Category "serialization"

Can I serialize a class by casting it to a char*

In C++, can I cast a class or some data to a void*, then to a char* to serialize it? If so, how would I de-serialize? I don't really care about portability. cla

access objects in pyspark user-defined function from outer scope, avoid PicklingError: Could not serialize object

How do I avoid initializing a class within a pyspark user-defined function? Here is an example. Creating a spark session and DataFrame representing four latitu

Serialising order annotations for XML on Jackson does not work

I already googled this problem for almost a day and tried several fixes (including 4 or 5 from StackOverflow) but none of them worked. I have this POJO with ann

How do I serialize non-ascii characters in pykafka?

I have a defauldict I want to serialize as json. But some characters then replaced with unicode escaped charasters. For example, if I have string "International

Save multiple objects serializers only if both of them are valid

I have multiple serializers objects that comes from the request as json file. I want to store them inside databases only if they are Valid (all of them must be

Django. How to save serialized and validated data?

I have a Car model with name, model and serial number fields. In which the combination of the name and model fields must be unique. I am using serializers.Model

Pydantic enum field does not get converted to string

I am trying to restrict one field in a class to an enum. However, when I try to get a dictionary out of class, it doesn't get converted to string. Instead it re

MessagePack subtype serialization

Serialization/deserialization turns a collection of a base type with child-type items in it into a collection with base type items only. Is there a way to set u

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'id_utilisateur_id' cannot be null

I am a computer science student. And I have a problem while creating an API. Here is my controller allowing the addition of a "Personnage". (POST) #[Route('/api

Multiple objects serialization

I am making a ToDoList-Console app that needs serialisation of multiple objects. There are 2 task classes: Simple task Complex task I need a method that seriali

Jackson deserializer for generic type

I need to write a custom deserializer for a class with generics. I couldn't find a way to do this, however I cannot imagine I'm the only one with this problem.

Object of type <> is not JSON serializable Django REST Framework

I am trying to create a search function inside my class-based view using Django Rest Framework, but it does not seems to work. when I try to search for some cus

How to deserialize interfaces with Newtonsoft Json.Net

I have this class hierarchy : public class ProxyBotsSnapshotLogEntryDetails : IBotsSnapshotLogEntryDetails { public ICollection<IBotSnapshot> Snapsho

Fastest way to dump nested dict to the hard drive

I have a big (several Gigs) nested dictionary of this structure: { string1: {string1_1: int1_1, string1_2: int1_2, ...}, string2: {string2_1: int2_1, strin

Unable to load class exception during Kryo deserialization

I am using Kryo for serialization / deserialization and not registering classes beforehand (I am working on that). That said, upon deserialization, I am gettin

How to efficiently serialize python dict with known schema to binary?

I have a lot of python dicts with known schema. For example, the schema is defined as Pyspark StructType like this: from pyspark.sql.types import * dict_schema

How to add data to ManyToMany field using Django Rest Framework?

I'm relatively new to DJango and I am looking to add data to a many-to-many field using serializers from rest framework. My Model: class IngFamily(models.Mode

Need Jackson serializer for Double and need to specify precision at runtime

There are many posts about creating Jackson serializers for numbers, currency, etc. For engineering applications, there is often a need to set the precision on

PARCEL ERROR : unable to deserialize cloned data due to invalid or unsupported version

i have my daily problem right now. i run an oracle virtual machine with npm on my terminal, and PARCEL bundler to compile my css. when i try to launch it to get

Java Serialization/De-serialization giving null object references

I'm working on a group project and we've run into a problem with the serialization part of our software. We have the class protocol: import java.io.Seria