lib/neo4j/error.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # This file is free software, which comes along with NIT. This software is
   4 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   5 # without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
   6 # PARTICULAR PURPOSE. You can modify it is you want, provided this header
   7 # is kept unaltered, and a notification of the changes is added.
   8 # You are allowed to redistribute it and sell it, alone or is a part of
   9 # another product.
  10
  11 # Errors thrown by the `neo4j` library.
  12 module neo4j::error
  13
  14 import json::static
  15
  16 # An error thrown by the `neo4j` API.
  17 #
  18 #     var error = new NeoError("ErrorMessage", "ErrorName")
  19 #     assert error.to_json == "\{\"error\":\"ErrorName\",\"message\":\"ErrorMessage\"\}"
  20 class NeoError
  21         super Error
  22         super Jsonable
  23
  24         # The name of the error.
  25         #
  26         # Used to programmatically distinguish this kind of error from others.
  27         var name: String
  28
  29         redef fun to_json do
  30                 return "\{\"error\":{name.to_json},\"message\":{message.to_json}\}"
  31         end
  32
  33         redef fun to_s do return "[{name}] {super}"
  34 end