Example: class Class1: def __init__(self): self.x = Class2('Woo!') class Class2: def __init__(self, word): print word meow = Class1() How do I derive the class name that created the self.x instance? In other words, if I was given the instance self.x, how do I get the name 'Class1'? Using self.x.__class__.__na...
Hi, I have two classes in a PHP application, B extending A for example. Class A has a function which returns some of its other properties in the form of an array of SQL insert queries eg Class A { $property_a; $property_b; $property_c; $property_d; function queries() { $queries = array(); $queries[] = "INSERT INTO xxx VALUES " . $this-...
i just noticed the guard method/class mentioned in this question and i don't really get the concept from the answers. And alas, Jon Skeet's link to an MS site never loaded. A few quick Google searches seemed to yield only products, not software engineering concepts. Any explanation and/or samples would be appreciated. (Especially from t...
Hello, my Python class has some variables that require work to calculate the first time they are called. Subsequent calls should just return the precomputed value. I don't want to waste time doing this work unless they are actually needed by the user. So is there a clean Pythonic way to implement this use case? My initial thought was ...
Hi, I've been trying to write an error handling class that I can use on sites, that will email me in the event of an error. Problem is, when I profile the application, it's choking on the error_log function. Here's my code (omitting the class: class ErrorHandler { private static $instance; private static $mail; private function __clone(...
How will I know if an object instance is a property or a sub property of another object instance? for example I have this class structure: public class Car { public Manufacturer Manufacturer {get;set;} } public class Manufacturer { public List<Supplier> {get;set;} } public class Supplier { string SupplierName {get...
Hi, I'm trying to make a class that will get a list of numbers then print them out when I need. I need to be able to make 2 objects from the class to get two different lists. Here's what I have so far class getlist: def newlist(self,*number): lst=[] self.number=number lst.append(number) def printlis...
I need to add and delete class on an element having multiple classes: This is the html: <div class="heading"> more html code here </div> I want to add class and get value of the added class. Can I do this? If not, how can a new class be added or removed? if ($(".heading").attr('class') == 'hidden') then $(".heading").removeClass('h...
I have a jar file which contains some classes those which i want to use in my project. I am working in command line and not in eclipse. Please tell me how i should use those classes in the jar file for my project. ...
The problem is really simple, I have a class "Stock", I want to load its property "StockName", "StockCode' from the db. so which patten should I use? pattern 1) Use service class to create it public interface IStockService{ Stock GetStock(string stockCode); void SaveStock(Stock stock); } p...
Hi, I have a 2 WCF services that are exposing the same object. Lets say the first service (SerA) exposes a class (classA) and the second service (SerB) which adds the filled classA also exposes this class (as this class is included in the parameters) Now when I retrieve the classA from SerA, it is concatenated with a namespace SerA.cla...
In JavaScript, I want to create an object instance (via the new operator), but pass an arbitrary number of arguments to the constructor. Is this possible? What I want to do is something like this (but the code below does not work): function Something(){ // init stuff } function createSomething(){ return new Something.apply(null...
In Python, how do you make a subclass from a superclass? ...
Hi all, i have a class with some method that depend by one parameter. What is the best way to write this method? Example: First way class Test{ var $code; function Test($type){ if($type=="A"){ $this->code=create_function(/*some args and some code*/); } else if($type=="B"){ $this->code=create_functi...
If I use this code vbc /t:library /r:System.dll,System.Data.dll,System.Web.dll,Cooperator.Framework.Web.dll, DateRangePicker.dll,DateRange.dll,conexiones.dll, abmbancos.aspx.vb I can compile the codebehind file of an asp.net webform page into a dll file, as long as the codebehind file is declared with a regular class instead of a parti...
I don't want to create an object because it won't affect my visible form. How can I call a method so it does its thing in the visible side of things. public class foo { public void SetString(string foo) { label1.Text = foo; } } Inside another class: foo X = new foo(); X.SetString("testlololol"); This will set the la...
My question is very similar in concept to this question. However, I was wondering how I would programmatically identify every class in a given namespace that implements a specific interface in a method (so I can add an object of each to a List), similar to how the Stripes Framework (in Java) finds all the classes that implement the Actio...
Is there any equivalent of C#'s Assembly.GetExecutingAssembly() in ActionScript 3? I am attempting to iterate over each class in a namespace that implements a specific interface. ...
I have a file that is read and written to. I need to make sure when its been written to, nobody else will try to write to it. I put a lock on the whole function which allows to either read or write but I still get errors such as The process cannot access the file 'FILENAME' because it is being used by another process. public static TY...
Hi, i want to do the following: I want to declare the instance variables of a class iterating over a dictionary. Let's assume that i have this hash hash = {"key1" => "value1","key2" => "value2","key3" => "value3"} and i want to have each key as instance variable of a class. I want to know if i could declare the variables iterating o...