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  • Which java web technology to learn to develop Rich Internet Applications ?

    - by Cshah
    Hi, I have developed web applications using JSF (myfaces components). But in these days of responsive UI, JSF doesnt fare well. I m hearing a lot about AJAX, GWT, etc. So i wanted your opinion on which web technology/framework should i learn inorder to develop web applications for enterprise products. Some of the web technologies that i m hearing are: ICE Faces (With AJAX Bridge support) GWT extJS and extGWT JavaFX Apache Wicket Jquery AJAX Open laszlo Which of the above or the combination of the above would help me ? Some of the parameters on which you can rate these web technologies are: Ease of learning Maintainability of web application code Community support IDE support - Eclipse or NetBeans Off the shelf component availability (like textbox,table grids, option menus) License - Does it cost for commercial use ? User Experience - responsive UI. Shouldnt be sluggish A similar question on SO does answer my question partially. Would want more info though. EDIT: Answers collated: Based on the answers : AJAX would be the best thing to start for learning fundamentals, then learn JQUERY. Any component based frame work that can complement ajax,jquery ? Edit 2: If i had to design a web application like StackOverFlow (in java platform) which would be the best choice to learn and adopt? Wicket + Jquery, WiQuery GWT Some XYZ Faces technology(RichFaces/ICEFaces) + AJAX. Comments appreciated from some one who has worked with them and can rate them in the above mentioned parameters.

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  • The 10.6.3 os x update broke simulated key-presses for Nestopia.

    - by Lou Z.
    The iPhone app that I released is a wireless game controller, it translates touches on the device into key-presses on the networked Mac. This allowed for playing emulator (e.g. Nestopia) games using the iPhone as a controller. Of course, the day that I released it coincided with an os x update. After installing this update, the simulated key-presses no longer work in Nestopia! The crazier thing is, when I go to 'File Open' within Nestopia, I can cycle through the file list by hitting the up-arrow on my iphone controller; i.e. the simulated key-presses work in menu items, but not in the game itself. The code that I use to simulate keys is below. Given the list of changes here, can anyone identify which change would cause this problem? Thanks!! #define UP false #define DOWN true -(void)sendKey:(CGKeyCode)keycode andKeyDirection:(BOOL)keydirection{ CGEventRef eventRef = CGEventCreateKeyboardEvent(NULL, keycode, keydirection); CGEventPost(kCGSessionEventTap, eventRef); CFRelease(eventRef); }

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  • Javascript function push problem

    - by Stefan
    Hello i've following JS function. responseData:function(resp){ this.jsondata = eval('(' + resp + ')'); this.propList = []; for (var i = 0;i<this.jsondata.length;i++) { for (obj in this.jsondata[i]) { alert(obj); //shows the property name of obj this.propList.push({ obj : this.jsondata[i][obj] //insert only simple obj string }); } } return this.propList; } I want to insert in my propList the property name and the value, but instead inserting the property name this function inserts simple 'obj' as a string. What i'm doing wrong? greetings Stefan

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  • Ruler to measure in browser (firefox)

    - by danke
    I'm looking for a good ruler to use to measure distances in a browser. I use Firefox. Any good suggestions that are currently being used by other developers. I have firebug, but I don't think it has a ruler. Does it? I would think a ruler would have made it to firebug, but there doesn't seem to be one, or I'm not looking in the right location. Thanks

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  • Can I create object names from a text file in Python 2.7?

    - by user560100
    I'm working on a game project. I've created an object, Star(Object). I want to assign the name of the variables, dynamically, from a text file. If I have a text file with: Sol Centauri Vega I want the program to create the Star(Object) with variable names from the text file. I want the process automated, because I'm looking to create hundreds of stars. I could write the code out by hand: Sol = Star(Sol) Centauri = Star(Centauri) Vega = Star(Vega) But isn't there a way to automate this? Essentially, what I eventually want is a tuple with the list of stars, as their own objects. Then, when I am doing game maintenance, I can just iterate over all the objects in the tuple.

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  • What languages, preprocessors, and toolkits will Apple not allow you to develop iPhone OS 4.0 Apps w

    - by Tony Lambert
    According to articles on web Apple will not approve Apps that have code that is not originally developed in Objective C, C or C++. Found on the Web: 3.3.1 Applications may only use Documented APIs in the manner prescribed by Apple and must not use or call any private APIs. Applications must be originally written in Objective-C, C, C++, or JavaScript as executed by the iPhone OS WebKit engine, and only code written in C, C++, and Objective-C may compile and directly link against the Documented APIs (e.g., Applications that link to Documented APIs through an intermediary translation or compatibility layer or tool are prohibited). Can we build a list of things developer use that will and won't be allowed under these possible new rules? We can use: C, C++, Objective C We can't use: Flash, Monotouch C#, Pascal, Fortran, Perl, Python, Lex, Yacc, Unity (games engine), Java What others?

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  • Scalable Ticketing / Festival Website

    - by Luke Lowrey
    I've noticed major music festivals (at least in Australia) and other events that experience a peak in traffic when tickets go on sale have huge problems keeping their websites running well. I've seen a few different techniques used to try combat this such as short sessions and virtual queues but they dont seem to have much effect. If you were to design a website to sell a lot of tickets in a short amount of time how would you handle scalability? What technologies and programming techniques would you use?

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  • What should a developer know before building a public web site?

    - by Joel Coehoorn
    What things should a programmer implementing the technical details of a web site address before making the site public? If Jeff Atwood can forget about HttpOnly cookies, sitemaps, and cross-site request forgeries all in the same site, what important thing could I be forgetting as well? I'm thinking about this from a web developer's perspective, such that someone else is creating the actual design and content for the site. So while usability and content may be more important than the platform, you the programmer have little say in that. What you do need to worry about is that your implementation of the platform is stable, performs well, is secure, and meets any other business goals (like not cost too much, take too long to build, and rank as well with Google as the content supports). Think of this from the perspective of a developer who's done some work for intranet-type applications in a fairly trusted environment, and is about to have his first shot and putting out a potentially popular site for the entire big bad world wide web. Also: I'm looking for something more specific than just a vague "web standards" response. I mean, HTML, JavaScript, and CSS over HTTP are pretty much a given, especially when I've already specified that you're a professional web developer. So going beyond that, Which standards? In what circumstances, and why? Provide a link to the standard's specification. This question is community wiki, so please feel free to edit that answer to add links to good articles that will help explain or teach each particular point.

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  • How to communicate between Client and Server in a Client-Server Application?

    - by Sanoj
    I would like to implement an Client-Server Application, where the business-logic, security validations and a database are at the server and the user interface are at the client. I would like to implement clients in different languages i.e. one in WPF/.NET, one Swing/Java , one in Android/Java and maybe one HTML/JavaScript client. The server will be on Internet, so I would like to be able to have encrypted communication. The client will send some lists of items to be added to the database, or update items, and do some transactions. The server will check if the items are already updated by another client, or update the item, add new items or delete items. How do I solve the communication between clients and the server in such a system? I have been thinking about: http/https webserver, and sending messages in JSON or XML and use Web Sockets for bi-directional communication. Use http in a RESTful way, except when WebSockets are needed. But I guess there are better solutions for native desktop applications than http? CORBA - I have just heard about it, and it's old and complex. Not much talk about it these days. XMPP/Jabber - I have just heard about it and I don't know if it fits me at all. EJabberd seams to be a popular implementation. AMQP - I have just heard about it and I don't know if it fits me at all. RabbitMQ seams to be a popular implementation. Windows Communication Foundation, Java RMI, Java Message Service - but are they language independent? I guess some of these alternatives are on different levels, maybe I can have i.e xmpp or amqp in web sockets over https? What technologys are used for this problem in companies today? and what is recommended to use? I have no experience of them other than webservers and http. Please give me some guidance in this jungle. What are the pros and cons of these technologies in my situation?

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  • Good Administration Center Templates

    - by Alec Smart
    Hello, This may not be a programming question per se. But I am wondering what template do you use for your sites/webapps admin centers. Am looking primarily at free templates that give a basic structure. I know I can build my own, but I haven't had too much success in something that works for all my webapps/sites. Wondering if there is something nice and comprehensive available. Thank you for your time.

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  • Does <httpRedirect> in web.config work in a mono setup? Or is it IIS7 specific?

    - by Crystal
    We had some content restructure recently and I'd like to put in some redirect rules into web.config so bookmarks to the old pages can get routed to their new locations/pages. I tried using this approach: <location path="~/product/productA.aspx"> <system.webServer> <httpRedirect enabled="true" destination="~/product/category/productA.aspx" exactDestination="false" childOnly="true" httpResponseStatus="Permanent" /> </system.webServer> </location> But all I'm getting when I go to "http://www.oursite.com/product/productA.aspx" is our http 404 page. Am I doing something wrong, or is the httpRedirect tag in web.config not supported in mono? worked, but not ideal for what we want to achieve. Thank you :)

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  • Best way to deal with session handling in Zend Framework

    - by JACK IN THE CRACK
    So I'm starting up in Zend framework and looking to implement a site-wide "User" session.... something I can easily access from ALL modules/controllers in the application. I'm like, should I make a new namespace in the library and extend the controller, like: MyLib_Controller_Action extends Zend_Controller_Action { protected $_userSession; function preDispatch(Zend_Controller_Request_Abstract $req) { $this->_userSession = new Zend_Session_Namespace('user'); } } ANd then have all my controllers/modules/etc extend from that? Or should I create a Plugin or what? How would you go about making this plugin to pass the user session to the controller? Or do I do it in the bootstrap?? Again how to pass to controller? Also should I use Zend_Session_Namespace or Zend_Http_Cookie and also how do I encrypt and xss clean the cookie or is that did automagically?

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  • Any book on designing and implementing a CRPG engine?

    - by Fabzter
    Hi! First, let me tell you, I am not really interested in making my own rpg engine (at least not in the near future, hehe), but I do feel like I want to understand the internals of how a rpg engine works. Why? Well, because I like to read about programming and design, It keeps me motivated and excited, and because I know I will learn a lot, for, even when I have been programming for some years now, I never stop considering myself an ignorant... there are simply SO many things involving a game engine (specially rpg ones, like branching storylines, and items and economics!) I'm eager to know. I've been searching (and thus, finding) lots of info online, but it is never focused in what I'm interested (most of it talks about the mathematics and AI algorithms implementation, which I know quite well), which is the design of overall structure, patterns, scripting engine, decision engine... damn, so many things I can't even imagine, since I've never done any game programming. I hope you know have an idea of how I feel, and how I want to learn for the sake of learning, and why would I want you to tell me if you know if there exist books touching the topics that interest me the most.

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  • Facebook Connect: with no javascript?

    - by nafe
    Is it possible to write a website that uses Facebook connect without JavaScript? I have a site set up that works great using XFBML but this (obviously) fails when I visit with JavaScript disabled. I have a feeling that this is possible using the REST-api for Facebook but I'd still appreciate some pointers. There was a discussion about this on the Facebook forum.

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  • Rhapsody TestConductor Experiences

    - by vaiomike
    I was wondering whether anybody out there is actively using Rhapsody TestConductor? Or has tried it for a while, but then decided to turn it down for a particular reason? If so, what are your experiences, in which field do you apply it, what are the shortcomings, or why did you turn it down? At the moment we're considering TestConductor as our tool of choice for testing as it's already integrated into Rhapsody, and would like to find out how applicable it is to our project (btw, we're using Rhapsody 7.4 in C). P.S: Recommendations on good books about Model Based Testing are also appreciated.

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  • Good Name for a Music Player (like Spotify)

    - by LnDCobra
    I can't think of anywhere else to ask therefore I thought asking here would be the ideal place. Reason I'm asking is because for my Dissertation in my report I pretty much got told my name sucks. I ain't going to argue as its just "My Music Player" so any suggestions would be highly appreciated! I know it's pretty subjective but ANY help would be appreciated! I am not of the creative types of people :(

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  • Need help with implementing collision detection using the Separating Axis Theorem

    - by Eddie Ringle
    So, after hours of Googling and reading, I've found that the basic process of detecting a collision using SAT is: for each edge of poly A project A and B onto the normal for this edge if intervals do not overlap, return false end for for each edge of poly B project A and B onto the normal for this edge if intervals do not overlap, return false end for However, as many ways as I try to implement this in code, I just cannot get it to detect the collision. My current code is as follows: for (unsigned int i = 0; i < asteroids.size(); i++) { if (asteroids.valid(i)) { asteroids[i]->Update(); // Player-Asteroid collision detection bool collision = true; SDL_Rect asteroidBox = asteroids[i]->boundingBox; // Bullet-Asteroid collision detection for (unsigned int j = 0; j < player.bullets.size(); j++) { if (player.bullets.valid(j)) { Bullet b = player.bullets[j]; collision = true; if (b.x + (b.w / 2.0f) < asteroidBox.x - (asteroidBox.w / 2.0f)) collision = false; if (b.x - (b.w / 2.0f) > asteroidBox.x + (asteroidBox.w / 2.0f)) collision = false; if (b.y - (b.h / 2.0f) > asteroidBox.y + (asteroidBox.h / 2.0f)) collision = false; if (b.y + (b.h / 2.0f) < asteroidBox.y - (asteroidBox.h / 2.0f)) collision = false; if (collision) { bool realCollision = false; float min1, max1, min2, max2; // Create a list of vertices for the bullet CrissCross::Data::LList<Vector2D *> bullVerts; bullVerts.insert(new Vector2D(b.x - b.w / 2.0f, b.y + b.h / 2.0f)); bullVerts.insert(new Vector2D(b.x - b.w / 2.0f, b.y - b.h / 2.0f)); bullVerts.insert(new Vector2D(b.x + b.w / 2.0f, b.y - b.h / 2.0f)); bullVerts.insert(new Vector2D(b.x + b.w / 2.0f, b.y + b.h / 2.0f)); // Create a list of vectors of the edges of the bullet and the asteroid CrissCross::Data::LList<Vector2D *> bullEdges; CrissCross::Data::LList<Vector2D *> asteroidEdges; for (int k = 0; k < 4; k++) { int n = (k == 3) ? 0 : k + 1; bullEdges.insert(new Vector2D(bullVerts[k]->x - bullVerts[n]->x, bullVerts[k]->y - bullVerts[n]->y)); asteroidEdges.insert(new Vector2D(asteroids[i]->vertices[k]->x - asteroids[i]->vertices[n]->x, asteroids[i]->vertices[k]->y - asteroids[i]->vertices[n]->y)); } for (unsigned int k = 0; k < asteroidEdges.size(); k++) { Vector2D *axis = asteroidEdges[k]->getPerpendicular(); min1 = max1 = axis->dotProduct(asteroids[i]->vertices[0]); for (unsigned int l = 1; l < asteroids[i]->vertices.size(); l++) { float test = axis->dotProduct(asteroids[i]->vertices[l]); min1 = (test < min1) ? test : min1; max1 = (test > max1) ? test : max1; } min2 = max2 = axis->dotProduct(bullVerts[0]); for (unsigned int l = 1; l < bullVerts.size(); l++) { float test = axis->dotProduct(bullVerts[l]); min2 = (test < min2) ? test : min2; max2 = (test > max2) ? test : max2; } delete axis; axis = NULL; if ( (min1 - max2) > 0 || (min2 - max1) > 0 ) { realCollision = false; break; } else { realCollision = true; } } if (realCollision == false) { for (unsigned int k = 0; k < bullEdges.size(); k++) { Vector2D *axis = bullEdges[k]->getPerpendicular(); min1 = max1 = axis->dotProduct(asteroids[i]->vertices[0]); for (unsigned int l = 1; l < asteroids[i]->vertices.size(); l++) { float test = axis->dotProduct(asteroids[i]->vertices[l]); min1 = (test < min1) ? test : min1; max1 = (test > max1) ? test : max1; } min2 = max2 = axis->dotProduct(bullVerts[0]); for (unsigned int l = 1; l < bullVerts.size(); l++) { float test = axis->dotProduct(bullVerts[l]); min2 = (test < min2) ? test : min2; max2 = (test > max2) ? test : max2; } delete axis; axis = NULL; if ( (min1 - max2) > 0 || (min2 - max1) > 0 ) { realCollision = false; break; } else { realCollision = true; } } } if (realCollision) { player.bullets.remove(j); int numAsteroids; float newDegree; srand ( j + asteroidBox.x ); if ( asteroids[i]->degree == 90.0f ) { if ( rand() % 2 == 1 ) { numAsteroids = 3; newDegree = 30.0f; } else { numAsteroids = 2; newDegree = 45.0f; } for ( int k = 0; k < numAsteroids; k++) asteroids.insert(new Asteroid(asteroidBox.x + (10 * k), asteroidBox.y + (10 * k), newDegree)); } delete asteroids[i]; asteroids.remove(i); } while (bullVerts.size()) { delete bullVerts[0]; bullVerts.remove(0); } while (bullEdges.size()) { delete bullEdges[0]; bullEdges.remove(0); } while (asteroidEdges.size()) { delete asteroidEdges[0]; asteroidEdges.remove(0); } } } } } } bullEdges is a list of vectors of the edges of a bullet, asteroidEdges is similar, and bullVerts and asteroids[i].vertices are, obviously, lists of vectors of each vertex for the respective bullet or asteroid. Honestly, I'm not looking for code corrections, just a fresh set of eyes.

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  • CSS rule ignored in IE8 Quirks Mode.

    - by ProfK
    I have a ul/li based side menu, styled with two CSS rules, the following of them is ignored by IE8 Quirks mode, and I assume IE6: ul { padding-left: 15px; } I can reproduce the problem in FF by removing this rule completely. I have also tried using jQuery to apply the rule, with no change in IE8: $("ul.menu-class").find("ul").css("padding-left", 15); Is this a box model issue, and, how can I reduce the UL 'padding' in IE Quirks Mode?

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  • Jquery Cluetip - clean up between ajax loaded content

    - by ted776
    Hi, I'm using the jquery cluetip plugin and trying to figure out how to remove any open cluetip dialogs once i load new content via ajax. I am either stuck with the dialog boxes still showing on top of new content, or the ways i've tried to fix this actually remove all future cluetip dialogs from showing at all. Here's my code, thanks for any help. On dom ready i instantiate cluetip as below. //activate cluetip $('a.jTip').cluetip({ attribute: 'href', cluetipClass: 'jtip', arrows: true, activation: 'click', ajaxCache: false, dropShadow: true, sticky: true, mouseOutClose: false, closePosition: 'title' }); When i'm loading new content, I have the following code. The problem i have is that $('.cluetip-jtip').empty() prevents dialog boxes from opening on any of the new content loaded in, while the destroy function doesn't remove any open dialog boxes, but just destroys the current object. $('.next a').live("click", function(){ var toLoad = $(this).attr('href'); var $data = $('#main_body #content'); $.validationEngine.closePrompt('body'); //close any validation messages $data.fadeOut('fast', function(){ $data.load(toLoad, function(){ $data.animate({ opacity: 'show' }, 'fast'); //reinitialise datepicker and toolip $(".date").date_input(); //JT_init(); $('.hidden').hide(); //scroll to top of form $("html,body").animate({ "scrollTop": $('#content').offset().top + "px" }); //remove existing instance //$('a.jTip').cluetip('destroy'); //remove any opened popups $('.cluetip-jtip').empty(); //reinitialise cluetip $('a.jTip').cluetip({ attribute: 'href', cluetipClass: 'jtip', arrows: true, activation: 'click', ajaxCache: false, dropShadow: true, sticky: true, mouseOutClose: false, closePosition: 'title' }); }); }); return false; });

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