Class: ArrowFormat::Org::Apache::Arrow::Flatbuf::Union

Inherits:
FlatBuffers::Table
  • Object
show all
Defined in:
lib/arrow-format/org/apache/arrow/flatbuf/union.rb

Overview

A union is a complex type with children in Field By default ids in the type vector refer to the offsets in the children optionally typeIds provides an indirection between the child offset and the type id for each child ‘typeIds` is the id used in the type vector

Constant Summary collapse

FIELDS = 
{
  mode: ::FlatBuffers::Field.new(:mode, 0, 4, :short, 0),
  type_ids: ::FlatBuffers::Field.new(:type_ids, 1, 6, [:int], 0),
}
Data = 
define_data_class

Instance Method Summary collapse

Instance Method Details

#mode ⇒ Object 



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# File 'lib/arrow-format/org/apache/arrow/flatbuf/union.rb', line 27

def mode
  field_offset = @view.unpack_virtual_offset(4)
  if field_offset.zero?
    enum_value = 0
  else
    enum_value = @view.unpack_short(field_offset)
  end
  ::ArrowFormat::Org::Apache::Arrow::Flatbuf::UnionMode.try_convert(enum_value) || enum_value
end

#type_ids ⇒ Object 



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# File 'lib/arrow-format/org/apache/arrow/flatbuf/union.rb', line 37

def type_ids
  field_offset = @view.unpack_virtual_offset(6)
  return nil if field_offset.zero?

  element_size = 4
  @view.unpack_vector(field_offset, element_size) do |element_offset|
    @view.unpack_int(element_offset)
  end
end