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I have a class diagram that is like this:
< Order > (1) CAN HAVE (M) < products >
But therefore Order has the following:
Order_Id
Customer_Id
Order_date_day
Order_date_month
Order_date_yeah
But I do not know how it would handle the Products? Because, I couldn't have ProductID because that would mean that each item in... |
One of the new requirement of our dev team set by the CTO/CIO is to become test driven development, however I don't think the rest of the business is going to help because they have no sense of development life cycles, and requirements get changed all the time within a single sprint. Which gets me frustrated about wast... |
I have been working with Indy 10 HTTP Servers / Clients lately in Delphi XE2, and I need to make sure I'm understanding session management correctly. In the server, I have a "bucket" of sessions, which is a list of objects which each represent a unique session. I don't use username and password to authenticate users, b... |
I have over the last 30 days been developing a Python application that utilizes a MySQL database of information (specifically about Norwegian addresses) to perform address validation and correction. The database contains approximately 2.1 million rows (43 columns) of data and occupies 640MB of disk space.
I'm thinking ... |
I have come across many relational database management systems (RDBMS). But recently I used hibernate which made me start wondering why Object Oriented databases aren't more popular.
If object oriented languages like Java or C# are so popular, then why aren't object-oriented database management systems (OODBMS) more p... |
Sorry if this is a duplicate, I looked.
We're moving to Git. In Subversion, I'm used to having \trunk, \branches and \tags folders.
With Git, switching between branches will replace the contents of the working directory, so am I right to assume that the way we used to work just doesn't apply with Git?
My guess is that ... |
I have a private final field in one class and then I want to address that field in a subclass. I want to change field access/visibility modifier from private to protected, so I don't have to call getField() method from subclass and I can instead address that field directly (which is more clear and cohessive). Will ther... |
It might be obvious, but I am not sure.
Should the analyst who interview the client, gather and analyse requirements then give an estimate, also specifies how many and with how much experience developers should be required to develop it?
Maybe I'am not so sure on how I go about this allocation thing, maybe this is just... |
We have IAppContext which is injected into ViewModel.
This service contains shared data: global filters and other application wide properties.
But there are cases when data is very specific. For example one VM implements Master and the second one - Details of selected tree item. Thus DetailsVm must know about the selec... |
This all is with respect to Microsoft project CodeBook:
CodeBook
There is huge amount of code in the repository, many classes , a call hierarchy of functions, testcases etc. I am interested in knowing how this crawling process takes place, and how this data is sorted?
|
I'm working on setting up Jenkins to handle our release builds. A release build consists of a Windows installer that includes some binaries that must be built on Linux.
Here's what I have so far:
The Windows portion and Linux portion are set up as separate Jenkins projects.
The Windows project is parameterized, takin... |
I have a question regarding the appropriate use of SQL Server database schemas and was hoping that some database gurus might be able to offer some guidance around best practice.
Just to give a bit of background, my team has recently shrunk to 2 people and we have just been merged with another 6 person team. My team had... |
I'm working on a software problem at work that is fairly generic, but I can't find a library I like to solve it, so I'm considering writing one myself (at least a bare-bones version). I'll be writing some if not all of the 1.0 version at work, since I need it for the project. If turns out well I might want to bring th... |
Possible Duplicate:
What is the point of Java’s package naming convention?
What package name to choose for a small, open-source Java project?
I write Java (and derivative languages with package names) for personal use, but I don't have a personal domain name, so the standard packaging naming convention doesn't hold.... |
Background
I'm trying to improve my group's current web app development pattern. Our current pattern is something we came up with while trying to rich web apps on top of ASP.NET WebForms (none of us knew ASP.NET MVC). This is the current pattern:
!
Our application is using the WinForms Framework.
Our ASPX pages are e... |
I have a situation where a custom class is a property of another class.
What I need to be able to do, if it is possible at all, is obtain a reverse to the "parent" class (ie the the class that holds the current class as a property).
For Instance:
Public Class Class1
...
public readonly property Prop11 as Class2
p... |
There is an option in C# to execute code unchecked. It's generally not advised to do so, as managed code is much safer and it overcomes a lot of problems.
However I am wondering, if you're sure your code won't cause errors,
and you know how to handle memory then why (if you like fast code) follow the general advice?
... |
I have a data intensive iOS app that is not using CoreData nor does it support iCloud synching (yet). All of my objects are created with unique keys. I use a simple long long initialized with the current time. Then as I need a new key I increment the value by 1. This has all worked well for a few years with the app run... |
I'm about to participate in a Coding Kata and I would like to do it in JavaScript.
What tools and libraries do I need for TDD in JavaScript?
|
Please note, I am asking about writing LALR parser, not writing rules for LALR parser.
What I need is...
...to mimic YACC precedence definitions. I don't know how it is implemented, and below I describe what I've done and read so far.
For now I have basic LALR parser written. Next step -- adding precedence, so 2+3*4 c... |
I have developed a library at my former employer.
After my employment ended, I got to take the library with me.
Does the Apache v2 prohibit renaming packages as long as I keep the license header intact?
|
I'm writing a class which is roughly analogous to a CancellationToken, except it has a third state for "never going to be cancelled". At the moment I'm trying to decide what to do if the 'source' of the token is garbage collected without ever being set.
It seems that, intuitively, the source should transition the assoc... |
I'm developing an application to help school principals in dedicating teachers to classes and courses over the hours of a week (scheduling). The scenario is roughly something like this:
User enters the list of teachers and their free times into the system
User enters the list of courses for this semester
User enters t... |
When I write code in Visual Studio, ReSharper (God bless it!) often suggests me to change my old-school for loop in the more compact foreach form.
And often, when I accept this change, ReSharper goes a step forward, and suggests me to change it again, in a shiny LINQ form.
So, I wonder: are there some real advantages, ... |
I'm looking to build a Virtual Machine as a platform independent way to run some game code (essentially scripting).
The Virtual Machines that I'm aware of in games are rather old: Infocom's Z-Machine, LucasArts' SCUMM, id Software's Quake 3. As a .net Developer, I'm familiar with the CLR and looked into the CIL Instruc... |
I am trying to implement a virtual file system structure in front of an object storage (Openstack). For availability reasons we initially chose Cassandra, however while designing file system data model, it looked like a tree structure similar to a relational model. Here is the dilemma for availability and partition tol... |
I have modified the source code of an MIT licensed project, and I have added new classes to it as well. Please correct me if I am wrong, but I think that it is legal to add my copyright notice above the license and remove the other one. But how should I attribute the contribution of the previous authors? Should I use ... |
I'm looking for process-relative information on open-source Swing projects:
how the task was described
how many developers were involved
how much time the solution was taken
etc.
Are there any open source (online) chronicles in that direction? I strongly prefer projects that include the authors' names.
I watched thi... |
What reasons to companies have for open-sourcing libraries and applications?
Doing this may allow a developer to better understand the code, but could doing this allow people to find and exploit vulnerabilities in the library or application?
|
Consider this:
int f(int x)
{
return 2 * x * x;
}
and this
int squareAndDouble(int y)
{
return 2*y*y;
}
If you found these in independent bodies of code, you might give the two programmers the benefit of the doubt and assume they came up with more-or-less the same function independen... |
I have a fairly in depth question which probably doesn't have an exact answer.
As a software engineer, I am usually tasked with working on a program or project with minimal understanding of how other components or programs in the project interact with each other. When one program fails in a sea of multiple components ... |
I'd like to release an application that basically has the license of "the code is GPLd but forks cannot use the name or logo", with the intent of avoiding confusion to users.
Is that possible or is it an all or nothing deal?
|
This is somewhat related to my other question, but is actually different.
I would like to license a Windows Phone application under the GPL. All other Windows Phone Marketplace issues aside (I'll ask those on the forums), I'd like to include icons that ship with the SDK in my application. While this is common practice ... |
I support and develop a large system that uses various technologies e.g. c++,.net,vb6 etc. I am a sole developer.
I am debating whether now is the right time to approach my manager (who is not a developer) to ask if another developer can be recruited.
I don't have any experience working in software teams. I have alw... |
I have seen several developers looking for a solution for this problem: accessing session information from a different WAR (even when inside the same EAR) - here are some samples: Any way to share session state between different applications in tomcat?, Access session of another web application, different WAR files, sh... |
KISS ("keep it simple, stupid" or "keep it simple stupid", see e.g. here) is an important principle in software development, even though it apparently originated in engineering. Citing from the wikipedia article:
The principle is best exemplified by the story of Johnson handing a team of design engineers a handful of ... |
In our team meeting today a senior member brought up the proposal that we should be having a common location/structure for our development solutions.
A couple of his points were:
Making it common meant when talking about projects and emailing stuff everyone is on the same wavelength and knows where to look.
If there i... |
We filter and analyse seats for events. Apparently writing a domain query language for the floor people isn't an option. I'm using C# 4.0 & .NET 4.0, and have relatively free reign to use whatever open-source tools are available. </background-info>
If a request comes in for "FLOOR B", the sales people want it to sho... |
I tried to evaluate a Clojure expression with nested shorthand functions today, and it wouldn't let me.
The expression was:
(#(+ % (#(+ % (* % %)) %)) 5) ; sorry for the eye bleed
The output was:
IllegalStateException Nested #()s are not allowed clojure.lang.LispReader$FnReader.invoke (LispReader.java:630)
...and a b... |
Before being release to the public, has the syntax of any programming language undergone usability testing? If so, what kinds of testing was performed, what were the results, and what impact did the testing results have on the design of the language?
|
When someone refers to "Development Automation", what is it exactly?
What are some frameworks for development automation?
My boss asked me to develop a strategy for implementing such in the company but I have not found much information related to the matter. Google seems to think I am referring to testing automation, w... |
In Objective-C, there are several methods like initWithContentsOfFile:encoding:error: where one passes in a reference to an NSError object for the error: parameter. In this example, the value of the NSError object passed in can change based on what goes on at runtime when the method is being called and whether the body... |
Problem Summary:
Long story short, I inherited a code base and a development team I am not allowed to replace and the use of God Objects is a big issue. Going forward, I want to have us re-factor things but I am getting push-back from the teams who want to do everything with God Objects "because its easier" and this m... |
Our team is considering using Mule in a large scale medium volume internal facing transactional banking application.
At first Mule would just be used as an application server although it is possible some of its esb/orchestration features would be used in the future.
I have no experience with mule, being new on the team... |
I am building a WPF client application using the MVVM pattern that provides an interface on top of an existing set of business logic residing in a library which is shared with other applications. The business library followed a domain-driven architecture using CQRS to separate the read and write models (no event sourc... |
After looking around the internet, I decided to create DAOs that returned objects (POJOs) to the calling business logic function/method.
For example: a Customer object with a Address reference would be split in the RDBMS into two tables; Customer and ADDRESS. The CustomerDAO would be in charge of joining the data from... |
My manager pushes me to use his self defined best practices. All of these practices are based on is own assumptions. I disagree with them and I would like to have some feedback of well experienced people about these practices. I would prefer answers from people involved in the maintenance of huge products and people wh... |
I find myself pondering over this question from time to time, again and again. I want to do things the right way: to write clean, understandable and correct code that is easy to maintain. However, what I end up doing is writing patch upon a patch; just because there is no time, clients are waiting, a bug should be fixe... |
Are there any common practises for commenting the regular expressions: inline comments referring different part of RegEx or general comment for all expression?
|
I post the origin question in stackoverflow, some people suggest me to post here
I've always have trouble with dynamic language like Python.
Several problems:
Typo error, I can use pylint to reduce some of these errors. But there's still some errors that pylint can not figure out.
Object type error, I often forgot wha... |
Quoting from Wikipedia
The Document Object Model (DOM) is a cross-platform and language-independent convention for representing and interacting with objects in HTML, XHTML and XML documents.
and from wc3
In order to provide a precise, language-independent specification of the DOM interfaces, we have chosen to define... |
How do you evaluate a product owner? More specifically, how would one conduct a performance review of a product owner? What qualities or characteristics would one look at when reviewing a product owner?
|
In my work (writing scientific software in C++), I often get asked by the people who use the software to get their work done to add some functionality or change the way things are done and organized right now. Most of the time this is just a matter of adding a new class or a function and applying some glue to do the jo... |
I am considering writing an Android reader software that can read ePubs and display them. I checked the ePub standard documents. However, these contain a lot of information. So I am wondering what is the process of implementing a standard for a file format. What are the steps to get a working implementation without... |
From my general understanding I believe UserContext for a web application is supposed to hold user authentication and authorization (user roles) information.
As part of user roles, there are definitions on who can access what data and accordingly the corresponding reference data is loaded into the UserContext as well.
... |
I'm doing work that involves writing code and managing developers in a "special projects" division of a large company. I'd like to define my role better and figure out if there's an industry standard term for what I do, so that it will be easier for me to research best practices and work on a career path
What I do all... |
So I got started with a real project of mine on GitHub and things are going pretty well and ideas are flowing a lot faster than I initially thought. In order to keep things organized, I setup some branches so I can develop different features separately.
Now when I push my branch to GitHub, I have that section where I ... |
I am working on a number of web projects for a firm. Most of the projects are about one or two pages of input and then doing a save to a MySQL database. My system administrators are pushing to try to get session replication working in JBoss, but I don't really see any need for it and all of its overhead. We need load b... |
I'm new to web programming. I'm more experienced and comfortable with client-side code. Recently, I've been dabbling in web programming through Python's Google App Engine. I ran into some difficulty while trying to write some simple apps for the purposes of learning, mainly involving how to maintain some kind of consis... |
I'm developing a commercial CMS, which I'm going to sell. I use jQuery, also I use date and time picker jQuery plugin in it, I can say this is just a 1% of my big script.
I don't want sell my whole program as GPL because of these two small integrations (jQuery and DateTime picker).
My questions:
I'm worried about the... |
My requirement is to store a large number of files within a single file.The files stored could be anything like images, videos or simple text files as well. I want some ideas to implement the same. I am thinking of implementing a file system within a file, but am not sure if its a good idea.
Adding in more details as r... |
In my department we are developing several smaller AddOns for some unified communication server. For versioning and distributed development we use a Team Foundation Server 2012.
But: there is only one large TFS solution for all of our applications and libraries:
Main Solution
Applications
App 1
App 2
App 3
External... |
My team is entering into some discussions on source control (process and possibly tools) and we would like a tool agnostic terminology for the various activities. The environment does have multiple (old) VCS's, and multiple desired (new) VCS's. Is there a standard definition of activities, or at least some commonly acc... |
In PHP and Python one can iterate over the local variables and, if there is only once choice where the value matches, you could say that you know what the variable's name is, but this does not always work. Machine code does not have variable names. C compiles to assembly and does not have any native reflection capabili... |
I understand the difference between the two architectures is the separation of instructions from data in the Harvard architecture. But how do I know which type of system I'm on? Is it possible to write a program such that the program determines whether the system is von Neumann or Harvard? Could there be another archit... |
Back in 2008, smartphones were a small market and it was commonplace for sites to be designed for a fixed width - say, 900px or 960px - with the page centered if the browser window was larger. Many designers said fluid width was better, but since user screens typically varied between 1024x768 and 1920x1080, fluid width... |
To quote the license itself:
Copyright (C) [year] [copyright holders]
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, cop... |
I am trying to understand the SOLID principles of OOP and I've come to the conclusion that LSP and OCP have some similarities (if not to say more).
the open/closed principle states "software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification".
LSP in simple words st... |
There are a lot of threads discussing existence of WPF/Silverlight/HTML5 on Windows 8, I just need to clarify the picture about desktop applications only, I have following queries to the experts
What are the technologies available for developing desktop applications on Windows 8?
What are the technologies I can use fo... |
This is basically a question about what are weak entities? When should we use them? How should they be modeled?
What is the main difference between normal entities and weak entities? Does weak entities correspond to value objects when doing Domain Driven Design?
To help keep the question on topic here is an example tak... |
I want to know if it is possible to pass a Structure as a parameter in c# method and if possible, is it a good practice to do so?
I have a c# method which is taking six arguments, i really hate that. I could create a carrier class for that and pass it as an argument, but i want to know if structure could do the job.
I ... |
Can anyone explain to me why JVMs (I didn't check too many, but I've never seen one that didn't do it that way) need to run on a fixed heap size? I know it's easier to implement on a simple contiguous heap, but the Sun JVM is now over a decade old, so I'd expect them to have had time to improve this.
Needing to define ... |
Possible Duplicate:
When do you use a struct instead of a class?
While working in OOPs, we always battle around structures and classes.
But in real world, we always sticks to classes. I just want to know what is the practical usage of structures in C# and where are they beneficial over the classes.
Or they are just ... |
I've been reading up on Scrum recently. From my understanding, a meeting is held before the sprint starts, to decide what gets moved from the product backlog to the upcoming sprint backlog. Once a feature is completed in the current sprint, it will go into the "Ready to QA" bucket, and it's at this point that I'm getti... |
Our company wants to create a single department for all software development efforts (rather than having software development managed by each business unit). Business units would then "outsource" their software needs to this department. What would you setup as concerns/expectations that must be cleared before doing thi... |
Our enterprise is having some problem when the number of incoming request goes beyond a certain amount.
To make things simpler, we have N websites that uses, amongst other, a local web service. This service is hosted by IIS, and it's a .NET 4.0 (C#) application executed in a farm. It's REST-oriented, built around Open... |
Several times, I've found myself in a situation where I want to add functionality to an existing Observer-Observable relationship.
For example, let's say I have an Observable class called PriceFeed, instances of which are created by a variety of PriceSources. Observers on this are notified whenever the underlying Pr... |
Brief description of problem: imagine having some vector picture(s) and text annotations on the sides outside of the picture(s).
Now the task is to scale the whole composition while preserving the aspect ratio in order to fit some view-port. The tricky part is that the text is not scalable only the picture(s). The d... |
This is a follow up question to my original question. I'm thinking of going with generating diffs and storing those diffs in the database 'History' table.
I'm using diff-match-patch library to generate what is called a 'patch'. On every save, I compare previous and new version and generate this patch. The patch could... |
Refactoring tools (like ReSharper) often can't be sure whether to rename a given identifier when, for example refactoring a JavaScript function. I guess this is a consequence of JavaScript's dynamic nature.
ReSharper solves this problem by offering to rename reasonable lexical matches too. The developer can opt out of ... |
I'm a developer with a CS degree and have work experience doing development in a number of languages for almost 3 years.
Today I had an interview, overall it went quite well, I prepared for most of the questions and felt ready for anything. At the end of the interview, they gave me ONE programming question...a proble... |
How would one sort a list of objects that have more than one sortable element?
Suppose you have a simple object Car and car is a defined as such:
class Car {
public String make;
public String model;
public int year;
public String color;
// ... No methods, just a structure / container
}
I designed a... |
I understand that the classical model from the lambda-papers is not valid for Python.
And the closures are not the mathematical model of the implementation of the Python system.
So which model is it?
|
I am building a PHP application for a client and I'm seriously considering WordPress or a simple framework that will allow me to quickly build out features like forums, etc.
However, the client is adamant about having "full access" to the database and the ability to "mine the data." Unfortunately, I'm almost certain t... |
We are trying to decide on a good way to do version numbering for software components, which are depending on each other.
Let's be more specific:
Software component A is a firmware running on an embedded device and component B is its respective driver for a normal PC (Linux/Windows machine). They are communicating with... |
I'm about to start work on a new version (version 4) of my commercial application. I use Subversion.
Based on your experiences, mistakes, and successes, how would you recommend I set up the new version in Subversion?
Here's some info: I intend to keep releasing critical updates in version 3 for some time after version ... |
Should the singleton be designed so that it can be created and destroyed at any time in program or should it be created so that it is available in life-time of program. Which one is best practice? What are the advantages and disadvantages of both?
EDIT :- As per the link shared by Mat, the singleton should be static. ... |
I know there are lots of posts for internationalization, but this is something I didn't found while searching.
I have a PHP Web application, which is pretty big right now. It's developed actively for 4 years and wasn't built with internationalization in mind. Text is everywhere - in plain HTML, in PHP variables, in ech... |
Given an array of positive integers in increasing order. Separate them in two series, an arithmetic sequence and geometric sequence. The given array is such that a solution do exist.
The union of numbers of the two sequence must be the given array.
Both series can have common elements i.e. series need not to be disjoin... |
I manage a rather large, feature full nightmare of a site which has no end of feature creep settings/options/etc.
Up to now its been coded in a procedural/functional way and would like to move to an OO,MVC setup. I'm quite new to it all but have done alot of research and feel that CodeIgniter is a code choice of framew... |
I wonder, sources like wikipedia or templates I found shows that Functional spec is a part of System requirement documents. I always thought that SRD is just overall decsription of the system, with all functional and non functional requirements. Yet I thought that Functional spec is more detailed and it is a separate d... |
I have submitted a patch for a GPL'd project and now a third-party wants to include this patch in a product. They have asked me what license my patch uses.
Does my patch have to adopt the GPL license? Or I can choose an alternative one?
|
Pash is an open source reimplementation of Windows PowerShell. It was released in 2008, and has been idle since then. I would like to take up the mantle.
It's not clear what the license is. There is no LICENSE file or license details in the code.
The only reference to a license I can find is on this page: http://sourc... |
We have a defined service layer hosted in WCF. We are now building a website that will need to use the services functionality. The website is being written in ASP.NET MVC 4 and I'm trying to decide how to reference the WCF service from the MVC app. It's a large complex website and it will be changing on a weekly basis.... |
I have a lot of legacy CSS files from what was a Rails 2.x app that got upgraded to Rails 3.2.8, and I want to switch over to using the Rails asset pipeline for stylesheets. The issue is, the CSS stuff is messy in terms of huge lines of code, duplicate file names, and unorganized folder structure.
After looking through... |
Given a garbage-collected framework, when using an IOC container to inject purely stateless services, is it generally better to use the container's single-instance lifespan or to recreate the object each time it is used and throw it, and all its dependencies, away as soon as you're done with them?
|
I need to implement time zones in a very large and old Delphi system, where there's a central SQL Server database and possibly hundreds of client installations around the world in different time zones. The application already interacts with the database by only using the date/time of the database server. So, all the ti... |
Often, projects use programming language X, but would use programming language Y if they were started from scratch.
For example, big numerical models may be written entirely in Fortran. Whereas this might be a reasonable choice for the components that need to run fast (alternative would be C or C++), it might be a poor... |
I'm looking for info on creating a remote management interface for our software. This is not anything illicit. Our software is for live TV production and once they go on-air we can't access the PC (usually through LogMeIn).
I would like to be able to upload/download files and issue commands to our software. The comman... |
I currently reading a lot about Design Patterns and I have been watching various Pluralsight videos from their library. Now so far I have learnt the following:
Repository Pattern
Unit of Work Pattern
Abstract Factory Pattern
Reading the awesome "DI in .NET" book
Now I read lot about Services and Service Layers and wa... |
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