)
  raise DataNotFoundError, "sourcedIdがありません" unless new_data.sourced_id
  raise SourcedIdDuplicatedError, "sourcedIdが重複しています" if data_by_sourced_id.key?(new_data.sourced_id)

  @data << new_data
  @cache.clear
end

#check_semantically_consistent ⇒ Object

Raises:



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# File 'lib/meibo/data_set.rb', line 23

def check_semantically_consistent
  raise SourcedIdDuplicatedError, "sourcedIdが重複しています" unless @data.size == data_by_sourced_id.size
  raise DataNotFoundError, "sourcedIdがありません" unless data_by_sourced_id[nil].nil?
end

#each ⇒ Object 



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# File 'lib/meibo/data_set.rb', line 28

def each(...)
  @data.each(...)
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/meibo/data_set.rb', line 32

def empty?
  @data.empty?
end

#find(sourced_id) ⇒ Object 



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# File 'lib/meibo/data_set.rb', line 36

def find(sourced_id)
  data_by_sourced_id.fetch(sourced_id)
rescue KeyError
  raise DataNotFoundError, "sourcedId: #{sourced_id} が見つかりません"
end

#lineno(datum) ⇒ Object 



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# File 'lib/meibo/data_set.rb', line 42

def lineno(datum)
  # NOTE: add one for one-based, and add one for header line
  find_index(datum)&.+(2)
end

#where(**conditions) ⇒ Object 



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# File 'lib/meibo/data_set.rb', line 47

def where(**conditions)
  group_cache[conditions.keys.sort][conditions.values] || empty_set
end