getter

I have a doubt regarding weak property in ARC (auto reference counting) My understanding (correct me if I am wrong): weak property behaves similar to the assign property except that when the instance that the property was pointing to gets destroyed, the ivar is made to point to nil. Question: I just feel that the getter of the weak property retains and autoreleases. Isn't it suppose to behave like getter of the assign property where the getter doesn't retain and autorelease ?(pls refer to the program) Program: I have given below the program with the actual output and my expected output. Note -

Is there a benifit to using: private var _someProp:String; public function set someProp(value:String):void { _someProp = value; } public function get someProp():String { return _someProp; } As opposed to just using: public var someProp:String; I realise using getter/setter can be useful when you need to further processing or need to be notified of when the property is changed like so: public function set someProp(value:String):void { _someProp = value; _somePropChanged = true; doSomethingElse(); } But if you don't need this, then is there any reason to use getter/setter over just using a

I'm working through the "Key Value Coding" chapter in "Programming for Mac OS X". I've built an interface with a slider and a label, both bound to fido, an int. If I set the property for fido to readonly, moving the slider still causes the label to change it's value. I had assumed that I'd get some sort of error for this. If the property is readonly, how come the slider can still write to the property? I thought that it would have no setters created, and KVC wouldn't work. Thanks. Here's the code I'm using: #import <Cocoa/Cocoa.h> @interface AppController : NSObject { int fido; } @property

I have been searching for this online, but I can't seem to find something that is clear enough for me to understand. I have seen "similiar" questions on here about this in Java. class animal{ private $name; // traditional setters and getters public function setName($name){ $this->name = $name; } public function getName(){ return $this->name; } // animal constructors function __construct(){ // some code here } // vs function __construct($name){ $this->name = $name; echo $this->name; } } $dog = new animal(); $dog->setName("spot"); echo $dog->getName(); // vs $dog = new animal("spot"); Should I

Often, I come across code where the Getter method is repeatedly used/abused to get some value or pass it as a method parameter, for ex: public class Test { public void someMethod() { if(person.getName() != null && person.getName().equalsIgnoreCase("Einstein")) { method1(person.getName()); } method2(person.getName()); method3(person.getName()); method4(person.getName()); } } I usually code it, as below: public class Test { public void someMethod() { String name = person.getName(); if(name != null && name.equalsIgnoreCase("Einstein")) { method1(name); } method2(name); method3(name); method4(name

While working with Node.js, Mongoose and MongoDB, I have found that my Mongoose schema getters and setters do not fire when I perform a findOne query. I have found an old thread that suggests there was an issue with getters and setters in version 2.x, but it states that it has since been resolved and I'm using the very latest version of Mongoose (3.8.7). Here's part of my schema function testGetter(value) { return value + " test"; } /** * Schema */ var schema = new Schema({ username: { type: String, required: true, unique: true, get: testGetter } }); // I have also tried this. schema.path(

I've read a few articles/posts regarding the use of Getters and Setters, and how they help to defeat the purpose of encapsulation in domain model objects. I understand the logic behind not using setters - you are allowing client code to manipulate attributes of that object, outside the context of the object business rules and invariants. Now this principal does still confuse me. For example, what happens if I need to change the value of a member variable of an object? For example, if the name of a person changes how can I reflect this in the model? At first I thought, well why not have a

I am trying to get getter/setter support for ng-model by implementing a directive that will take care of getting and setting the values to/from the view/model. I am almost there, but I end up in infinite $digest loops. The idea is to set ng-model="$someFieldToStoreInTheScope", and then have the getter/setter directive do the updates between that field and the getter/setter functions. I use $watch to update the model using the setter expression when the ngModelController updates the field in the scope, and another watch to update that field when the getter expression changes. Have a look at: