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0
votes
2answers
158 views

When should you create/destroy underlying object in a class that wraps it

(note: I used Java to make it easer to explain my question, but the actual language is irrelevant for this dilemma) TL; DR: I have a wrapper around some underlying class. At which point should I ...
0
votes
1answer
85 views

Strategy vs Publiser-subscriber pattern

Let's say I have a channel endpoint where I receive messages. Because I want to process messages in a different way depending on its Header property, rather than create a massive switch I create ...
1
vote
3answers
180 views

How to signal that a method chain should not continue?

When doing method chaining, you have methods that return the object allowing you to continue the chain. However, you need to get values out of the object somehow. Usually I've added a method that ...
7
votes
2answers
874 views

Which is a better pattern (coding style) for validating arguments - hurdle (barrier) or fence? [duplicate]

I don't know if there are any accepted names for these patterns (or anti-patterns), but I like to call them what I call them here. Actually, that would be Question 1: What are accepted names for these ...
0
votes
1answer
116 views

SQL Dev and Prod Environments

I have been tasked with setting up a SQL Development environment, and i was wondering if anyone has any advice on getting this right? So far, I have restored the prod DB onto another box, and ...
-1
votes
2answers
169 views

How do developers deal with “where to start” problem in a context of overwhelming difficulties caused by too much heterogeneous information? [closed]

A friend of mine, a beginner PHP programmer, needs to link the product his company develops with a third-party product (a set of web services). He received the "relevant" documentation (a few hundred ...
2
votes
1answer
901 views

Best practice for unused inherited virtual functions (implementing superclass methods)

Let's assume I have a hierarchy of several classes each derived from each other using virtual functions. The base class acts as an interface and defines functions, which may not be required by all of ...
21
votes
6answers
2k views

Should I place functions that are only used in one other function, within that function?

Specifically, I'm writing in JavaScript. Let's say my primary function is Function A. If Function A makes several calls to Function B, but Function B is not used anywhere else, then should I just ...
2
votes
5answers
684 views

I have generally read that having many (>4) arguments to a function/constructor is a bad practice. Is this still considered a bad practice? [closed]

I have generally read that having many (>4) arguments to a function/constructor is a bad practice. Is this still considered a bad practice? And is there a non-obvious reason? In something like a ...
6
votes
1answer
831 views

Which patterns/architecture to apply for “Import Data, Process Data, Export Result”

I was wondering which architecture/patterns to choose for the following problem divided into three steps: Import TestScript Description from File (e.g. .xls, .txt) Process Described TestScript ...
40
votes
11answers
5k views

Are error variables an anti-pattern or good design?

In order to handle several possible errors that shouldn't halt execution, I have an error variable that clients can check and use to throw exceptions. Is this an Anti-Pattern? Is there a better way to ...
0
votes
0answers
186 views

How to cleanly write a multi step process with user feedback and multiple callback

When you have some process that has several steps and you multiple entry points the code gets ugly pretty fast. I encountered this with Facebook integration in my mobile app: User wants to share ...
0
votes
3answers
133 views

One method with many behaviours or many methods

This question is quite general and not related to a specific language, but more to coding best practices. Recently, I've been developing a feature for my app that is requested in many cases with ...
0
votes
1answer
314 views

Using a progress dialog and multi threading

My .NET Windows desktop application creates an HTML report, and has 3 main phases. It may create multiple reports. I show a progress bar so the user knows (estimates) how long it will take (as well ...
0
votes
3answers
1k views

How can I explain this is an anti-pattern? [closed]

I recently started at a new job. The existing system works OK but is poorly designed and hard to maintain, and they are planning to rebuild it in MVC and I fear it will be much worse. (Not because ...
0
votes
0answers
53 views

What should I do with too much interfaces needed for a dialog

Let me start by doing a small summary of the changes we did in our code in the last year. We have a software (VERY big) that is used to visualize multiples underground networks, enter data in the ...
14
votes
4answers
3k views

Is it bad practice to allow user defined fields?

Generally speaking, is it considered bad practice to allow for user created fields in a database for a webapp? For example, I am making a home inventory webapp for my wife, and she is going to want ...
0
votes
3answers
946 views

“Property Container” design-pattern in-depth definition

Could anybody, please, explain what is a Property Container or at least where can I get information about that pattern on the Internet? I've found that it exists as one of the Fundamental patterns in ...
0
votes
5answers
2k views

Is it a good practice to wrap collection in Java? [closed]

I came across a snippet like this, and find it's over engineering. Is it a good practice? public class SchoolList extends ArrayList<School> { } public class School extends ...
4
votes
2answers
962 views

When is it worthwhile to replace working mature code with frameworks+patterns

I fear that frameworks in many cases have become a fashion or trend and are being abused. In many ways people are sacrificing speed just because they want to keep up with every single lib that comes ...
4
votes
1answer
138 views

Dangers when implementing features as plugins [closed]

What kind of problems have you encountered when building plugin interfaces for your application? And how did you resolve them? Background I want to refactor an application so that various features ...
0
votes
2answers
120 views

How does one design his various architecture/business models?

I'm currently learning about various application design approaches and there's one thing I can't really get my head around. Let's say I have a physical device in my network, an IP surveillance ...
22
votes
4answers
30k views

Should angularjs directive directly interact with services or is it considered an anti-pattern?

Which one is considered better: having a directive that interacts with services directly or having a directive that exposes certain hooks to which controller may bind behaviour (involving ...
2
votes
3answers
369 views

What is a good use case for native XML databases? [closed]

What would be a good use case to use a native XML database such as Apache Xindice and eXist-db? I have used XML features of SQL Server in the past and they were of great value, but there it is ...
3
votes
2answers
240 views

How to abstract transition between Views?

Our team is developing an application using WPF with MVVM. We want to make ViewModels reusable. With this intention we want to abstract the transition logic between Views (ViewModels, we use ...
5
votes
4answers
346 views

Is it normal to write all logs into a single file?

Our teamlead said that many files much worse than a single, despite of we are working on a big project. He argued that our customers could more easily send logs to us if there will be just a single ...
-1
votes
1answer
789 views

Are verb-like classes a code smell? [closed]

I do a lot of flat-file processing to extract data. The file "formats" are very unique and each file format requires a lot of format-specific code. Sometimes, the parsing code needs to maintain a lot ...
13
votes
3answers
2k views

How to represent (enum) types in a public API

I am working on a simple API that I want to use for my own client, and to open to the public in the future. I have "Item" objects which can have different "types". The type is a C "typedef enum", for ...
1
vote
1answer
527 views

Javascript heavy page/application - best practice for handling errors

Consider an application that contains a number of pages with a relatively large amount of javascript present, or a predominantly JS powered application. The script handles a number things, such as: ...
8
votes
2answers
751 views

Is implementing an interface defined in a subpackage an anti-pattern?

Let's say I have the following: package me.my.pkg; public interface Something { /* ... couple of methods go here ... */ } and: package me.my; import me.my.pkg.Something; public class SomeClass ...
3
votes
3answers
501 views

Why is quantity in software still written as “1 result(s)”?

Lately, I've been noticing that a lot of software, be it a website, a client application, or a video game, often write a representation of quantity as follows: "1 result(s)". Now, I can understand why ...
1
vote
1answer
271 views

Unit-testing databases: test all possible permutations of read and write to table?

I am testing a resource management class that is interacting with a database or a file system, or a combination of both. I was wandering if it is the norm to test all possible permutations of read and ...
0
votes
1answer
140 views

Datastructure for a factory pattern in practice

I'm implementing what's basically an event log system for a larger system. I used Single-table inheritance to build out the table. The problem I'm having is figuring out how to build out the classes ...
3
votes
1answer
176 views

Naming a sending/receiving module. Does the pattern have a name? [closed]

I'm working on a simple piece of functionality (actually a ruby gem, but that is beside the point) which can be used to receive and persist incoming messages send and persist outgoing messages ...
3
votes
1answer
317 views

What is the pattern called when getters take responsibility for the setting?

I've been heavily using a pattern for years now, but I don't know what it's called. It looks like this.... class xzy { public function getFoo() { if ( undefined(this.foo) ) { ...
1
vote
0answers
176 views

Pattern or solution for using classes with different interface the same way

What I would like to achieve is to use classes (now two, later more) with different interface the same way, so I would like avoid using decisions based on the interface on upper levels for instance, I ...
12
votes
5answers
2k views

How to migrate my thinking from C++ to C#

I am an experienced C++ developer, I know the language in great details and have used some of its specific features intensively. Also, I know principles of OOD and design patterns. I am now learning ...
4
votes
4answers
4k views

Exceptions vs ErrorCodes when working with devices

Out team is at the cusp of a new project. One of the components at the boundary of the system is the component which interacts with a printer through an external COM component (referenced as a usual ...
2
votes
1answer
668 views

Modern practices for stored procedure-based applications

I work in a fairly large and old solution that has many entry points for different kinds of clients, with web sites for public access, web sites for internal access, some web sites and web services ...
17
votes
4answers
4k views

When and for what purposes should the const keyword be used in C for variables?

While getting my code reviewed here the issue of using the const keyword came up. I understand that it is used for implementing read-only behaviour on variables. I am confused about what are the ...
4
votes
2answers
762 views

Is sticking to one language on a particular project a good practice?

I'm developing a pipeline for processing text that will go into production. The question I keep asking myself is: should I stick to one language for the project when I'm looking for a tool to do a ...
3
votes
3answers
3k views

What is the middleware pattern?

Here's a Ruby poject that implements the middleware pattern. From the description, I have no idea what the pattern is, what it's useful for, and why other solutions wouldn't work as well. What is ...
0
votes
1answer
140 views

Architecture for writing add-ins for closed-source software

currently I'm designing an add-in for the modelling tool Enterprise Architect. The general architecture is shown in the picture below. Basically every action where the add-in can react to is ...
8
votes
5answers
2k views

Designing a robust architecture for multiple export types?

I'm looking for patterns or architectural guidance for an upcoming feature I'm designing. Basically, it's an export feature with multiple export targets, and I'm looking to find a way to make it ...
0
votes
1answer
70 views

How to record/store edits?

In many programs and web apps (stack exchange included) the program is able to backtrack what edits where made to the piece. My issue is similar: I want to be able to store a "timeline" of edits, ...
3
votes
1answer
495 views

Reading from a file and inserting into a database, a good practice

I am making an Android application which reads several JSON files and inserts the read information into tables in my database. For instance, there are three files: countries.json { ...
14
votes
4answers
24k views

Is it a good practice to create a ClassCollection of another Class?

Lets says I have a Carclass: public class Car { public string Engine { get; set; } public string Seat { get; set; } public string Tires { get; set; } } Lets say we're making a system ...
1
vote
1answer
806 views

Which practice is the best for database connection? (PHP, etc)

Leave a open database connection throughout the execution of the aplication, or for each time a operation will be executed a new connection will be created? Open throughout the execution: Open ...
7
votes
5answers
5k views

Database connection - should they be passed as parameter?

We have a system whereby the database connection is get once using a common method, and being pass throughout the relevant class to be used. There are doubts that passing the database connection as a ...
2
votes
4answers
1k views

Best practice to sync long paths to filesystems where path length is limited?

I wrote a sync tool to synchronize folders/files from Alfresco to Windows. PROBLEM: In Alfresco, /files/can/have/very/very/very/long/filepaths/like/this.txt The Windows API prevents me from creating ...