Class: ArrowFormat::Schema

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(fields, metadata: nil, message_metadata: nil) ⇒ Schema

Returns a new instance of Schema.



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# File 'lib/arrow-format/schema.rb', line 22

def initialize(fields, metadata: nil, message_metadata: nil)
  @fields = fields
  @metadata = metadata
  @message_metadata = message_metadata
end

Instance Attribute Details

#fields ⇒ Object (readonly)

Returns the value of attribute fields.



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# File 'lib/arrow-format/schema.rb', line 19

def fields
  @fields
end

#message_metadata ⇒ Object (readonly)

Returns the value of attribute message_metadata.



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# File 'lib/arrow-format/schema.rb', line 21

def message_metadata
  @message_metadata
end

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



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# File 'lib/arrow-format/schema.rb', line 20

def metadata
  @metadata
end

Instance Method Details

#to_flatbuffers ⇒ Object 



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# File 'lib/arrow-format/schema.rb', line 28

def to_flatbuffers
  fb_schema = FB::Schema::Data.new
  fb_schema.endianness = FB::Endianness::LITTLE
  fb_schema.fields = fields.collect(&:to_flatbuffers)
  fb_schema.custom_metadata = FB.build_custom_metadata(@metadata)
  # fb_schema.features = @features
  fb_schema
end