All Questions
Tagged with data-structures design-patterns
50 questions
2
votes
3
answers
951
views
Is breaking encapsulation a necessary compromise for serialization?
I've been considering the way to solve this problem for a while, and I'm currently stuck between two options I both feel are suboptimal. Here's an abstract example of what I'm dealing with:
I have a ...
- 39
3
votes
4
answers
1k
views
Representing vectors as arrays of points vs. as data structures
I'm writing a program in Java where I need to represent the position, scale, and other 3-dimensional properties of objects in a world using vectors.
I can use either of these two approaches:
...
- 643
0
votes
2
answers
685
views
How to create an interface in C that can work on two identical structs with differently named fields
Question Background
Consider a scenario in which I have two structs. Both consist of three fields for doubles. The only difference is the names used to refer to these fields. The first struct is for ...
- 111
1
vote
0
answers
484
views
Design MySQL database to store user workout data for Workout App
I am building a fitness app and I'm trying to figure out the optimal way to store the data is a MySQL database.
I would like to have specific programs (for example, 'get jacked'), I would like a users ...
- 121
0
votes
0
answers
43
views
Query for each doucment or include IDs in document itself and query for all documents with ID?
I am working on a project where there will be different kinds of accounts that use Auth0 for auth and authz. I want to have it so that an account will query my backend to get back documents that ...
- 161
-1
votes
3
answers
293
views
Design pattern for creating and scheduling tests/exams
I have an Exam class that represents an examination/test:
public class Exam
{
public int Id { get; set; }
[Required]
[StringLength(maximumLength: 30, MinimumLength = 1]
public string ...
- 111
0
votes
2
answers
132
views
How can I associate algorithm-specific data to the objects it works with, efficiently yet cleanly?
I'm writing in C++, but this problem applies to most non-high-level languages, and possibly some high-level ones as well.
I have a graph of heterogeneous nodes. The graph can be instantiated by ...
- 293
0
votes
0
answers
71
views
Organizing Complicated Matrix Traversal?
The following are some examples that you may see in an intro to programming course:
Print the elements of an nxn array...
Spiraling in from the outside
Spiraling out from the center
Zig zagging from ...
- 37
1
vote
0
answers
148
views
What is a good design for accumulating temporary data stemming from several processing runs?
I would like to compute cycle times for some manipulator movements. These movements consist of different phases. I have a class that models these phases and this is its constructor to give an idea:
/**...
- 111
0
votes
0
answers
93
views
Is it idiomatic to use protobufs as containers within a service?
I love gRPC, but I find every step of the protobuf process rather frustrating (particularly in Python). Even though they are structurally similar to data structures composed of lists and dicts, you ...
- 143
2
votes
2
answers
70
views
How to model files which contain values that depend on and change with other values?
I want to parse a binary file and track the values and positions of certain properties within it.
Reading them is not that much of a problem, since I know the rules they follow in terms of where they ...
- 149
2
votes
3
answers
294
views
What is the name of this concept/design pattern for blocking another component from running?
Description of Desired Behaviour
I have the following scenario:
Component A can run freely as long as it is not blocked.
Any other component can block the component A from running at any time.
After ...
- 2,818
0
votes
0
answers
81
views
What is the correct way of setting and then differentiating between paid and free user in Firebase / Firestore?
I am developing a mobile application that will have both free and paid versions.
The way I see how I could differentiate between what is a paid and free user is to set a property isPaid on their ...
- 9
3
votes
1
answer
180
views
How to model workflows
I'm building a helpdesk-type system, where there are:
Customer - can submit/resubmit tickets;
Manager - can review submitted tickets, assign to developers (one ticket to multiple developers), review ...
- 161
4
votes
3
answers
385
views
Working with "external" object identifiers
Note: I wrote this question in a way that made it seem I'm mainly concerned with the memory usage and ways to optimise this. Rather, my original intention (and my current intention, upon revisiting ...
- 149