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Search found 50247 results on 2010 pages for 'base class'.

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• How to solve cyclic dependencies in a visitor pattern

  - by Benjamin Rogge

  When programming at work we now and then face a problem with visitors and module/project dependencies. Say you have a class A in a module X. And there are subclasses B and C in module Y. That means that module Y is dependent on module X. If we want to implement a visitor pattern to the class hierarchy, thus introducing an interface with the handle Operations and an abstract accept method in A, we get a dependency from module Y to module X, which we cannot allow for architectural reasons. What we do is, use a direct comparison of the types (i.e. instanceof, since we program in Java), which is not satisfying. My question(s) would be: Do you encounter this kind of problem in your daily work (or do we make poor architectural choices) and if so, how is your approach to solve this?

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• Should I extract specific functionality into a function and why?

  - by john smith optional

  I have a large method which does 3 tasks, each of them can be extracted into a separate function. If I'll make an additional functions for each of that tasks, will it make my code better or worse and why? Edit: Obviously, it'll make less lines of code in the main function, but there'll be additional function declarations, so my class will have additional methods, which I believe isn't good, because it'll make the class more complex. Edit2: Should I do that before I wrote all the code or should I leave it until everything is done and then extract functions?

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• CVE-2012-5195 Buffer Errors vulnerability in Perl

  - by Ritwik Ghoshal

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-5195 Buffer Errors vulnerability 7.5 Perl 5.8 Solaris 10 SPARC: 148561-06 X86: 148562-06 Solaris 11.1 11.1.11.4.0 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Octrees as data structure

  - by Christian Frantz

  In my cube world, I want to use octrees to represent my chunks of 20x20x20 cubes for frustum and occlusion culling. I understand how octrees work, I just dont know if I'm going about this the right way. My base octree class is taken from here: http://www.xnawiki.com/index.php/Octree What I'm wondering is how to apply occlusion culling using this class. Does it make sense to have one octree for each cube chunk? Or should I make the octree bigger? Since I'm using cubes, each cube should fit into a node without overlap so that won't be an issue

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• Identifying which pattern fits better.

  - by Daniel Grillo

  I'm developing a software to program a device. I have some commands like Reset, Read_Version, Read_memory, Write_memory, Erase_memory. Reset and Read_Version are fixed. They don't need parameters. Read_memory and Erase_memory need the same parameters that are Length and Address. Write_memory needs Lenght, Address and Data. For each command, I have the same steps in sequence, that are something like this sendCommand, waitForResponse, treatResponse. I'm having difficulty to identify which pattern should I use. Factory, Template Method, Strategy or other pattern. Edit I'll try to explain better taking in count the given comments and answers. I've already done this software and now I'm trying to refactoring it. I'm trying to use patterns, even if it is not necessary because I'm taking advantage of this little software to learn about some patterns. Despite I think that one (or more) pattern fits here and it could improve my code. When I want to read version of the software of my device, I don't have to assembly the command with parameters. It is fixed. So I have to send it. After wait for response. If there is a response, treat (or parse) it and returns. To read a portion of the memory (maximum of 256 bytes), I have to assembly the command using the parameters Len and Address. So I have to send it. After wait for response. If there is a response, treat (or parse) it and returns. To write a portion in the memory (maximum of 256 bytes), I have to assembly the command using the parameters Len, Address and Data. So I have to send it. After wait for response. If there is a response, treat (or parse) it and returns. I think that I could use Template Method because I have almost the same algorithm for all. But the problem is some commands are fixes, others have 2 or 3 parameters. I think that parameters should be passed on the constructor of the class. But each class will have a constructor overriding the abstract class constructor. Is this a problem for the template method? Should I use other pattern?

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• Going from .Net 2.0 to 4.5 [closed]

  - by Austin Henley

  For a lot of my projects I have been using an older code base and also just haven't learned the features from newer .Net/C# versions. It seems I am stuck back in the 2.0 days of the framework and language, so what should I do to make use of all latest features? It is worth pointing out this but rather than just what changes have been made, what small programs could I implement that would teach me a lot of the new features?

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• High Tech Product Companies: Benchmark Your Sales & Marketing Data Management

  - by user709269

  Aberdeen’s Q4 2010 Quarterly Business Review found that 74% of the Sales and Marketing organizations in High Tech product manufacturing have strategic CRM initiatives in 2011. Aberdeen Group is conducting a survey that will help high tech product companies such as yours determine the Best-in-Class procedures for capturing, managing, and disseminating business data. If your product company is planning on implementing a CRM solution or is simply evaluating the potential benefits, we would appreciate your feedback in this brief, 10-minute survey. You will be able to compare your experiences in leveraging customer information for sales and marketing compare with your peers, benchmark your performance, and see how you can achieve Best-in-Class results. Individual responses will be kept strictly confidential, and data will only be used in aggregate. In appreciation for sharing your time and thoughts with us, we will provide complimentary access for you to the full benchmark report as soon as it is published (a $399 value). Take the survey.

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• Naming convention: Final fields (not static)

  - by Zeeker

  Today I had a discussion with a co-worker about the naming of final fields in Java classes. In his opionion final fields should also be considered constants since their values won't change after the creation of the instance. This would lead to the following naming convention for final fields: public class Foo { private static final String BLA_BLA = "bla"; private final String BAR_BATZ; ... } In my opinion only static final fields should be considered constants while fields which are only final should follow the usual camelCase naming convention. public class Foo { private static final String BLA = "bla"; private final String barBatz; ... } Now I'm a bit uncertain since he is a far more experienced programmer than I am and I usually agree with his opinions and consider him a very good developer. Any input on this?

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• CVE-2012-1173 Numeric Errors vulnerability in LibTIFF

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-1173 Numeric Errors vulnerability 6.8 LibTIFF Solaris 10 Contact Support Solaris 11 11/11 SRU 8.5 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Subwoofer doesn't work on Dell Inspiron 17R after upgrade to 13.10

  - by Danil Lopatin

  After upgrading from 13.04 to 13.10 Dell's Inspirion 17R subwoofer stoped working. In Ubuntu 13.04 was workaround by adding in the file /etc/modprobe.d/alsa-base.conf next line: options snd-hda-intel model=ref This issue was discussed here: How to activate subwoofer in Inspiron 17r? After update previous workarounds don't help and I get no sound from any speaker in this case. Is there some other fix for the latest version?

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• Is Ruby on Rails' Active Record an example of Aspect-Oriented Programming?

  - by B Seven

  From Clean Code, about Cross-Cutting Concerns: Note that concerns like persistence tend to cut across the natural object boundaries of a domain. You want to persist all your objects using generally the same strategy, for example, using a particular DBMS... Is Active Record an example of aspect-oriented programming? In AOP, modular constructs called aspects specify which points in the system should have their behavior modified in some consistent way to support a particular concern. This specification is done using a succinct declarative or programmatic mechanism. If Active Record is an example of AOP, what is the "aspect"? Is it the class declaration that inherits from Active Record? class Foo < ActiveRecord::Base

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• Implementing Ads on any page in your Windows 8 XAML app–part 2

  - by nmarun

  In my previous article , you saw how you can start implementing ads on some of the page templates. In this one, we’ll see how we can add something called ‘interstitial ads’ – ads that appear as part of the content in your app. I have added a Grouped Items page to my project. My data model is set to show a few appliances. I have a BaseModel class and the ApplianceModel that inherits the BaseModel class has two properties to represent an appliance. The ProductHolder acts as a container for a list of...(read more)

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• CVE-2011-4339 Access Controls vulnerability in ipmitool

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2011-4339 Permissions, Privileges, and Access Controls vulnerability 3.6 ipmitool Solaris 10 SPARC: 119764-07 X86: 119765-07 Solaris 11 11/11 SRU 13.4 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• UDK : UTWeap_RocketLauncher gift CreateInventory: Any idea why this does not work properly?

  - by John Sloan

  I am giving the player an instanced class of UTWeap_RocketLauncher in an instance of UTGame. PlayerPawn.CreateInventory(class'FobikRocketLauncher',false); // Does not work PlayerPawn.CreateInventory(class'FobikLinkGun',false); // Works Even if I give the original class (eg. UTWeap_RocketLauncher) it does not actually show up. However if I do a "GiveWeapons" cheat, I get it just fine. It also works if I had code it into the map. - But UTWeap_LinkGun works fine either way. Any ideas? It shows the default ammo amount, and the icon on the HUD.

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• CVE-2012-3955 Denial of Service (DoS) vulnerability in ISC DHCP

  - by RitwikGhoshal

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-3955 Denial of Service (DoS) vulnerability 7.1 ISC DHCP Solaris 11 11/11 SRU 13.4 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Powerful Lessons in Data from the Presidential Election

  - by Christina McKeon

  Now that we’ve had a few days to recover from the U.S. presidential election, it’s a good time to take a step back from politics and look for the customer experience lessons that we can take away. The most powerful lesson is that when you know more about your base, you will have an advantage over your competition. That advantage will translate into you winning and your competition losing. Michael Scherer of TIME was given access to Obama’s data analysts two days before the election. His account is documented in Inside the Secret World of the Data Crunchers Who Helped Obama Win. What we learned from Scherer’s inside view is how well Obama’s team did in getting the right data, analyzing it, and acting on it. This data team recognized how critical it was to break down data silos within the campaign. As Scherer noted, they created “a single system that merged information from pollsters, fundraisers, field workers, consumer databases, and social-media and mobile contacts with the main Democratic voter files in the swing states.” The Obama analysis was so meticulous that they knew which celebrity and which type of celebrity event would help them maximize campaign contributions. With a single system, their data models became more precise. They determined which messages were more successful with specific demographic groups and that who made the calls mattered. Data analysis also led to many other changes in Obama’s campaign including a new ad buying strategy, using social media and applications to tap into supporters’ friends, and using new social news sites. While we did not have that same inside view into Romney’s campaign, much of the post-mortem coverage indicates that Romney’s team did not have the right analysis. As Peter Hamby of CNN wrote in Analysis: Why Romney Lost, “Romney officials had modeled an electorate that looked something like a mix of 2004 and 2008….” That historical data did not account for the changing demographics in the U.S. Does your organization approach data like the Obama or Romney team? Do you really know your base? How well can you predict what is going to happen in your business? If you haven’t already put together a strategy and plan to know more, this week’s civics lesson is a powerful reason to do it sooner rather than later. Your competitors are probably thinking the same thing that you are!

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• CVE-2011-3375 Information Disclosure vulnerability in Apache Tomcat

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2011-3375 Information Exposure vulnerability 5.0 Apache Tomcat Solaris 11 11/11 SRU 04 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Firefox Metro se concrétise, Mozilla publie les images d'un premier prototype pour Windows 8

  Firefox Metro se concrétise Mozilla publie les images d'un premier prototype pour Windows 8 Mise à jour du 03/04/2012 Le port de Firefox sur l'environnement Metro de Windows 8 se confirme. Quelques jours seulement après la confirmation des plans de développement d'une version de Firefox pour Windows 8, la fondation Mozilla livre déjà les premiers résultats de ses travaux. L'organisme vient de publier les images d'un prototype basé sur le code source de Fennec (Firefox pour mobile) et le langage d'interface utilisateur XUL. [IMG]http://rdonfack.developpez.com/images/metro-startf.jpg[/IMG...

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• Creating a DrawableGameComponent

  - by Christian Frantz

  If I'm going to draw cubes effectively, I need to get rid of the numerous amounts of draw calls I have and what has been suggested is that I create a "mesh" of my cubes. I already have them being stored in a single vertex buffer, but the issue lies in my draw method where I am still looping through every cube in order to draw them. I thought this was necessary as each cube will have a set position, but it lowers the frame rate incredibly. What's the easiest way to go about this? I have a class CubeChunk that inherits Microsoft.Stuff.DrawableGameComponent, but I don't know what comes next. I suppose I could just use the chunk of cubes created in my cube class, but that would just keep me going in circles and drawing each cube individually. The goal here is to create a draw method that draws my chunk as a whole, and to not draw individual cubes as I've been doing.

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• Multiple Vulnerabilities in libpng

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2010-0205 Resource Management Errors vulnerability 7.8 libpng Solaris 8 SPARC: 114816-04 X86: 114817-04 Solaris 9 SPARC: 139382-03 X86: 139383-03 Solaris 10 SPARC: 137080-05 X86: 137081-05 Solaris 11 Express snv_151a CVE-2010-1205 Buffer Overflow vulnerability 7.5 CVE-2010-2249 Resource Management Errors vulnerability 5.0 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Setting a leader from a sprite array

  - by Craig

  I'm looking to set a leader from an array of sprites, I keep on getting a NullReferenceException was unhandled error from within my main game class when calling the UpdateMouse Method. What have I dont wrong here? class MouseSprite { Random random = new Random(); private MouseSprite leader; public void UpdateBoundaryBox() { mouseBounds.X = (int)mousePosition.X - mouseTexture.Width / 2; mouseBounds.Y = (int)mousePosition.Y - mouseTexture.Height / 2; } public void UpdateMouse(Vector2 position, MouseSprite [] mice, int numberMice, int index) { Vector2 catPosition = position; int enemies = numberMice; this.alive = true; mice[random.Next(0, mice.Length)] = leader;

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• Alter Index All Tables

  - by Derek Dieter

  This script comes in handy when needing to alter all indexes in a database and rebuild them. This will only work on SQL Server 2005+. It utilizes the ALL keyword in the Alter index statement to rebuild all the indexes for a particular table. This script retrieves all base tables and stores [...]

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• InputLayout handling

  - by Kikaimaru

  Where are you supposed to store InputLayout? Suppose i have some basic structure like. class Mesh { List<MeshPart> MeshParts } class MeshPart { Effect Effect; VertexBufferBinding VertexBuffer; ... } Where should I store input layout? It's a connection between vertex buffer and specific pass, i can live with just 1 pass but I still have diffferent techniques so i need at least an array with some connection to effecttechniques, but I would appriciate something not crazy like dictionary. I could also create wrapper for Effect and EffectTechnique, but there must be some normal solution.

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• CVE-2011-4028 Information Disclosure vulnerability in X.org

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2011-4028 File Existence Disclosure vulnerability 1.2 X.Org Solaris 10 SPARC: 125719-42 X86: 125720-52 Solaris 11 Contact Support This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Testing the Effectiveness of Your Web Marketing Strategies

  Web marketing is a great option to choose when seeking to establish an online customer base for your product. Yet there is more than just advertising, marketing and generating SEO content for your site as all these strategies could fail to generate sales for your product. Given that e-commerce is a dynamic, ever changing business platform, it is important that an online business owner keeps testing the effectiveness of their online marketing strategies.

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