overriding

How to remove override , when uninstalling the module in prestashop?

由 偶尔善良 提交于 2019-12-07 08:35:43
问题 Am overriding the classes and controllers using my module. But when uninstalling it didn't remove the override files in override folder which are created using this module. because of this am getting an error "Unable to install override: Class CartOverrideOriginal does not exist" when am trying to install second time. can anyone help me, how to remove those files when uninstalling the module itself and not manually.. Do I need to write any function to achieve this? 回答1: Please note that

Subclassing a set of inter-dependent classes in Objective-C and ensuring type-safety

由 时光毁灭记忆、已成空白 提交于 2019-12-07 08:30:27
问题 I've implemented a basic graph class (not as in "plotting" but as in "network"!), that's to be used for basic graph theoretical tasks . (see summarised header file snippets below) In addition to the generic graph functionality it also implements functionality for node positioning in 3D space . And this extended 3D functionality I'd like to isolate into a subclass , resulting in: light-weight generic classes (MyGenericGraph, MyGenericGraphNode, MyGenericGraphEdge) heavier-weight specialized

Why variables are not behaving as same as method while Overriding.? [duplicate]

由 半世苍凉 提交于 2019-12-07 08:29:01
问题 This question already has answers here : why java polymorphism not work in my example (3 answers) Closed 3 years ago . Generally Overriding is the concept of Re-defining the meaning of the member in the sub class.Why variables are not behaving like methods while Overriding in java ? For instance: class Base { int a = 10; void display() { System.out.println("Inside Base :"); } } class Derived extends Base { int a = 99; @Override // method overriding void display() { System.out.println("Inside

sencha touch override ext.ajax

由 我是研究僧i 提交于 2019-12-07 08:11:26
I'm writing a sencha touch app using sencha architect. Because my app do lot of ajax request, most of it need to send 'token' in request header for authentication. So I think of create child class base on Ext.Ajax which always has 'token' in request header. Then I can use this child class without care of the header. MyApp.override.Ajax.request({ ... }) I try define this in app/override/Ajax.js Ext.define('Myapp.override.Ajax', { override: 'Ext.Ajax', headers: { 'token': 'test' } }); I also set this as 'requires' in Application. But get error when try to call Myapp.override.Ajax.request({ ... }

Method has the same erasure as another method in type - part 2

由 有些话、适合烂在心里 提交于 2019-12-07 07:30:59
问题 I completely get this question Method has the same erasure as another method in type and the answer to it. Please can anyone help me understand the below? Trying hard to digest, why the 2nd code snippet below gives compiler error? Code 1: Compiles fine class Parent { public void set(Collection<Integer> c) { } } class Child extends Parent { public void set(Collection<Integer> c) {} } Code 2: Compiler Error at set method in Child class. class Parent { public void set(Collection<?> c) { } }

Java Inheritance - this keyword

由 时光毁灭记忆、已成空白 提交于 2019-12-07 06:58:09
问题 I searched online for similar question, but could not find it. So, posting here. In the following program why the value of 'i' is printed as 100? AFAIK 'this' refers to the current object; which in this case is 'TestChild' and the class name is also correctly printed. But why the value of the instance variable is not 200? public class TestParentChild { public static void main(String[] args) { new TestChild().printName(); } } class TestChild extends TestParent{ public int i = 200; } class

Override Entity Framework Entity Property

由 南笙酒味 提交于 2019-12-07 06:20:02
问题 I have an entity in EF named Profile and I would like to add data annotation attributes to the FirstName property of this entity. So, I created a new partial class like so; public partial class Profile : EntityObject { [Required] [Display(Name = "First Name")] [EdmScalarPropertyAttribute(EntityKeyProperty = false, IsNullable = false)] [DataMemberAttribute()] override public global::System.String FirstName { get { return _FirstName; } set { OnFirstNameChanging(value); ReportPropertyChanging(

Java overridable call in constructor

由 血红的双手。 提交于 2019-12-07 05:15:15
问题 I know it is a bad (security) practice to call overridable methods from an object constructor in Java. However, for example, if the constructor has to initialize some data, it seems reasonable to call the respective setter method so that I don't copy code. The setters are public and not final. Is there any standard way of dealing with this, like declaring private setter methods, that the public ones call? To illustrate, here is some code: class A { private double x,y; private privateSetX

Django class overrides fails System check

由 别说谁变了你拦得住时间么 提交于 2019-12-07 04:15:23
问题 I am trying to upgrade from Django 1.7.1 to 1.8 on my dev env. I seem to be having an issue with one of my models, I think a core file got upgraded and its messing with my model. I cant seem to figure out what's causing it to die. This is the only error I get when I attempt to run a manage.py test CommandError: System check identified some issues: ERRORS: graphite_alerts.CheckResults: (models.E020) The 'CheckResults.check()' class method is currently overridden by <django.db.models.fields

Should I call the base class implementation when overriding a method in C# for ASP.NET?

由 天大地大妈咪最大 提交于 2019-12-07 03:56:22
问题 I understand overriding a method/function redefines its implementation in the derived class from its implementation in the base class. Now what confuses me, is if I override a class in ASP.NET such as CreateChildControls() (I picked it randomly for no particular reason), VS2008 auto generates: protected override void CreateChildControls() { base.CreateChildControls(); } Good enough, the default implementation just calls the base class' CreateChildControls() . So if I want to run some code,
订阅 overriding