Search Results

Search found 16554 results on 663 pages for 'programmers identity'.

Page 143/663 | < Previous Page | 139 140 141 142 143 144 145 146 147 148 149 150  | Next Page >

• Multithreaded UI desktop application issues

  - by igor

  I am involved into development a rich UI project: desktop windows application. Application uses asynchronous invocations and in its turn it should be ready to process external messages (events). The problem is clear: at first time it was built as a simple prototype and it was not stress tested and all was fine. Then application was grown: the number of calls to server and number of events from server are high and performance is low. What is more users noticed that sometimes performance is extremal low. Asynchronous invocations based on thread pool (BeginInvoke, EndInvoke), external events are going from WCF service (.NET 3.5). My goal is synchronization of all tasks and putting priorities to every executions in desktop application. My question is: is there any practice how to reach my goal: patterns, task priority list, others? What should I do at first, second and next times? Thanks

  Read the article

• Are there examples of non CRUD approaches?

  - by Pieter B

  I'm a programmer but also have worked as an archivist. As archivist it's a lot about keeping data. I often get into arguments with colleagues when it comes to operations on data. I don't like the U and the D in CRUD too much. Rather then update a record I prefer to add a new one and have a reference to the old record. That way you build a history of changes. I also don't like deleting records but rather mark them as inactive. Is there a term for this? Basically only creating and reading data? Are there examples of this approach?

  Read the article

• MVC: Why put the business logic in the model? What happens when I've multiple types of storage?

  - by Steffen Winkler

  I always thought that the business logic has to be in the controller and that the controller, since it is the 'middle' part, stays static and that the model/view have to be capsuled via interfaces, that way you could change the business logic without affecting anything else, program multiple Models (one for each database/type of storage) and a dozens of views (for different platforms for example). Now I read in this question that you should always put the business logic into the model and that the controller is deeply connected with the view. To me, that doesn't really make sense and implies that each time I want to have the means of supporting another database/type of storage I've to rewrite my whole model including the business logic. And if I want another view, I've to rewrite both the view and the controller. May someone explain why that is or if I went wrong somewhere? Currently, that whole thing doesn't really make sense to me.

  Read the article

• Designing persistence schema for BigTable on AppEngine

  - by Vitalij Zadneprovskij

  I have tried to design the datastore schema for a very small application. That schema would have been very simple, if not trivial, using a relational database with foreign keys, many-to-many relations, joins, etc. But the problem was that my application was targeted for Google App Engine and I had to design for a database that was not relational. At the end I gave up. Is there a book or an article that describes design principles for applications that are meant for such databases? The books that I have found are about programming for App Engine and they don't spend many words about database design principles.

  Read the article

• Good ruby book with exercises? [closed]

  - by watabou

  I find that I learn the best with a book that has a number of exercises at the end of each chapters. A great example of this is C++ Primer Plus by Stephen Prata or Scientific Programming with Python or the Horstmann Java books. All of those books have a number of programming exercises at the end tailored to that specific chapter. I love the styles of those book and was wondering if there is anything similar for Ruby. I've extensively searched google for this and people have been suggesting different stuff like different websites like Ruby Koans and LRTHW but honestly, I've tried those and they aren't for me. I taught myself Python with the the Hard Way book and to be honest, it's not for me. Now, forgive me if I'm blunt but does anyone have a Ruby programming BOOK (i.e. not a website), that has EXERCISES in it? I do NOT want a website, unless the book is only or is freely available online by the author, similar to the Hard Way books. I would say that I'm a intermediate level programmer with only some Ruby experience but if you know of a beginner book on Ruby, that is fine too. Thanks in advance, I would really really appreciate the help.

  Read the article

• Why (not) logic programming?

  - by Anto

  I have not yet heard about any uses of a logical programming language (such as Prolog) in the software industry, nor do I know of usage of it in hobby programming or open source projects. It (Prolog) is used as an academic language to some extent, though (why is it used in academia?). This makes me wonder, why should you use logic programming, and why not? Why is it not getting any detectable industry usage?

  Read the article

• Can jobs limit future career paths?

  - by Kenneth

  I'm at the beginning of my career and I'm currently looking for jobs. I'm wondering to what extent choosing a particular job would limit future job options. I know that the farther you get away from college graduation the more employers look at your experience vs your actual degree. So I'm wondering with the ultimate goal of being in software engineering/computer science would taking a job in the IT realm limit my options of getting into software engineering? Likewise would taking a job in software quality assurance limit me from pursuing more of a main developer position later even though both are in software engineering?

  Read the article

• Does it make sense to develop open source python library for database inspection?

  - by gruszczy

  Some time ago I came up with an idea for a library for database inspection. I started developing it and got some very basic functionality, just to check if that's possible. Recently however, I get second thoughts, whether such project would really be useful. I am actually planning to develop following software suite: library for python, that would provide easy interface to inspect database structure, desktop application in PyQt that would use the interface to provide graphical database inspection, web application in Django that would use the interface to provide database inspection through the browser. Do you think such suite would be useful for other developers/database administrators/analysts? I know, that there is pgadmin for PostgreSQL and some tool for sqlite3 and that there is Java tool called DBInspect. Usually I would be against creating new tool and rather join existing project, but I am not Java programmer (and I would rather stick to python or C, which I like) and none of these projects provide a library for database inspection. Anyway I would like to hear some opinions from fellow developers, whether such project make sense or I should try to spend my free time on developing something else.

  Read the article

• What you don't like in your web-framework of "choice"?

  - by 0101

  Most of the time we don't have a choice were it comes to web-frameworks, in Java every company is using a different one(big thanks to web-framework developers - you will burn in hell). However now I have a choice of picking which framework we will use, I will probably pick the one I know the best since I know how to by-pass its downfalls. In every comparation we will only see what is good in that frameworks and any downfalls will be swept under the carpet. What are the downfalls of most known frameworks?

  Read the article

• Writing cross-platforms Types, Interfaces and Classes/Methods in C++

  - by user827992

  I'm looking for the best solution to write cross-platform software, aka code that I write and that I have to interface with different libraries and platforms each time. What I consider the easiest part, correct me if I'm wrong, is the definition of new types, all I have to do is to write an hpp file with a list of typedefs, I can keep the same names for each new type across the different platforms so my codebase can be shared without any problem. typedefs also helps me to redefine a better scope for my types in my code. I will probably end up having something like this: include |-windows | |-types.hpp |-linux | |-types.hpp |-mac |-types.hpp For the interfaces I'm thinking about the same solution used for the types, a series of hpp files, probably I will write all the interfaces only once since they rely on the types and all "cross-platform portability" is ensured by the work done on the types. include | |-interfaces.hpp | |-windows | |-types.hpp |-linux | |-types.hpp |-mac | |-types.hpp For classes and methods I do not have a real answer, I would like to avoid 2 things: the explicit use of pointers the use of templates I want to avoid the use of the pointers because they can make the code less readable for someone and I want to avoid templates just because if I write them, I can't separate the interface from the definition. What is the best option to hide the use of the pointers? I would also like some words about macros and how to implement some OS-specifics calls and definitions.

  Read the article

• Where can I find out the following info on python (coming from Ruby)

  - by Michael Durrant

  I'm coming from Ruby and Ruby on Rails to Python. Where can I find or find resources about: The command prompt, what is python's version of 'irb' django, what is a good resource for installing, using, etc. pythoncasts... is there anything like railscats, i.e. good video tutorials web sites with the api info about what version have what and which to use. info and recommendations on editors, plugins and IDE's common gotchas for newbies and good things to know at the outset scaling issues, common reasons what is the equivalent of 'gems', i.e. components I can plug in what are popular plugins for django authentication and forms similar to devise and simple_form testing, what's available, anything similar to rspec? database adapters - any preferences? framework info - is django MVC like rails? OO'yness. Is everything an object that gets send messages? Different paradign? syntax - anything like jslint for checking for well-formed code?

  Read the article

• Studies of Pair Programming on Translation Projects

  - by gmletzkojr

  I am looking for information (ie, studies, metrics, etc) for pair programming when translating a project from an "older" language to a "newer" language. In this particular case, translating means line for line translation where ever possible, and only modifying the design when absolutely necessary, not when the modification would provide improved performance. I have performed pair programming in new development, and I am well aware of the pros and cons of pairing in that environment. However, I haven't been able to find any information in this particular case. Any help is appreciated.

  Read the article

• Why is there a "new" keyword in Go?

  - by dystroy

  I'm still puzzled as why we have new in Go. &Thing{} is as clear and concise as new(Thing) to Go coders and it uses only constructs you often use elsewhere. It's also more extensible as you might change it to &Thing{3} or &Thing{Feets:7}. In my opinion, having a supplementary keyword is costly, it makes the language more complex and adds to what you must know. And it might mask to newcomers what's behind instantiating a struct. It also makes one more reserved word. So what's the reasoning behind new ? Is it something useful ? Should we use it ?

  Read the article

• Host Matching Interview Tips?

  - by Lambert

  So I've gotten past the technical interviews for a company, and now I'm having an interview with my potential host for an internship during the summer. What are some tips for interviews like these? I know they're not really technical, but I'm not sure what exactly they are meant to gauge. Any tips on what to say, how to show my interest in the project, questions I should ask, etc.? Edit: Side question: What's a good synonym for the word "interesting" or "interested"? I find that I use those words a bit too often (e.g. "I'm definitely interested in working on the front-end!" or "Yeah, that sounds really interesting, I would love learning more about it." or "Those all sound really interesting, I'm definitely interested in all of them!", etc.)... but I can't seem to find any good synonyms. (Online sites don't really give me good synonyms.) Any ideas?

  Read the article

• Idea of an algorithm to detect a website's navigation structure?

  - by Uwe Keim

  Currently I am in the process of developing an importer of any existing, arbitrary (static) HTML website into the upcoming release of our CMS. While the downloading the files is solved successfully, I'm pulling my hair off when it comes to detect a site structure (pages and subpages) purely from the HTML files, without the user specifying additional hints. Basically I want to get a tree like: + Root page 1 + Child page 1 + Child page 2 + Child child page1 + Child page 3 + Root page 2 + Child page 4 + Root page 3 + ... I.e. I want to be able to detect the menu structure from the links inside the pages. This has not to be 100% accurate, but at least I want to achieve more than just a flat list. I thought of looking at multiple pages to see similar areas and identify these as menu areas and parse the links there, but after all I'm not that satisfied with this idea. My question: Can you imagine any algorithm when it comes to detecting such a structure? Update 1: What I'm looking for is not a web spider, but an algorithm do create a logical tree of the relationship of the pages to be able to create pages and subpages inside my CMS when importing them. Update 2: As of Robert's suggestion I'll solve this by starting at the root page, and then simply parse links as you go and treat every link inside a page simply as a child page. Probably I'll recurse not in a deep-first manner but rather in a breadth-first manner to get a more balanced navigation structure.

  Read the article

• Tool to convert from XML to CSV and back to XML without losing information?

  - by Lanaru

  I would like to convert an XML file into CSV, and then be able to convert that CSV back into the original XML file. Is there a tool out there that makes this possible? The reason I want to do this is that I want to generate a ton of data to be stored in an xml file that my program will parse. I can easily generate a lot of data with a CSV file through the use of Excel macros, so that's why I'm looking for a tool to convert between these two formats. Any alternative suggestions are greatly appreciated.

  Read the article

• Right approach to convert a word document that contains forms in a web app

  - by carlo

  I would know if someone can suggest a good approach to convert a word document that contains forms in a web app, specifically in an application built with WaveMaker.(but I'm curious also with a general approach not strictly dependent on the technology that I have mentioned). For example, if I have a page in a word document, that maps the fields of a user entity, what could be my "programmer approach" to convert it without much use of copy-paste, but with a dynamic methodology ?

  Read the article

• How far to go with Domain Driven Design?

  - by synti

  I've read a little about domain driven design and the usage of a rich domain model, as described by Martin Fowler, and I've decided to put it in practice in a personal project, instead of using transaction scripts. Everything went fine until UI implementation started. The thing is some views will use rich components that are backed up by unusual models and, thus, I must transform the domain model into what is used by those components. And that transformation is specially "complex" in the view-to-domain portion, up to the point that some business logic is involved. Wich brings me to the questioning: where should I do these adaptations? So far I've got the following conclusions: Doing it in the presentation layer is good because, well, if that layer imposes restrictions in it's model, then it should be the one to handle them. But it's bad because there'll be some business leakage. If I do it on the services objects (controllers, actions, whatever), then it'd be good because there won't be any change to the domain API just because of presentation layer, but it's bad because then I'd have transaction scripts, wich is not the intended design. Finally, if I do it on the domain model, there'd be no leakage of business logic at all. But in the future I could expect an explosion of the API into a series of methods designed just to handle that view-model <- domain-model adaptation. I hope I could make myself clear on this.

  Read the article

• Data transfer between"main" site and secured virtual subsite

  - by Emma Burrows

  I am currently working on a C# ASP.Net 3.5 website I wrote some years ago which consists of a "main" public site, and a sub-site which is our customer management application, using forms-based authentication. The sub-site is set up as a virtual folder in IIS and though it's a subfolder of "main", it functions as a separate web app which handles CRUD access to our customer database and is only accessible by our staff. The main site currently includes a form for new leads to fill in, which generates an email to our sales staff so they can contact them and convince them to become customers. If that process is successful, the staff manually enter the information from the email into the database. Not surprisingly, I now have a new requirement to feed the data from the new lead form directly into the database so staff can just check a box for instance to turn the lead into a customer. My question therefore is how to go about doing this? Possible options I've thought of: Move the new lead form into the customer database subsite (with authentication turned off). Add database handling code to the main site. (No, not seriously considering this duplication of effort! :) Design some mechanism (via REST?) so a webpage outside the customer database subsite can feed data into the customer database I'd welcome some suggestions on how to organise the code for this situation, preferably with extensibility in mind, and particularly if there are any options I haven't thought of. Thanks in advance.

  Read the article

• New to Java and Spring. What are some good design principles for an inexperienced java developer like me?

  - by Imtiaz Ahmad

  I am learning Java and have written a few small useful programs. I am new to spring but have managed to understand the concept of dependency injection for decoupling. I'm trying to applying that in my development work in an enterprise setting. What are the 3 most important design patterns I should master (not for interview purposes but ones that I will use every day in as a good java developer)? Also what are some good java design considerations and practices in coding specifically in Java? My goal is write good decoupled and coherent programs that are easy to maintain that don't make me standout as a java rookie. Stuff like not beginning my package names with com. have already made me precariously visible in my team. But they know I have 2 years of coding experience and its not in java.

  Read the article

• Record management system java web framework

  - by Kamil Tomšík

  We're currently reconsidering technologies and frameworks to get more agile with "simple" RMS CRUD-based projects. In short, short-living things like this Right now we have a custom extension on top of SmartGWT but after some time it has proven not to be flexible enough. I also personally dislike the java-js compilation process and the whole GWT codebase. Not only is the design ugly, it also makes certain low-level js things very complicated if not completely impossible. So what I'm looking for is: closest to web as possible, like JSF or possibly Tapestry, it is very important to be able get "low" and weave framework if necessary. Happens more often than we thought. datagrid capable - Ext.js & PrimeFaces looks pretty good, Vaadin does too. db-schema generators (optional, no matter in which way) If it were only on me, I'd probably stick to Ext.js + custom rest-based java solution, possibly generated from database schema (not sure about concrete tooling yet). I only have experience with vanilla Ext.js, vanilla GWT and JSF 2.0 / Seam, so it hard for me to judge or even propose other frameworks. What would be your proposition? What are the problems you've faced? What was your solution and how hard do you think it was to deal with them in "big picture"?

  Read the article

• What are the drawbacks of Python?

  - by Rook

  Python seems all the rage these days, and not undeservingly - for it is truly a language with which one almost enjoys being given a new problem to solve. But, as a wise man once said (calling him a wise man only because I've no idea as to who actually said it; not sure whether he was that wise at all), to really know a language one does not only know its syntax, design, etc., advantages but also its drawbacks. No language is perfect, some are just better than others. So, what would be in your opinion, objective drawbacks of Python. Note: I'm not asking for a language comparison here (i.e. C# is better than Python because ... yadda yadda yadda) - more of an objective (to some level) opinion which language features are badly designed, whether, what are maybe some you're missing in it and so on. If must use another language as a comparison, but only to illustrate a point which would be hard to elaborate on otherwise (i.e. for ease of understanding)

  Read the article

• Guide to the web development ecosystem

  - by acjohnson55

  I'm a long-time software developer, and I've been thrown in the deep, deep end of developing from the ground up what will hopefully be a highly scalable and interactive web application. I've been out of the web game for about 8 years, and even when I was last in it, I wasn't exactly on the cutting edge. I think I've made judicious design decisions and I'm quite happy with the progress I've been making so far, but new, hot web technologies keep crawling out of the woodwork and into my headspace, forcing me to continually revalidate my implementation decisions. Complicating things even further is the preponderance of out-of-date information and the difficulty of knowing what is out of date in the first place. What I'm wondering is, are there any comprehensive books or guides dedicated to compiling and comparing the technologies out there, end-to-end in the web application stack? I'm happy to learn new techs on demand, but I don't like learning about them after I've already spent time going in another direction. I'm looking for the sort of executive info a CTO might read to make sure the best architectural decisions are being made. And just to be clear, this is a question about resources, not about specific technology suggestions.

  Read the article

• How do I publicize a cool bookmarklet?

  - by Malvolio

  I wrote a really cool bookmarklet and now I want to tell everyone. I have absolutely no idea where to go, is there some sort of exchange for these things? In case anyone is curious: I was tired of having to retype URLs from my desktop browser on to my phone browser, with its itsy-bitsy keyboard, so I wrote a bookmarklet that converts the current URL to a QR code, which I can scan in a few seconds. javascript:window.location="http://chart.apis.google.com/chart?chs=250x250&cht=qr&chl="+escape(window.location)

  Read the article

• Should devs, testers and business users have one unified test script?

  - by Carlos Jaime C. De Leon

  In development, I would normally have my own test scripts that would document the data, scenarios and execution steps that I plan to test; this is my dev test plan. When the functionality has been deployed to Test, testers test it using their own test script that they wrote. In UAT, the business user then tests using their own test plan. In retrospect, it looks like this provides a better coverage, with dev tests having a mix of black and white box testing, while testers and business users focus on black box testing. But on the other hand, this brings up distinct test cases that only are executed per stage (ie. some cases which testers thought of are only executed on Test stage) and it would like the dev missed it, which makes it a finding/bug. Is it worth consolidating the test scripts from the start? Thus using one unified test script, or is it abit difficult to do this upfront?

  Read the article

< Previous Page | 139 140 141 142 143 144 145 146 147 148 149 150  | Next Page >