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by: Omer van Kloeten |
last post by:
The Top Level Design:
The class Base is a factory class with a twist. It uses the Assembly/Type
classes to extract all types that inherit from it and add them to the list
of types that inherit from it. During run time, using a static method, the
class creates an instance of the derived class using the Activator class and
returns it. This design pattern is very similar to the design pattern
applied by the Assembly class.
The twist is...
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by: FluffyCat |
last post by:
In Febraury - April of 2002 I put together in Java examples of all 23
of the classic "Gang Of Four" design patterns for my website. Partly
I wanted to get a better understanding of those patterns. They are
still online at
http://www.fluffycat.com/java/patterns.html
Since September 2003 I've mainly been using PHP, and now that PHP 5 is
becoming more available I am going to try the same thing I did in Java
with PHP.
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by: Takayasu Kenduma |
last post by:
hi everybody.
i am quite new about design patterns and i would like improve my
experience in c# applications design. so i choose a common problem as
a draft to talk about in the group to find the right approach and the
different point of views of different programmers.
one common problem is a tree structure where a node is a son of
another one and nodes can be of different types.
i can think about some tables in a database (like access or...
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by: FluffyCat |
last post by:
New on November 28, 2005 for www.FluffyCat.com PHP 5 Design Pattern
Examples - the Visitor Pattern.
In the Visitor pattern, one class calls a function in another class
and passes an instance of itself. The called class has special
functions for each class that can call it.
With the visitor pattern, the calling class can have new operations
added without being changed itself.
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by: FluffyCat |
last post by:
New on November 29, 2005 for www.FluffyCat.com PHP 5 Design Pattern
Examples - the Command Pattern.
Since you all enjoyed the Visitor Pattern so much yesterday, today I
have the Command Pattern for you. This one is pretty straight
forward. In the Command Pattern an object encapsulates everything
needed to execute a method in another object.
http://www.fluffycat.com/SDCMSv2/PHP-Design-Patterns-Command/
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by: pitachu |
last post by:
Hi,
I'm not an expect in .NET, so would anyone know an answer a design
pattern for the following?
There are many customers that require minor customizations to the
program I will be developing. I would like to reuse the majority of the
functionality of this program since each customer is only requiring
certain changes to this program.
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by: sailor.gu |
last post by:
Hi all guys,
As an embeded programmer with five year C experience,
I did read many great books related with design, coding,
test,debug,algorithms, compiler, design, os, pm and others.
I always dream to achieve a refined and reusable design and
implementation.
I am very interested with code reuse.
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by: Mike |
last post by:
Hello NG,
i am just learning various Design Patterns and now i am not sure, if
this design is correct (Builder) or if i should use an other pattern.
I have various classes (here ChildA and ChildB) derived from class Base.
Now i want to create an object, but i don't want to know which class to
instantiate.
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by: Krivenok Dmitry |
last post by:
Hello All!
I am trying to implement my own Design Patterns Library.
I have read the following documentation about Observer Pattern:
1) Design Patterns by GoF
Classic description of Observer. Also describes implementation
via ChangeManager (Mediator + Singleton)
2) Pattern hatching by John Vlissides
Describes Observer's implementation via Visitor Design Pattern.
3) Design Patterns Explained by Alan Shalloway and James Trott
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by: FluffyCat |
last post by:
Last month I continued my series of design patterns examples using PHP
5 with the Observer Pattern and the Prototype Pattern. Here now is my
16th example, the Adapter pattern.
http://www.fluffycat.com/PHP-Design-Patterns/Adapter/
In the Adapter Pattern we adapt a class we have to provide methods
another class needs, without changing the original class.
If you work with a lot of classes that you can not change, then this
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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