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David Corking

Object Vs Model - 0 views

shared by David Corking on 11 Jun 09 - Cached
  • Data Hiding simply doesn't make sense with regards to a reflective system where the data must regularly be updated by observers of reality (i.e. by one or more actors) and where the data inherently comes from the outside. This is, perhaps, one source of ObjectRelationalImpedenceMismatch?. Relational is designed for modeling data that came from an outside world whilst object-oriented is designed to... well... create and manipulate objects
    • David Corking
       
      why data hiding makes no sense in some programs
  • You can make them work together until you try to add virtualization - abstract objects for which the associated data isn't known.
Fabien Cadet

Programming languages usage ::TIOBE Index - 9 views

  •  
    The TIOBE Programming Community index gives an indication of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. The popular search engines Google, MSN, Yahoo!, Wikipedia and YouTube are used to calculate the ratings. Observe that the TIOBE index is not about the best programming language or the language in which most lines of code have been written. The index can be used to check whether your programming skills are still up to date or to make a strategic decision about what programming language should be adopted when starting to build a new software system.
vikramsjn

Shelves in Subversion | svn commit ./me - 0 views

  • The first thing to do is to create the shelf/branch. If you know your working copy is a little old, compared to the HEAD revision of your trunk or branch, then you can use the last revision you committed or updated to when creating the shelf. Otherwise, just use the HEAD revision:svn copy -r HEAD url://server/repos/project1/trunk url://server/repos/project1/branches/shelfThis command is creating the shelf directly in the repository, based on whatever URL and revision your working copy is associated with. In this example, I used trunk. The next step is to use the svn switch command to switch your working copy so that it is pointing at the shelf URL:svn switch url://server/repos/project1/branches/shelf
seth kutcher

Two Thumbs Up For Computer Assistance Services - 3 views

I am so happy for the computer assistance that Computer Assistance Online gave me. They provided me with precise and fast solutions to my computer problem. Their computer specialists really know wh...

computer assistance

started by seth kutcher on 06 Jun 11 no follow-up yet
shalali stokes

They Fix Slow Computers Fast - 1 views

I called Fix Slow Computer Online to help me fix slow computers. I own an internet cafe and I have noticed that my computers are running slow. That is why I right away sought out a solution to my p...

Development fix slow computer fast

started by shalali stokes on 11 Aug 11 no follow-up yet
Maria Babae

Fast and Reliable Computer Help and Support - 2 views

My hotel has been running within the family business for 122 years. From time to time we update our systems and units through computer help services offered online. There was a time in Febuary 2000...

computer support fast online

started by Maria Babae on 11 Aug 11 no follow-up yet
Fabien Cadet

Why LD_LIBRARY_PATH is bad, by David Barr (2001) - 2 views

  • This list is prepended to the existing list of compiled-in loader paths for a given executable, and any system default loader paths.
  • For security reasons, LD_LIBRARY_PATH is ignored at runtime for executables that have their setuid or setgid bit set. This severely limits the usefulness of LD_LIBRARY_PATH.
  • SunOS 4.x uses major and minor revision numbers. If you have a library “Xt”, then it's named something like “libXt.so.4.10” (Major version 4, minor 10). If you update the library (to correct a bug, for example), you would install libX11.so.4.11 and applications would automatically use the new version.
  • ...5 more annotations...
  • Linux, SunOS 5.x and most other SYSV variants use only major revision numbers. A library “Xt” is just named something like “libXt.so.4”.
  • Linux confuses things by generally using major/minor library file names, but always include a symlink that is the actual library path referenced. So, for example, a library “libXt.so.6” is actually a symlink to “libXt.so.6.0”.
  • The linker/loader actually looks for “libXt.so.6”.
  • run-time vs link-time paths
  • There's also LD_RUN_PATH which is an environment variable which acts to “ld” just like specifying -R.
Lee Johnson

Deploying node.js on Amazon EC2 | The Carbon Emitter - 0 views

  • sudo apt-get update
  • sudo apt-get upgrade -y
  • sudo apt-get install build-essential libssh-dev git-core -y
  • ...9 more annotations...
  • wget http://nodejs.org/dist/node-v0.4.11.tar.gz
  • tar zxf node-v0.4.11.tar.gz
  • cd node-v0.4.11
  • ./configure
  • sudo make install
  • curl http://npmjs.org/install.sh | sudo sh
  • source 'http://rubygems.org' gem 'capistrano' gem 'capistrano-ext' gem 'bluepill'
  • load 'deploy' if respond_to?(:namespace) # cap2 differentiator load 'config/deploy' # remove this line to skip loading any of the default tasks
  • set :stages, %w(acceptance production) require 'capistrano/ext/multistage' set :application, "node" set :user, "ubuntu" set :host, "ec2-127-0-0-1.compute-1.amazonaws.com" set :deploy_to, "/var/www/node" set :use_sudo, true set :scm, :git
Matteo Spreafico

Building Super-Scalable Web Systems with REST - 3 views

  • Standard fare for most dynamic data and the way most everybody would tell you to do it. Only thing is that it scales like a dog.
  • The thing is that holding all the weather of the entire globe in memory, well, takes a lot of memory. More than is reasonable. In which case, there’s a fairly decent chance that a given request can’t be served from the cache, resulting in a query to the database, an update to the cache, which bumps out something else, in short, not a very good hit rate.
  • If we were able to make our clients in London perform an HTTP GET on http://weather.myclient.com/UK/London then we could return headers in the HTTP response telling the intermediaries that they can cache the response for an hour, or however long we want.
  • ...1 more annotation...
  • Instead of getting hammered by millions of requests a day, the internet would shoulder easily 90% of that load making it much easier to scale. Thanks Al.
iupdateyou123

How to buy cheap domain | I Update You - 0 views

  •  
    A domain signifies your identity or address on the internet. A domain is a phrase including several components separated by dot. Each domain name includes a top level domain such as .NET, .COM or .ORG. Domain names ending in .COM were supposed for commercial, for profit organizations while names ending in .NET were for network infrastructure machines and those ending in .ORG were used for various usually non-profit organizations. It is easy to get a cheap domain that is equally reliable. You can choose for the cheapest domain registration if all your preferred names are available.
iupdateyou123

Email Marketing | I Update You - 0 views

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    Email marketing has become a vital tool for business ever since the introduction of the internet to the world. Email marketing helps to Send emails with the purpose of improving the relationship of abusiness owner with its current or previous customers and to encourage customer reliability and repeat business. Send emails with the objective of attaining new customers or compelling current customers to buy something instantly.
mreyman

Become Top React Native Developer With This List Of High-Quality Assets - 0 views

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    Do you want to use a single framework to build native applications for all mobile platforms? Then React Native is the way to go. To help you master it, we've prepared a selection of luscious content that will make you a more powerful React Native developer.
raushan-19

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raushan-19

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bakur1234

Web Development - 0 views

Designing or developing a website is the main objective for all industries, businesses and sole proprietors to keep their clients with new updates regarding their online business presence. Internet...

web develop design programming @public development tools

started by bakur1234 on 13 Sep 19 no follow-up yet
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