Class: XapianDb::TypeCodec::NumberCodec

Inherits:

Object

• Object
• XapianDb::TypeCodec::NumberCodec

Defined in:

lib/type_codec.rb

Class Method Summary

• .decode(encoded_number) ⇒ BigDecimal

  Decode a string to a BigDecimal.

• .encode(number) ⇒ String

  Encode a number to a sortable string.

Class Method Details

.decode(encoded_number) ⇒ BigDecimal

Decode a string to a BigDecimal

Parameters:

• number_as_string (String) —

  a string representing a number

Returns:

• (BigDecimal) —

  the decoded number

# File 'lib/type_codec.rb', line 161

def self.decode(encoded_number)
  begin
    BigDecimal(Xapian::sortable_unserialise(encoded_number).to_s)
  rescue TypeError
    raise ArgumentError.new "#{encoded_number} cannot be unserialized"
  end
end

.encode(number) ⇒ String

Encode a number to a sortable string

Parameters:

• number (Integer, BigDecimal, Bignum, Float) —

  a number object to encode

Returns:

• (String) —

  the encoded number

# File 'lib/type_codec.rb', line 147

def self.encode(number)
  case number.class.name
    when "Fixnum", "Float", "Bignum", "Integer"
      Xapian::sortable_serialise number
    when "BigDecimal"
      Xapian::sortable_serialise number.to_f
    else
      raise ArgumentError.new "#{number} was expected to be a number"
  end
end