Serialization is the process of converting an object into a stream of bytes in order to persist it to memory, a database, or a file. Its main purpose is to save the state of an object in order to be able to recreate it when needed.
13
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3answers
949 views
Are we queueing and serializing properly?
We process messages through a variety of services (one message will touch probably 9 services before it's done, each doing a specific IO-related function). Right now we have a combination of the ...
12
votes
2answers
7k views
What happens if we serialize and deserialize two objects which references to each other?
To make it more clear, this is a quick example:
class A implements Serializable { public B b; }
class B implements Serializable { public A a; }
A a = new A();
B b = new B();
a.b = b;
b.a = a;
So ...
12
votes
1answer
3k views
Protobuf design patterns
I am evaluating Google Protocol Buffers for a Java based service (but am expecting language agnostic patterns). I have two questions:
The first is a broad general question:
What patterns are we ...
10
votes
6answers
25k views
Java serialization - advantages and disadvantages, use or avoid? [closed]
Serialization is used for persistence in Java. It may be okay to persist a few objects using serialization. But, for a large number of objects, ORM, Database etc might be better. It seems that ...
10
votes
2answers
695 views
Best practices for serialization of DDD aggregates
According to DDD domain logic should not be polluted with technical concerns like serialization, object-relational mapping, etc.
So how do you serialize or map the aggregates' state without publicly ...
9
votes
2answers
11k views
Move from JSON to Protobuf. Is it worth it?
We have REST webservices that can serve XML or JSON (WCF). I'm toying with idea of implementing Protobufs. Why?
PROS
Less load on servers.
Smaller message size - less traffic.
It is easier to ...
8
votes
2answers
6k views
Comparing TCP/IP applications vs HTTP applications [closed]
I'm interested in developing a large-scale user-facing website that is written in Java.
As for design, I'm thinking of developing independent, modular services that can act as data providers to my ...
7
votes
2answers
3k views
Storing and maintaining serialized objects in C#
What are the best practices to store and maintain serialized objects in C#? Any strategies or patterns that apply?
What I have come to believe so far is this:
Prefer Json over XML, both for space ...
5
votes
2answers
240 views
Should serialization and deserialization be the responsibility of the class being serialized?
I'm currently in the (re)design phase of several model classes of a C# .NET application. (Model as in M of MVC). The model classes already have plenty of well-designed data, behaviors, and ...
5
votes
2answers
486 views
Does Serialization preclude the use of Dependency Injection?
Simple question: I understand that Serialization in C# requires default constructors. This would eliminate the possibility of using Constructor injected DI (which is generally the favored style of DI, ...
5
votes
1answer
680 views
Pros and cons of intrusive and non-intrusive serialization?
I am interesting in the pros and cons of serialization: intrusive and non-intrusive.
On the one hand it seems non-intrusive is easy to use - class to be serialized should not be updated. It seems ...
5
votes
2answers
789 views
Development Patterns for dealing with Data Import / Export
I have a ASP.NET web based application that allows the end user to export data to a flat file format. (essentially taking a point-in-time backup of their work)
At a later date they can re-upload ...
4
votes
3answers
594 views
Storing object-graphs with class-evolution in Java with transformation (long time archiving)
Abstract
A common problem is to store objects (with graph), and to load them back. This is easy as long the stored object representation matches the executing code. But as time goes by, requirements ...
4
votes
1answer
277 views
Do serialization functions belong in a model or a controller?
I'm developing an application where:
Models keep data as a multi-dimensional array, which are saved as-is to a MongoDB database. The model is used to provide methods to manipulate the data, and ...
3
votes
2answers
117 views
What's a good way to make sure that locally serialized data can be deserialized in newer code?
Context: I'm working on an HTML 5 game without persisted state. Every time you refresh the page, you start at the beginning. People are requesting that they can start where they left off if they ...
3
votes
1answer
147 views
Where does the term 'serialization' come from?
In order to convert e.g. a python object to json you would use a serializer. As far as I understand it, serialization leaves the possibility to change the converted object back to the original.
...
3
votes
3answers
333 views
Designing access to file-based “database”
It happened frequently that I have to provide access to a bunch of files organized in a directory tree according to some (sometimes loosely specified) rules. My standard pattern is to provide a ...
3
votes
1answer
289 views
What is meant by binary compatibility? What is its importance during serialization/deserialization in a language like Java that deals in byte code?
In computing what is meant by binary compatibility?
I read about it in context of serialization/deserialization that this process of serialize/deserialize should be binary compatible. What does it ...
3
votes
3answers
1k views
Use of Abstract Syntax Notation (ASN.1)
The problem of Electronic Data Interchange over networks is well known and understood. Today, the most common formats for data interchange are things like XML and JSON. There are various pros and ...
3
votes
1answer
104 views
Does a serializable singleton imply both value and reference semantics at the same time?
I was reading Effective Java, and I came across passages that talk about ways you might implement a serializable singleton, as if this was a perfectly normal thing to do in Java. This immediately ...
3
votes
3answers
2k views
Compatibility of Enum Vs. string constants
I was recently told that using Enum:
public enum TaskEndState { Error, Completed, Running }
may have compatibility/serialization issues, and thus sometimes it's better to use const string:
public ...
3
votes
1answer
195 views
Class instance clustering in object reference graph for multi-entries serialization
My question is on the best way to cluster a graph of class instances around specifically marked objects (objects are the graph nodes and the references to each other are the directed edges of the ...
3
votes
3answers
2k views
Serializing an object in different ways
It is usual for me, when doing web development, to copy attributes from my model classes to the other class that will be sent to the client. Usually, with a class that accepts a model and extracts the ...
3
votes
1answer
780 views
How to serialize and deserialize lambda expression in F#?
I serialized lambda expressions in C# before. Now I wanna use F# instead of C# for serialization and deserialization.
I heard F# is better in this area. Is it true?
How can I do that with F#?
I’d ...
3
votes
1answer
2k views
What are your techniques for storing numpy structures in django database fields and how do you serialize them for http? [closed]
I want to publish a small web project that is supposed to contain some of my research results to present it to the scientific community. All my analysis I ran so far have been written in python ...
3
votes
0answers
905 views
How do I resolve $ref in a JSON object?
I have written a single page application that uses rest services to retrieve JSON objects. The JSON objects being returned are C# objects serialized using the Newtonsoft.JSON library. The returned ...
2
votes
6answers
8k views
Serializing Data Structures in C [closed]
I've recently read three separate books on algorithms and data structures, tcp/ip socket programming, and programming with memory. The book about memory briefly discussed the topic of serializing data ...
2
votes
1answer
390 views
Is serialization better done in instance methods or static methods
Say I have a class workStockItem, that I wish to serialize.
Which is the better style?
using a static method
or
using a non-static method (maybe even implemented as a property as seen below)
...
2
votes
1answer
1k views
How does Java handle cyclic data references when serializing an object? [duplicate]
As an assignment question, I am asked to answer the following:
How are cycles handled? Where does the term graph come from?
In the examples given, there does not appear to be any clear trick ...
2
votes
1answer
64 views
Is serialization strategy part of an abi?
According to semver, the major version of a component must be updated when an abi-breaking change is incorporated. Wikipedia does a good job of describing how abi defines the interaction between ...
2
votes
1answer
1k views
xml serialization and deserialization complex situation
I'm considering passing xml back and forth for error messages but each error has different scenarios.
one situation at hand is passing diffed text comparison while others are as simple as passing a ...
2
votes
1answer
260 views
Good serialization solution for communication between Python AND Haskell programs? [closed]
I found this:
http://msgpack.org/
But.. I've never used it, so I don't know what whether it is much good. Anybody has proposals?
Basic requirements:
serialize as many data structures used ...
2
votes
1answer
261 views
Front-End Business Rules / JSON
I am working on a project that now needs business rules. One design discussed is to make API calls (based on the form we are on) which responds with business rules for form input. I am unsure if this ...
2
votes
0answers
69 views
Seperate settings and implementation class hierarchies
We use XML serialization to store class settings. Each setting-class has (but doesn't reference) corresponding implementation-class. Therefore we can easily make a "settings dll" without any ...
2
votes
2answers
1k views
Validating Objects With XSDs: Is Re-Serializing Redundant or Negligible?
Context:
I've got a web service that deals with request / response objects. There are strict, externally-defined schemas constraining both the structure and the content of both requests and ...
2
votes
1answer
211 views
Dependent Object Serialization
What's the recommended way to serialize dependent objects, especially when objects are being freshly constructed (to avoid malicious byte streams, or whatever)? For example....
After creating a ...
1
vote
1answer
130 views
Under what cirumstances would type 'System.Object' qualify for serialization?
I'm in charge of a comprehensive serialization format with support to serialize runtime objects (any derived type of Object). I can't find a sane scenario where one would choose to serialize an ...
1
vote
1answer
423 views
alternate approach of binary serialization/de-serialization
Is it possible to convert a list of object directly to byte[] (and vice versa) to gain performance (by avoiding serialization/de-serialization)?
What I have in mind is that a list is somewhere in ...
1
vote
2answers
256 views
Why is the json format necessary over the normal javascript object format?
Before you answer, yes I know that other languages have no native javascript object support, but neither do they have native support for json.
So wouldn't it make much more sense to modify the json ...
1
vote
2answers
145 views
Class design for JSON serialization
I've been stuck for some time on a circular reference issue with JSON serialization. I have a card game that I'm pickling to a redis store. As I retrieve the Game state from redis I'm trying to ...
1
vote
1answer
246 views
How to migrate an XML serialization framework in Java in a tightly coupled system?
I work for a company that uses XML for storing a bunch of serialized Java classes. The framework we use is Apache Betwixt (abandonded in 2008) and it's kind of pain to maintain and extend (it seemed ...
1
vote
1answer
148 views
What is the idiomatic way to persist the data in this simple data-based application?
I'm looking at developing a simple application in Java for a game which allows a user to keep track of which items they own and how much experience they have obtained while using the item. All of this ...
1
vote
2answers
2k views
Best Practices for serializing/persisting String Object Dictionary entities
I'm noticing a trend towards using a dictionary of string to object (or sometimes string to string), instead of strongly typed objects. For example, the new Katana project makes heavy use of ...
1
vote
3answers
140 views
Using message queue systems - forcing synchronous processing
I have a php process producer-a which places a job on RabbitMQ a - deferring processing to a third-party service. The 3rd party service completes processing a and places a response onto queue b. I ...
1
vote
2answers
419 views
Implementation of a serial communication protocol
I need to implement a serial protocol to communicate with a device using .NET (C#). This implementation should be a library (.dll) to be used in different projects.
I have the datasheet that describe ...
1
vote
0answers
64 views
clone(serialize) v. serialize(clone)
My objects serialize() method is dependent on a call to its clone() method, because of its options to get rid of unwanted data without changing the original instance:
serialize: function(opt_filters) ...
1
vote
0answers
218 views
ISerializable vs WCF attributes
In C# .NET there is two main possibilities to serialize and object.
Implementing the ISerializable interface?
Using the [DataContract/DataMember] serialization attribute of WCF?
What are the ...
1
vote
0answers
182 views
Build filter conditions for entities on client side
I have the requirement that users should be able to specify filter conditions for one kind of entity through a GUI on a thin client. These conditions must be
convenient to generate, meaning the GUI ...
0
votes
2answers
476 views
Recommended Abstraction to transfer data over a nework than byte[] array?
I was curious, why do we prefer byte[] array to transfer data over the network and not anything else? Or if I am missing anything, what are the other ways to transfer the data over a network.
0
votes
1answer
109 views
Java Serialization - Variables Visible in Text Editor
When I serialize my class and save it as a custom file extension, some of the variables and imports are visible when you open the file in a text editor. Is there a way to avoid this or is there an ...
