overriding

问题 I want to add some functionality to ITask/TTask. I wrapped the new methods in a new Interface (IMyTask) which inherits from ITask: type IMyTask = interface(ITask) procedure MyNewMethod; end; TMyTask = class(TTask, ITask, IMyTask) private FSomeList: TList<integer>; public procedure MyNewMethod; constructor Create(const AProc: TProc; AThreadPool: TThreadPool = nil); overload; constructor Create(Sender: TObject; Event: TNotifyEvent); overload; constructor Create(const Proc: TProc); overload;

问题 After reading & researching a lot i am asking this question today, lot of code available to override core magento files but not magento plugin files. I have installed CsMarketplace plugin to my website for vendor management. I want to override the vendor - register function to write my custom code which needs to work just after vendor is successfully registered. Need to override: function createPostAction(); in file mypoject/app/code/local/Ced/CsMarketplace/controllers/AccountController.php

问题 I am trying to modify a gem (Devise token auth to be precise) to suit my needs. For that I want to override certain functions inside the concern SetUserByToken. The problem is how do I override that? I don't want to change the gem files. Is there an easy/standard way of doing that? 回答1: Bear in mind here that a "concern" in Rails is just a module with a few programmer conveniences from ActiveSupport::Concern. When you include a module in a class the methods defined in the class itself will

问题 Hello fellow seasoned developers! I was wondering if it were possible to override the .Net Request.QueryString object somehow? It would be really nice if this could be done without having to create my own HTTP module as well. I have been tasked with RSA(1024) encrypting all the querystrings in my application. However, the application is already built and there's a LOT of places where querystrings are being set so ideally i would like to make a global change that would decrypt the query and

问题 This question already has answers here : Derived class not inheriting overloaded method from base class (2 answers) Closed 4 years ago . I was just surprised to find that the following does not compile in VS2008. The compiler complains that it cannot convert parameter 1 from const int to int& thus demonstrating that it is failing to look at the available method in the Base class. Is there a good reason for this or is it a deficiency not found in other compilers? struct Base { virtual void

问题 So what I'd like to do is to override the default date_select method (I'd like to make an 'optional / unspecified' date input). What I've tried so far is this: lib/overrides.rb ActionView::Helpers::DateHelper::DateTimeSelector.class_eval do def build_selects_from_types(order) select = '' order.reverse.each do |type| separator = separator(type) unless type == order.first # don't add on last field select.insert(0, separator.to_s + send("select_#{type}").to_s) end select.insert(0, '<p>HI!!</p>')

问题 I am using log4j2 to do some logging for a project. My Loggers section in my config looks like this. <Loggers> <!-- default logger --> <Root level="info"> <AppenderRef ref="Console"/> </Root> <!-- only log warn/error/fatal for external libs --> <Logger name="org.cfg4j" level="warn" additivity="false"> <AppenderRef ref="Console"></AppenderRef> </Logger> <Logger name="io.netty.util" level="warn" additivity="false"> <AppenderRef ref="Console"></AppenderRef> </Logger> </Loggers> This doesn't seem

问题 Suppose I have the following four classess, out of which two are abstract and two are concrete: Abstract1 , Concrete1 , Abstract2 , Concrete2 . Concrete1 extends Abstract1 and Concrete2 extends Abstract2 . Suppose I have the following four classess, out of which two are abstract and two are concrete: AbstractProp , ConcreteProp , AbstractClass , ConcreteClass . ConcreteProp extends AbstractProp and ConcreteClass extends AbstractClass . The code for AbstractClass would look like the following:

问题 Consider these classes: Class A : public QObject { ... Q_PROPERTY(int value READ value WRITE setValue NOTIFY valueChanged) virtual int value() { return m_value; } void setValue(int v) { m_value = v; Q_EMIT valueChanged();} ... }; Class B : public A { ... int value() { return m_value * 2; } ... }; When property value is accessed, the Class A method is called directly instead of Class B's. So far, to workaround this apparent limitation I've replicated the property code and connected the signals

问题 I have a rather technical question concerning the definition of override-equivalent (JLS 8.4.2) in the context of receiver parameters. Edit : After posting this question, there was a lot of confusion in the comments about receiver parameters. Many people seemed to believe that having a parameter named this in the code below is illegal and therefore misunderstood the question. Please refer to https://docs.oracle.com/javase/specs/jls/se9/html/jls-8.html#jls-8.4.1 if you do not know this feature