Class: ArrowFormat::DecimalArray

Inherits:
FixedSizeBinaryArray show all
Defined in:
lib/arrow-format/array.rb

Direct Known Subclasses

Decimal128Array, Decimal256Array

Instance Attribute Summary

Attributes inherited from Array

#offset, #size, #type, #validity_buffer

Instance Method Summary collapse

Methods inherited from FixedSizeBinaryArray

#each_buffer, #initialize

Methods inherited from Array

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

Constructor Details

This class inherits a constructor from ArrowFormat::FixedSizeBinaryArray

Instance Method Details

#to_a ⇒ Object 



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# File 'lib/arrow-format/array.rb', line 501

def to_a
  return [] if empty?

  byte_width = @type.byte_width
  buffer_types = [:u64] * (byte_width / 8 - 1) + [:s64]
  base_offset = byte_width * @offset
  values = 0.step(@size * byte_width - 1, byte_width).collect do |offset|
    @values_buffer.get_values(buffer_types, base_offset + offset)
  end
  apply_validity(values).collect do |value|
    if value.nil?
      nil
    else
      BigDecimal(format_value(value))
    end
  end
end