{
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  {
   "cell_type": "code",
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   "metadata": {},
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   "source": [
    "import import_ipynb\n",
    "from PInt import *\n",
    "from PReal import *\n",
    "from PBool import *\n",
    "from PString import *\n",
    "from PText import *\n",
    "\n",
    "class Rel_Attrib():\n",
    "    \n",
    "    #identifier: The attribute's identifier\n",
    "    #typeName: The attribute's type as String\n",
    "    #att_type: The attribute's type as Class\n",
    "    #projected: If set to false, the attribute is not visible\n",
    "    \n",
    "    def __init__(self, identifier, typeName):\n",
    "        self.cls_name = {'bool':globals()[\"PBool\"],'int':globals()[\"PInt\"],'float':globals()[\"PReal\"],'String':globals()[\"PString\"],'Text':globals()[\"PText\"]}\n",
    "        self.identifier = identifier\n",
    "        self.typeName = typeName\n",
    "        self.att_type = self.cls_name[typeName].__name__\n",
    "        self.projected = True\n",
    "\n",
    "    def get_Identifier(self):\n",
    "        return self.identifier\n",
    "    \n",
    "    \n",
    "    def getTypeName(self):\n",
    "        return self.typeName\n",
    "       \n",
    "    def getTypeClass(self):\n",
    "        return self.att_type\n",
    "\n",
    "    def get_Projected(self):\n",
    "        return self.projected\n",
    "    \n",
    "\n",
    "    def set_Projected(self, prj):\n",
    "        self.projected = prj\n",
    "\n",
    "\n",
    "    def __eq__(self, obj):\n",
    "        if obj is None:\n",
    "            return False\n",
    "        if not(self.get_Projected() or obj.get_Projected()):\n",
    "            return True\n",
    "        if not (self.identifier == obj.identifier):\n",
    "            return False\n",
    "        return True\n",
    "    \n",
    "    \n",
    "    def __hash__(self):\n",
    "        prm = 31\n",
    "        result = 1\n",
    "        result = prm * result + (0 if self.identifier is None else hash(self.identifier)) \n",
    "        return result\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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