Class: ADBC::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/adbc/connection.rb

Instance Method Summary collapse

Instance Method Details

#info(codes = nil) ⇒ Object 



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# File 'lib/adbc/connection.rb', line 36

def info(codes=nil)
  unless codes.nil?
    codes = codes.collect do |code|
      ADBC::Info.try_convert(code)
    end
  end
  c_abi_array_stream = get_info(codes)
  begin
    reader = Arrow::RecordBatchReader.import(c_abi_array_stream)
    begin
      table = reader.read_all
      values = {}
      table.raw_records.each do |code, value|
        value = value.values[0] if value.is_a?(Hash)
        code = ADBC::Info.try_convert(code)
        values[code.nick.gsub("-", "_").to_sym] = value
      end
      values
    ensure
      reader.unref
    end
  ensure
    GLib.free(c_abi_array_stream)
  end
end

#ingest(table_name, values, mode: :create) ⇒ Object 



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# File 'lib/adbc/connection.rb', line 30

def ingest(table_name, values, mode: :create)
  open_statment do |statement|
    statement.ingest(table_name, values, mode: mode)
  end
end

#open_statement(&block) ⇒ Object 



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# File 'lib/adbc/connection.rb', line 20

def open_statement(&block)
  Statement.open(self, &block)
end

#query(sql, &block) ⇒ Object 



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# File 'lib/adbc/connection.rb', line 24

def query(sql, &block)
  open_statement do |statement|
    statement.query(sql, &block)
  end
end