Class: ArrowFormat::StructArray

Inherits:
Array
  • Object
show all
Defined in:
lib/arrow-format/array.rb

Instance Attribute Summary collapse

Attributes inherited from Array

#offset, #size, #type, #validity_buffer

Instance Method Summary collapse

Methods inherited from Array

#empty?, #n_nulls, #null?, #slice, #valid?

Constructor Details

#initialize(type, size, validity_buffer, children) ⇒ StructArray

Returns a new instance of StructArray.



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# File 'lib/arrow-format/array.rb', line 643

def initialize(type, size, validity_buffer, children)
  super(type, size, validity_buffer)
  @children = children
end

Instance Attribute Details

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/arrow-format/array.rb', line 642

def children
  @children
end

Instance Method Details

#each_buffer {|slice_bitmap_buffer(:validity, @validity_buffer)| ... } ⇒ Object

Yields:



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# File 'lib/arrow-format/array.rb', line 648

def each_buffer(&block)
  return to_enum(__method__) unless block_given?

  yield(slice_bitmap_buffer(:validity, @validity_buffer))
end

#to_a ⇒ Object 



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# File 'lib/arrow-format/array.rb', line 654

def to_a
  return [] if empty?

  if @children.empty?
    values = [[]] * @size
  else
    children_values = @children.collect(&:to_a)
    values = children_values[0].zip(*children_values[1..-1])
  end
  apply_validity(values)
end