problem about late-binding-Collection of common programming errors

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  AnneTheAgile
  c# com .net-3.5 late-binding early-binding
  We are having an intermittent/inconsistent problem whereby the Word COM reference (and other COM references as well) are not being recognized in the case of one user’s machine on some SVN working copies and sometimes only for Debug. In those failure cases, the build fails, complaining of “resolvecomreference task failed unexpectedly”. This is not unexpected, as VS2008 shows the yellow-triangle warning exclamation-point for each such item in the references list.I have read numerous articles on th
• 
  Kara
  php static late-binding
  Testing some late static binding and getting this error on line 5:Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLEline 5:protected static test = ‘A TEST’;Here is the source:class A {protected static test = ‘A TEST’;public static function test() {echo $this->test;} }Class B extends A {public static test = “B TEST”;public function static_test() {echo static::$test;} }$a = new A; $b = new B;echo ‘$a->test()<br />’; echo $a->test(); echo ‘<br /> <br />’
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  Matt Howells
  c# interface late-binding
  I have a data driven mapping application where I need to implement custom functions as plugins. The name of the custom method that I need to execute will also be in the mapping data. I know that I can call the method using the invoke command; but, how can I ensure that each method has the appropriate signature?
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  hakre
  php late-binding late-static-binding
  Starting with version 5.3, PHP supports late binding for static methods. While it’s an undoubtedly useful feature, there are only several cases where its use is really necessary (e.g. the Active Record pattern). Consider these examples:1. Convenience constructors (::create())class SimpleObject {public function __construct() { /* … */ }public static function create(){return new static; // or: return new self;} }If this class may be extended (however, it’s not extended by any class in the same
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  Kara
  java polymorphism late-binding
  I read in “Thinking in java” in chapter “Polymorphism” about the concept of “Late binding” , i just wanna know if my understanding of this concept is true Procedural languages know where is the function to execute before run-time for instance if(condition){func1();}else{func2();}So the address of each possible function is known exactly and before the program runs , so it is compiled easily , but in OOLs examine this code ,,makeItSpeak(Animal a ){a.speak(); }While a may be a dog , a cat or any ot
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  tfl
  c# late-binding
  I have an event handler for a Textbox as well as for a RichTextBox. The code is identical, butIn handler #1 i do:RichTextBox tb = (RichTextBox)senderIn handler #2 accordingly:TextBox tb = (TextBox)senderDoing so i can fully manipulate the sending control. What i want to know is how can i cast the sending object to Textbox or RichTextbox according to its type usingsender.GetType().Nameand then create the control at runtime and work with it. That way i only need one event handler function: less co
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  Kara
  smalltalk late-binding early-binding
  When discussing the evolution of computer languages, Alan Kay says that the single most important attribute of his Smalltalk is late binding; it gives the language its malleability and extensibility, and allows inappropriate coupling to be refactored out over time. Do you agree? Are there compensating advantages for early binding that explain why it seems to be the dominant of the two paradigms for domains where either could be used?My personal experience (which is not broad or deep enough to be
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  DenverCoder8
  java reflection late-binding
  While studying Java tutorials, Reflection and Late Binding have confused me. In some tutorials, they have written that they are both the same, and that there isn’t any difference between Reflection and Late Binding. But other tutorials say that there is a difference.I am confused, so can someone please explain what Reflection and Late Binding are in Java, and if posible, please give me some real world examples of both.Thanks..
• 
  James Wiseman
  javascript javascript-events late-binding
  In my answer to the following SO question: What does event binding mean?, I made a passing remark that the use of inline-JavaScript/Early-Binding to bind JavaScript Events was ‘often misguided’For example:<input id=”MyButton” type=”button” value=”clickme” onlick=”Somefunction()” />I was arguing for the ‘late-binding’ approach where there is no JavaScript referenced in the markup, which I understand to be established best-practice. However, the commenters asserted that there were occasions
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  Phil Murray
  c# .net reflection late-binding
  I am currently writing a helper library that connects to shop floor PLCs via Software Toolbox’s TopServer. The TopServer library has separate versions for x86 and x64 architectures and I want to load the appropriate version at runtime using late binding based on the CPU architecture of the calling code. The methods in the two libraries have the same signatures.I can use reflection to load the relevant object using the below code but I am wondering what is the best method of using this instance i
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  Mechanical snail
  oop reflection terminology monkeypatching late-binding
  Apologies for the recursive nature of this question but the chosen answer to a question on SO got me questioning my understanding of reflection.I thought reflection was mainly about querying the internal happenings of a program while it’s running. The example given in this response patches Ruby’s built-in Integer class. Isn’t this more like function overloading/inheritance rather than runtime modification? Is class reopening really an example of reflection?
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  MarkJ
  vb.net reflection late-binding
  What should be more proper or what is recommended to use in VB.NET from either reflection vs. late binding:’Type can be various objects that have a common property for sure.’ Dim type = sender.GetType() Dim prop = type.GetProperty(“Text”, 20) Dim value = property.GetValue(sender, Nothing)versus:Dim value = sender.Text
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  Charlie Salts
  c# plugins interface late-binding invalidcastexception
  I’ve done this before in C# for a plugin system which works fine, which is why I’m puzzled as to why this new, separate plugin system is not working the way I would expect.I have my plugin assembly – let’s call it “plugin.dll” and I have my main assembly – let’s call it App.exe. I have an interface called IMyObject and its implementation, MyObject and both are defined in plugin.dll. I’ve copied the exact code file for IMyObject (which the plugin developer has provided to me) into my main App.ex
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  Matthew Flaschen
  c++ dynamic binding late-binding
  i was asked this question in an interview.late binding is dynamically identifying the symbol during the runtime as far as my knowledge is concerned.please correct me if i am wrong.i was asked a question like what are some of the problem that we would face when we use late binding in c++. i was actually out of my own ideas about that.could you please share the problems you might have faced during your professional life.thanks.
• 
  Amaresh
  java oop late-binding
  If you implement an interface compiler asks you to provide implementation of those methods. But in case of calling overridden clone() method how compiler come to know that a particular interface is not mentioned (here in this case Cloneable) in class declaration. How compiler does this mapping to tell user that CloneNotSupported ? Is it has something to do with late-binding? I think JVM has information about each class in method area like what are classes it is extending and what are interfaces
• 
  Cybermaxs – Betclic
  c# binding late-binding
  I’m trying to get my head around when early/late binding occurs in C#.Non-virtual methods are always early bound. Virtual methods are always late bound: the compiler inserts extra code to resolve the actual method to bind to at execution time and checks for type safety. So subtype polymorphism uses late binding.Calling methods using reflection is an example of late binding. We write the code to achieve this as opposed to the compiler. (E.g. calling COM components.)VB.NET supports implicit late
• 
  cspolton
  oop polymorphism late-binding early-binding
  Is there any direct relationship between Late Binding and Overriding, similarly for Early Binding and Overloading?They (Binding/Overriding/Overloading) can be termed as ways to implement polymorphism, but is there any “Direct Relationship” ex: Late Binding is a sub/super concept to Overriding and vice versa etc?
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  chief7
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  iter
  objective-c metaprogramming late-binding
  I want to programmatically associate code with selectors. I am not clear on how to do that in Objective C. In Ruby, I might override method_missing. In Common Lisp, I might define a macro. In Objective C, I can get part of the way there with @dynamic properties, but I’m unclear on how to actually implement them.Here’s a concrete example: I want to use an NSMutableDictionary to persistently store parts of my object. My class has two methods that handle the basic functionality, and a bunch of dyna
• 
  Todd
  visual-studio-2010 late-binding
  I am confused about how late binding works in practice in an IDE (in this case, Visual Studio).In most discussions of early binding vs. late binding, ease of development is mentioned as an advantage of early binding because early binding allows the IDE to offer features like automatic code completion and compile-time error checking. (For instance, see Early binding vs. late binding….)However, I believe it is common for a class library to be available during development, despite being undistrib
• 
  Sean Cheshire
  excel vba ms-access late-binding import-from-excel
  I am trying to create a macro that will regularly move 25,000 – 35,000 lines in Excel, to an Access database. As I understand it, if I’m working in an environment where people using the macro have different versions of Excel and Access (I happen to be using 2007), I’m best off using late binding, because it avoids problems with different references and versions,etc. – once it works, it works (even though it’s slower). I’m trying to get the following code to work in Excel VBA:Sub TransferToDB() D
• 
  iammilind
  java object late-binding early-binding
  I know that all objects are created at runtime when the function is called.Binding is when we bind methods data members inside the class.early binding is binding all the method instance variables at compile time. I thought all objects are created at runtime so it must bind also all methods data members at runtime.Why in early binding the call to an object method is determined at compile time? if that object is created at runtime.for example.class A{public void foo(){//some code here} }public sta
• 
  Joe Casadonte
  java polymorphism late-binding
  This code:public class PMTest {private static class Runner { }private static class Server extends Runner { }private static class Task{public void delegate(Runner runner){System.out.println(“Task: ” + runner.getClass().getName() +” / ” + this.getClass().getName());}}private static class Action extends Task{public void delegate(Server server){System.out.println(“Action: ” + server.getClass().getName() +” / ” + this.getClass().getName());}}private static void foo(Task task, Runner runner){task.dele
• 
  Brian Low
  c# reflection runtime invoke late-binding
  I need to call a method on an object but I do not know the method name until runtime.What are the techniques available? (e.g. GetMethod().Invoke(), delegates, c# 4.0 dynamic)Thanks!
• 
  Pavel S.
  php inheritance dir late-binding
  Is it somehow possible to get the location of PHP file, evaluated at runtime? I am seeking something similar to the magic constant __DIR__, but evaluated at runtime, as a late binding. Similar difference with self and static:__DIR__ ~ self??? ~ staticMy goal is defining a method in an abstract class, using __DIR__ which would be evaluated respectively for each heir class. Example:abstract class Parent {protected function getDir() {// return __DIR__; // does not workreturn <<I need this&g
• 
  Kara
  c late-binding dynamic-loading
  From wikipedia:Dynamic loading is a mechanism by which a computer program can, at run time, load a library (or other binary) into memory, retrieve the addresses of functions and variables contained in the library, execute those functions or access those variables, and unload the library from memory.Late binding is a computer programming mechanism in which the method being called upon an object is looked up by name at run-time.In my opinion, A similarity is they are both mechanisms in which metho
• 
  haelix
  java serialization late-binding
  In a client-server setup, I modified the class definition of an object sent by the server and expected to crash on the client side (the client jar has not been updated to reflect these changes).It doesn’t crash, however.Note: the way objects are used by the client, might avoid the crash. The client never casts the Object that is deserialized, and never uses fields that were removed. The object is only used from Python scripts via Jython, which probably employs some late-binding mechanism (reflec
• 
  Adam Levitt
  javascript dialog knockout.js modal late-binding
  I am using knockout.js to display a list of employees. I have a single hidden modal markup on the page. When the “details” button for a single employees is clicked, I want to data-bind that employee to the modal popup. I am using the ko.applyBindings(employee, element) but the problem is when the page loads, it is expecting the modal to start off as bound to something. So I’m wondering, is there a trick/strategy to do a late/deferred databinding? I looked into virtual bindings but the docume
• 
  J.F. Sebastian
  python closures lazy-evaluation late-binding
  While I was investigating a problem I had with lexical closures in Javascript code, I came along this problem in Python:flist = []for i in xrange(3):def func(x): return x * iflist.append(func)for f in flist:print f(2)Note that this example mindfully avoids lambda. It prints “4 4 4”, which is surprising. I’d expect “0 2 4”. This equivalent Perl code does it right:my @flist = ();foreach my $i (0 .. 2) {push(@flist, sub {$i * $_[0]}); }foreach my $f (@flist) {print $f->(2), “\n”; }”0 2 4″ is pri

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