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by: Andy Read |
last post by:
Hello all,
I have the requirement to produce source code that produces an object
hierarchy.
Example:
Root
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Folder 1
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by: Paolino |
last post by:
Lately I was needing to use multiple inheritance to split behaviour of a
class and modularize it.
But the problem raises when the need is to add operations to a method
already present in one of them from another.
I think the technical solution is the use of 'super'.
Then I tried to write a decorator for automatize the 'super' call,but I
failed.
Next solution is implementing the observer pattern on methods call.
I'm pretty sure there...
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by: Michael Schneider |
last post by:
Hello All,
I am comming back to python after being away for several years.
I would like to use weak refs in an observer pattern implementation.
The problme that I have seems to be that weakrefs can't manage functions.
------------------- from docs:
http://www.python.org/doc/current/lib/module-weakref.html
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by: decrypted |
last post by:
Since I couldn't find a OO design/architext forum, I thought I would post
here...
I have a win app with forms management. forms are grouped by category
(pertains to company, pertains to project. etc). This is represented, for
example, by a company window containing additional windows such as company
information, document history, yada yada. I am using the Observer/Observable
pattern to refresh all the forms in a group when another form...
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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: Gianni Mariani |
last post by:
Two issues here:
a) What is the accepted definition of "observer pattern". While I can't
point to anything specific, I do remember having issues with
inconsistency in the definition.
b) Generic observer design in C++. I have been pushing the Austria
"Twin" interface for a while and more recently the multi threaded
version of it "TwinMT" (see the 6129 alpha on sourceforge)
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by: Mohamed Mansour |
last post by:
Hello,
What is the purpose of implementing the Observer Pattern if we can trigger
an event easily?
For example (from books),
You have a "Forecaster" which notifies "Observable" when a prediction is
ready, then there is a "WeatherViewer" which calls methods from the
"Observer Interface".
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by: Alan Isaac |
last post by:
I have two questions about the "observer pattern" in Python.
This is question #1. (I'll put the other is a separate post.)
Here is a standard example of the observer pattern in Python:
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by: Alan Isaac |
last post by:
I have two questions about the "observer pattern" in Python.
This is question #2. (I'll put the other is a separate post.)
Consider this standard example of the observer pattern in Python:
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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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: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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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