Search Results

Search found 3061 results on 123 pages for 'interfaces'.

Page 18/123 | < Previous Page | 14 15 16 17 18 19 20 21 22 23 24 25  | Next Page >

• Qt Quick : des interfaces déclaratives hors norme ? Pourquoi ne sont-elles pas encore répandues ?

  Il y a peu, Nokia lançait Qt Quick, un nouveau module de Qt permettant de décrire des interfaces graphiques, un paradigme alors présenté comme assez nouveau. Or, une simple recherche à l'aide de Google montre bien que ces technologies ne sont pas récentes du tout, on trouve par exemple des traces de K, un langage presque ésotérique tellement il est peu connu du grand nombre actuellement, dans les années 90. Qu'est-ce qui a changé depuis lors ? Aussi, on peut remarquer que d'autres technologies phares dans le développement applicatif telles que .NET ou Java en disposent depuis belle lurette. On peut notamment citer XAML (arrivé avec le .NET Framework 3.0) du côté .NET ou Swul pour Java. Qu'ont-ils donc de différent ? Peut-on les comparer ? Ils tentent tous d'atteindre un cer...

  Read the article

• Qt Quick : des interfaces déclaratives hors normes ? Pourquoi ne sont-elles pas encore répandues ?

  Il y a peu, Nokia lançait Qt Quick, un nouveau module de Qt permettant de décrire des interfaces graphiques, un paradigme alors présenté comme assez nouveau. Or, une simple recherche à l'aide de Google montre bien que ces technologies ne sont pas récentes du tout, on trouve par exemple des traces de K, un langage presque ésotérique tellement il est peu connu du grand nombre actuellement, dans les années 90. Qu'est-ce qui a changé depuis lors ? Aussi, on peut remarquer que d'autres technologies phares dans le développement applicatif telles que .NET ou Java en disposent depuis belle lurette. On peut notamment citer XAML (arrivé avec le .NET Framework 3.0) du côté .NET ou Swul pour Java. Qu'ont-ils donc de différent ? Peut-on les comparer ? Ils tentent tous d'atteindre un cer...

  Read the article

• How to define default gateway with multiple DHCP interfaces?

  - by DrumEater

  How does ifconfig determine which network interface to use as the default when DHCP assigns a default route for each NIC? It seems like it's in a race-condition and I need to have a more reliable solution. Is there a setting in /etc/network/interfaces that could define the preferred gateway? I read about "metric" but that did not seem to function. 10.04 LTS Server with two NICs on a managed network. IP addresses are assigned via DHCP which I do not manage. eth0 is assigned a private NAT address; eth1 is assigned a public IP.

  Read the article

• Is there a name for the Builder Pattern where the Builder is implemented via interfaces so certain parameters are required?

  - by Zipper

  So we implemented the builder pattern for most of our domain to help in understandability of what actually being passed to a constructor, and for the normal advantages that a builder gives. The one twist was that we exposed the builder through interfaces so we could chain required functions and unrequired functions to make sure that the correct parameters were passed. I was curious if there was an existing pattern like this. Example below: public class Foo { private int someThing; private int someThing2; private DateTime someThing3; private Foo(Builder builder) { this.someThing = builder.someThing; this.someThing2 = builder.someThing2; this.someThing3 = builder.someThing3; } public static RequiredSomething getBuilder() { return new Builder(); } public interface RequiredSomething { public RequiredDateTime withSomething (int value); } public interface RequiredDateTime { public OptionalParamters withDateTime (DateTime value); } public interface OptionalParamters { public OptionalParamters withSeomthing2 (int value); public Foo Build ();} public static class Builder implements RequiredSomething, RequiredDateTime, OptionalParamters { private int someThing; private int someThing2; private DateTime someThing3; public RequiredDateTime withSomething (int value) {someThing = value; return this;} public OptionalParamters withDateTime (int value) {someThing = value; return this;} public OptionalParamters withSeomthing2 (int value) {someThing = value; return this;} public Foo build(){return new Foo(this);} } } Example of how it's called: Foo foo = Foo.getBuilder().withSomething(1).withDateTime(DateTime.now()).build(); Foo foo2 = Foo.getBuilder().withSomething(1).withDateTime(DateTime.now()).withSomething2(3).build();

  Read the article

• Is there a case for parameterising using Abstract classes rather than Interfaces?

  - by Chris

  I'm currently developing a component based API that is heavily stateful. The top level components implement around a dozen interfaces each. The stock top-level components therefore sit ontop of a stack of Abstract implementations which in turn contain multiple mixin implementations and implement multiple mixin interfaces. So far, so good (I hope). The problem is that the base functionality is extremely complex to implement (1,000s of lines in 5 layers of base classes) and therefore I do not wish for component writers to implement the interfaces themselves but rather to extend my base classes (where all the boiler plate code is already written). If the API therefore accepts interfaces rather than references to the Abstract implementation that I wish for component writers to extends, then I have a risk that the implementer will not perform the validation that is both required and assumed by other areas of code. Therefore, my question is, is it sometimes valid to paramerise API methods using an abstract implementation reference rather than a reference to the interface(s) that it implements? Do you have an example of a well-designed API that uses this technique or am I trying to talk myself into bad-practice?

  Read the article

• Within a Visual Studio 2008 Add-In, how can I tell which interfaces a class' property implements?

  - by Tim Stewart

  In a Visual Studio Add-In, I'm enumerating over the members of a class in the current source file. When I encounter a property (e.g. CodeElement.Kind == vsCMElement.vsCMElementProperty) I cast that CodeElement to a CodeProperty and I can see the property's name and type. What I'm having a problem with is getting a list of the property's implemented interfaces. I'm wondering if this is because the implemented interfaces might be in assemblies that Visual Studio doesn't "know" about. Is there a way to get the list of interfaces that a property implements? Thanks.

  Read the article

• Can I compose a WCF callback contract out of multiple interfaces?

  - by mafutrct

  Followup question to http://stackoverflow.com/questions/2502930/how-can-i-compose-a-wcf-contract-out-of-multiple-interfaces. I tried to merge multiple callback interfaces in a single interface. This yields an InvalidOperationException claiming that the final interface contains no operations. Technically, this is true, however, the inherited interfaces do contain operations. How can I fix this? Or is this a limitation of WCF? Edit: interface A { [OperationContract]void X(); } interface B { [OperationContract]void Y(); } interface C: A, B {} // this is the public callback contract

  Read the article

• Use annotation to specify which classes/interfaces should be generate javadoc?

  - by ipkiss

  Hi, I have a java program and want to generate javadoc for classes/interfaces. However, I just want to generate javadoc for a certain classes and interfaces. I just want to know if there is any way that I can add an annotation at the beginning of each class/interface to indicate that this class/interface should not be generated javadoc (something like @no-generate-javadoc) Does anyone have ideas, please? Thanks

  Read the article

• Is it bad practice to 'mix class and interfaces in the same package'?

  - by DerMike

  Hello, I just found something that I never heard of before and I do not agree with (by now). In an (upvoted and not further commented) answer I read "why to mix class and interfaces in the same package" So I wonder, if there are reasons to separate Interfaces and implementations in Java. I know that we are not obliged to have all implementations in the package of the interface, but is it (sometimes) wise to have none there? Regards Mike [;-)

  Read the article

• Multiple IPs on firewall, are these virtual interfaces or what?

  - by Jakobud

  We have 5 static IP addresses from our ISP: XXX.XXX.XXX.180 XXX.XXX.XXX.181 XXX.XXX.XXX.182 XXX.XXX.XXX.183 XXX.XXX.XXX.184 On our firewall box, the NIC that is connected to our cable modem, appears to have all 5 IP addresses set on it. A previous IT guy set this thing up, and I'm not sure exactly what he did. Are these virtual interfaces on this NIC or what? Here is my ip addr output for that NIC: rwd0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff inet XXX.XXX.XXX.180/24 brd XXX.XXX.XXX.186 scope global rwd0 inet XXX.XXX.XXX.181/29 brd XXX.XXX.XXX.186 scope global rwd0:FWB9 inet XXX.XXX.XXX.182/29 brd XXX.XXX.XXX.186 scope global secondary rwd0:FWB10 inet XXX.XXX.XXX.183/29 brd XXX.XXX.XXX.186 scope global secondary rwd0:FWB11 inet XXX.XXX.XXX.184/29 brd XXX.XXX.XXX.186 scope global secondary rwd0:FWB12 inet6 fe80::250:8bff:fe61:5734/64 scope link valid_lft forever preferred_lft forever I'm a bit new to firewalls and networking so I'm just trying to figure out what he had going on here. I know he used Firewall Builder to configure the iptables rules, maybe that has something to do with the "FWB" I see in those names? So my questions are: What is going on here? Virtual Interfaces? Or something else? If we want to put in a second firewall in parallel with this firewall but we only want it to handle traffic to XXX.XXX.XXX.182, how do we get rid of the static XXX.XXX.XXX.182 address on this existing firewall box?

  Read the article

• Are there compact external USB audio interfaces which are better than a on-board sound?

  - by rumtscho

  I am asking this for a friend. He loves his voice recognition software and dictates a lot of text using a headset. Now he has a new laptop, which only has a combined mic/headphones output, and wanted to buy an adapter. I told him to get an external USB sound interface instead, as the better sound quality will probably increase the hit rate of the voice recognition. He agreed, but when he saw a picture of the SoundBlaster X-Fi, he said that it is way too big, because he wants to carry the thing everywhere. He'd rather have one of these small things which are the size of a flash memory stick, with only one mic and one phones output, period. Now I am not sure whether these mini interfaces would produce a sound better than onboard sound. They all seem to come not from established audio interface manufacturers, but from electronic accessories manufacturers like Speedlink, or just noname brands. Is there a compact audio interface with good A/D quality (it is OK if the price is comparable to that of the bigger interfaces, even if there is no additional functionality like Chinch in-/output etc)?. And if there isn't, will the noname soundcardsticks offer any advantage over a simple adaptor for the onboard sound?

  Read the article

• It is okay to set MASQUERADE at 2 network interfaces in a Linux server?

  - by Patrick L

  There is a Linux server with 3 network interfaces, eth0, eth1, eth2. IP forwarding has been turn on in this server. eth0 is connected to 10.0.1.0/24. Its IP is 10.0.1.1. eth1 is connected to 172.16.1.0/24. Its IP is 172.16.1.1. Server A can ping router C at 172.16.1.2. eth2 is connected to 192.168.1.0/24. Its IP is 192.168.1.1. Server A can ping server B at 192.168.1.2. Router C is able to route to 172.16.2.0/24 and 172.16.3.0/24. [10.0.1.0/24] | 172.16.2.0/24------| | [C]------172.16.1.0/24------[A]------192.168.1.0/24------[B] 172.16.3.0/24------| We have set MASQUERADE at eth0. When server B (192.168.1.2) connect to 10.0.1.0/24, IP MASQUERADE will happen at eth0. Can we set MASQUERADE at eth1? Is it okay to set MASQUERADE at more than 1 network interfaces in Linux?

  Read the article

• netmask: command not found

  - by Ian R.

  I purchased a new server with a few ip's so I modified the /etc/network/interfaces file recently so that my ip's can go live. While editing that file I created a backup and deleted the original file. I recreated the interfaces file using the touch command and gave +x permissions but now, when trying to restart the interface (/etc/network/interfaces restart) I get all sorts of errors: /etc/network/interfaces: line 10: iface: command not found /etc/network/interfaces: line 11: address: command not found /etc/network/interfaces: line 12: netmask: command not found /etc/network/interfaces: line 13: auto: command not found Can any1 point what I forgot to do? Thanks.

  Read the article

• Mise à jour du cours vidéo Python pour débutants par Pythonnerie, trois nouvelles vidéos sur les interfaces graphiques

  voici un tutoriel, destiné à des débutants en informatique, utilise la vidéo pour aider à visualiser les concepts. Cours vidéo Python pour débutants Ce tutoriel est un travail en cours, qui sera (doucement) enrichi et complété au fil du temps. Bien entendu, il n'a aucune prétention à remplacer la documentation de référence, qu'il espère simplement rendre indirectement plus accessible. Mais son auteur espère avoir confirmé le goût de l'informatique chez ceux qui l'avaient déjà et montré aux autres que la programmation n'est pas forcément rébarbative ni mystérieuse....

  Read the article

• PySide 1.0.0 beta 2, le support complet des interfaces déclaratives arrive dans ce bindind LGPL Python de Qt

  Voici donc sortie la deuxième beta de PySide, le binding Python de Qt initié par Nokia, dont la principale différence avec le binding historique, PyQt, réside dans la licence : PySide est disponible sous LGPL, une licence moins restrictive que la GPL employée par PyQt. Ainsi, un binding Python de Qt peut être utilisé pour des développements propriétaires sans obligation de payer une licence commerciale. La première version beta de PySide (la bien dénommée beta 1) apportait un grand changement par rapport aux versions précédents (0.4.2 et avant) : un changement dans l'ABI (Application Binary Interface), ce qui, pour rester en dehors des détails techniques, obligeait à recompiler toute application se basant sur PySide (notamment le module Python). Cependant, ainsi, le projet ...

  Read the article

• When to decide to introduce interfaces (pure abstract base classes) in C++?

  - by Honza Brabec

  Assume that you are developing a functionality and are 90% sure that the implementation class will stay alone. If I was in this position in Java I would probably not use the interface right now to keep the things simple. In Java it is easy to refactor the code and extract the interface later. In C++ the refactoring is not always so easy. It may require replacing values with smart pointers (because of the introduction of polymorphism) and other non-trivial tasks. On the other hand I don't much like the idea of introducing virtual calls when I am 90% sure they won't be needed. After all speed is one of the reasons to prefer C++ over simpler languages.

  Read the article

• Building Interactive User Interfaces with Microsoft ASP. ...

  The ASP.NET AJAX UpdatePanel provides a quick and easy way to implement a snappier, AJAX-based user interface in an ASP.NET WebForm. In a nutshell, UpdatePanels allow page developers to refresh selected parts of the page (instead of refreshing the entire page). Typically, an UpdatePanel contains user interface elements that would normally trigger a full page postback - controls like Buttons or DropDownLists that have their <code>AutoPostBack</code> property set to True. Such controls, when placed inside an UpdatePanel, cause a partial page postback to occur. On a partial page postback only the contents of the UpdatePanel are refreshed, avoiding the "flash" of having the entire page reloaded. (For a more in-depth look at the UpdatePanel control, refer back to the

  Read the article

• POLL: How do you build your interfaces in xcode for iphone/coco-touch applications?

  - by LolaRun

  Hi all, It's been 2 months i'm using xcode and building iphone apps, and i'm finding it really hard to grasp the good design for the applications. I always face problems like you can't put your tabbarcontroller in another custom viewcontroller sort of a thing? or other problems... That 'sometimes' - of course - would work if you did the creation of the views/viewcontrollers programmatically. so I don't know if i should start writing the creation of my objects or use interface builder. This is why i'm asking this poll question, to see what's the most accepted way among other developers. I'm not going to answer my question, so the votes would not increase my reputation and risk my poll being closed soon. I prefer that the first two readers of this question should answer by 'using IB' and the second one 'programmatically' and the rest would vote up or down for these two answers. And don't vote my question either, i just need to know, and maybe someone else wants to know. so the longer this question lives the better. and gaining nothing from it concerning reputation would help that cause. thank you all for your cooperation. and go ahead and answer Peace

  Read the article

• What's the term describing this system for generating user interfaces?

  - by mjfgates

  So, there's this idea, which you already know: Define the layout of your UI by creating a tree of panels. The leaf nodes on the tree are what we used to call 'controls' way back in the day-- the things that the user interacts with, radio buttons and listboxes and such. The internal nodes are mostly concerned with layout; this kind of panel stacks its child panels vertically, that kind puts its children into a grid, etc. It's COMMON. Most of the UI-generating systems I've seen in the past twenty years are implementations of this, and the ones that aren't borrow from it. What's the word for this idea?

  Read the article

• using curl command to download file in parts from different interfaces and to run the commands simultaneously from a script

  - by jsjain007

  i wanted to download a file using curl command simultaneously in different parts using ip aliasing(virtual Ethernet ports) so what i did was pasted the commands in a text file and run but the problem as obvious since it is in a file the commands will be executed one by one so is there a way to run all those commands simultaneously. here is the command curl --interface eth0:0 --range 0,38010880 http://wdl.cache.ijinshan.com/wps/download/Linux/unstable/kingsoft-office_9.1.0.4244~a12p3_i386.deb -o kinsoft-office.part1 curl --interface eth0:1 --range 38010880 ,- http://wdl.cache.ijinshan.com/wps/download/Linux/unstable/kingsoft-office_9.1.0.4244~a12p3_i386.deb -o kinsoft-office.part2 cat kinsoft-office.part*>kinsoft-office can anyone help me to run these above 2 commands simultaneously from the script so as to increase download speed

  Read the article

• Is there a touch-friendly casino gambling (poker, roulette, slot machine) application that interfaces with coin acceptors

  - by Pitto

  Hello everybody... Does anyone have experience with gambling games (roulette, poker and so on) on Ubuntu? I would like to setup a touchscreen kiosk in my home with Ubuntu... Anything that works with coin and cash acceptors, reports payouts, lets the administrator set payout rates and so on Any experiences/hints? I am interested in full statistics / pay tweakings / cash flow analysis... Thanks a lot!

  Read the article

• Architecting persistence (and other internal systems). Interfaces, composition, pure inheritance or centralization?

  - by Vandell

  Suppose that you need to implement persistence, I think that you're generally limited to four options (correct me if I'm wrong, please) Each persistant class: Should implement an interface (IPersistent) Contains a 'persist-me' object that is a specialized object (or class) that's made only to be used the class that contains it. Inherit from Persistent (a base class) Or you can create a gigantic class (or package) called Database and make your persistence logic there. What are the advantages and problems that can come from each of one? In a small (5kloc) and algorithmically (or organisationally) simple app what is probably the best option?

  Read the article

• Do you prefer building your interfaces in IB or programmatically? and why?

  - by LolaRun

  I've been using Xcode and building iPhone apps for two months, but I'm finding it really hard to grasp good application design. I always face problems—like you can't put your tabbarcontroller in another custom viewcontroller, for example—that 'sometimes', of course, would work if you did the creation of the views/viewcontrollers programmatically. So I don't know if I should start writing the creation of my objects or use Interface Builder. What are your experiences?

  Read the article

• project with 2 types of interfaces performing different jobs, should they use the same BLL and DAL?

  - by user2080257

  i am working on a project that has two interface (web and desktop), they are not performing the same tasks but they use the same BLL and DAL, the web part using 100% of the BLL and DAL, while the desktop only needs to know about 20% of the BLL and DAL. do you think it is a good idea to let the desktop use the same BLL and DAL as the web, which consequently will lead to ditributing thos BLL and DAL with the desktop application? or you think i'd better create new BLL and DAL projects just to serve the desktop app? but in this case i will fall in the trap of maintaining two copies of the same code!

  Read the article

• Chromium et Qt rassemblés dans QtWebEngine, un prototype intègre le navigateur open source dans des interfaces Qt Quick

  Un certain temps après le port de Firefox sur Qt en lieu et place de GTK+, c'est au tour de Chromium, la version open source du navigateur Web de Google, d'être le sujet d'expérimentations. Ce projet ne se compose pas que d'un moteur de rendu, il s'agit d'une implémentation complète d'une plateforme Web, de la pile de protocoles réseau au framework multimédia, le tout disponible sur un grand nombre de plateformes (tout comme Qt). L'objectif récemment poursuivi par des employés de Digia était de laisser des développeurs Qt utiliser des briques de l'environnement Chromium, au sein même de Qt Quick 2 et des widgets. Il s'agi...

  Read the article

< Previous Page | 14 15 16 17 18 19 20 21 22 23 24 25  | Next Page >