Presume that there are methodA() , methodB() and methodC(). And methodC() is called at the run-time. Is is possible to know methodC() is called from what method? I was thinking if CallStack can be read at the run-time for some checks? If yes, I think it should not be a big deal. Any ideas? Thanks! ...
Here is a mockup of what I want to do: alist = [1,2,3,4,5] # create a vanilla python list object replacef (alist) # replace __setitem__, extend,... with custom functions alist[0]=2 # now the custom __setitem__ is called This is for a DSL project where the syntax should be as close to normal python as possible, so sub...
Please, help me with to understand this piece of code: protected Customer() { } in the following class (Model class from sample WPF MVVM app): public class Customer : IDataErrorInfo { #region Creation public static Customer CreateNewCustomer() { return new Customer(); } public static C...
Hello, I've got a method (fyi, I'm using c#), accepting a parameter of type "Func", let's say it's defined as such: MethodAcceptingFuncParam(Func<bool> thefunction); I've defined the function to pass in as such: public bool DoStuff() { return true; } I can easily call this as such: MethodAcceptingFuncParam(() => { return Do...
In the snippet of code below, I'm using a class to get a reference to an instance of BookList. This class has a getBook() method which returns an instance of a Book from a String representing an isbn code. The instruction is run in the doGet() method of a HttpServlet. protected void doGet(HttpServletRequest request, HttpServletResponse ...
For example, a list. l1 = [1, 5 , 7] How do I check the methods that it has? (l1.append, for example) Or a string... string.lower( ...
$(document).ready(function() { $('#commentForm').submit(function(){ return $('input[type=text], textarea').each(function(index){ if($(this).attr('value') == ""){ alert(msgHash[$(this).attr('id')]); return false; }else{ if(!$(this).attr('value').match...
All I want to do is make sure that child classes of the class Item implement a static method and I want this to be checked at compile time to avoid runtime errors. abstract classes with static methods don't seem to work: ERROR: A static member cannot be marked as override, virtual, or abstract public abstract class Item { ...
Hello, I'm using EnterpriseLibrary and DbCommand from it. I have two methods which from database gets same formated select. So the DataReader looks same but I'm executing other procedures. Question is if good idea is move to one method executing DbCommand and data reading from DataReader like this: public Dictionary<Guid,List<string>...
I'm writing a plug-in for a 3D modeling program. I have a custom class that wraps instances of elements in the 3D model, and in turn derives it's properties from the element it wraps. When the element in the model changes I want my class(es) to update their properties based on the new geometry. In the simplified example below. I have c...
How do I accept multiple arguments in a custom method? Like: Proxy(101, 2.02, "303"); function Proxy(args:Arguments){ Task(args); } function Task(var1:int, var2:Number, var3:String){ // work with vars } ...
Consider this: class A { int x =5; } class B extends A{ int x =6; } public class CovariantTest { public A getObject() { return new A(); } /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here Covar...
I'm not quite sure how to correctly put this question. I want to dynamically call functions that are contained in classes (I think this means they are called 'methods'). Here is an example of my code which I hope helps explain what I am trying to achieve. In this instance $result returns all the different modules that are loaded. This ...
Hi, I have a java.lang.reflect.Method object and I would like to know if it's return type is void. I've checked the Javadocs and there is a getReturnType() method that returns a Class object. The thing is that they don't say what would be the return type if the method is void. Thanks! ...
I understand that in this code: class Foo { public static void method() { System.out.println("in Foo"); } } class Bar extends Foo { public static void method() { System.out.println("in Bar"); } } .. the static method in Bar 'hides' the static method declared in Foo, as opposed to overriding it in the ...
Hi there! Why if i try: Object(n) //Constructor { this.member = n; } Object.prototype.alertX = function()// Method { alert(this.member); } foo = new Object(4); Object.alertX; I get "this. member is not defined". How can i access the constructor's member inside one of its methods? EDITED: my original purpose is to have an interna...
Hi, I've got a problem with a has_many :through association, i cant call the u1.UsersProfileAttributes.find_by_ProfileAttribute_name("icq") method, rails means that this method doesn't exist. The method u1.UsersProfileAttributes.find_by_ProfileAttribute_id(3) works correctly. u1 is a user object. I don't know whats the problem, because ...
Hi there. I have 2 apps: Class Library named ClLib, and Windows Form Application called ClLibApp. In ClLib, I have a group of classes. They are as shown below: Singapore (parent class) - Nursery - Primary - Secondary In ClLibApp, I need to add a reference from ClLib, so that I can use my application. ...
Hi guys, I'm working on a video player and I initially developed the player with everything in the .FLA file with no classes. Then I started modularizing my player into classes and realised that my classes are static methods rather than instance methods which doesn't seem to be needed in my player. My question is - is this a bad design ...
Help me make this method more solid: /** * Check if the method is declared in the interface. * Assumes the method was obtained from a concrete class that * implements the interface, and return true if the method overrides * a method from the interface. */ public static boolean isDeclaredInInterface(Method method, Class<?> i...