setter

Best practice since JavaFX setters/getters are final?

由 折月煮酒 提交于 2019-12-06 12:20:17
问题 In the process of converting a Windows application from Swing to JavaFX. We had a lot of custom components that previously overrode the mutator methods of JTextField, for example. In JavaFX these methods are declared final. Should I just be creating wrapper methods that call the final methods and modify the values before and after? I just want to make sure I go about doing it the right way from the beginning. Edit: I will also include the fact that some of this code is from much older

Why do we use 'this' in setter method but not in getter method? [duplicate]

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-06 11:53:57
问题 This question already has answers here : What is the meaning of “this” in Java? (19 answers) Closed 2 years ago . For example, in the following code: private int id; public void setID(int ID) { this.id = ID; } public void getID() { return id; } Why don't we say return this.id in the getter function or conversely say id = ID in the setter function? Also is this actually necessary? I mean, aren't the functions called through an object, say obj.setid(1) or obj.getid() ? Will it work differently

Make Object Immutable at Runtime [C#]

由 爷，独闯天下 提交于 2019-12-06 09:52:36
Is there any way (utilizing Reflection I hope) that I can make an instantiated object immutable along with all of its public properties ? I have a class from someone else's codebase (no source available) that I need to utilize and I basically want an exception to be thrown if any piece of code anywhere tries to call a public setter within this class after it has been instantiated. Note: I do not want to create a wrapper object around the class in order to implement this. I am lazy. No there is not via reflection. Type definitions cannot be altered at runtime via reflection and hence it cannot

benefits of getter/setter VS public vars?

由 可紊 提交于 2019-12-06 04:37:26
问题 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

Why does a readonly property still allow writing with KVC

由 故事扮演 提交于 2019-12-06 03:22:11
问题 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

Mockito injection not working for constructor AND setter mocks together

由 大城市里の小女人 提交于 2019-12-06 02:49:41
问题 I have a class that has members injected through constructors, and OTHERS through setters. I can't seem to get Mockito to inject the setter ones. The constructor-injected are mocked fine, but the setter ones come back as null. When I flipped the setter-ed members to constructor- injected, all is well. here is the original production code: @Autowired private BetRepository betRepository; public void setBetRepository(BetRepository betRepository) { this.betRepository = betRepository; } public

C++ function in parent return child

由 牧云@^-^@ 提交于 2019-12-06 02:36:35
问题 To be honest, I don't really know, how to ask this question, so please don't be mad :) Anyway, I want to have the mutators (setters) in my class to return this to allow for jQuery-like a.name("something").address("somethingelse"); I have a parent class ( Entity ) and several childclasses ( Client, Agent etc. ). The mutators for most things are inherited from the Entity class (like name or address), but they return an Entity object, so I can't call Client mutators on them. In other words: //

How to set ContextMenu of a bound item?

由 ≡放荡痞女 提交于 2019-12-06 01:28:32
问题 I am trying to achieve the following: <Style TargetType="ListBoxItem"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Name="mnuEdit" Header="_Edit" Click="MenuItem_Click" /> </ContextMenu> </Setter.Value> </Setter> <Style> But it throws the following exception: Cannot add content of type 'System.Windows.Controls.ContextMenu' to an object of type 'System.Object'. Error at object 'System.Windows.Controls.ContextMenu' in markup file blah blah blah 回答1: Try this instead:

setter for a boolean variable named like isActive

由 南楼画角 提交于 2019-12-06 00:18:41
问题 I have a property called isActive in my pojo class. When I generated the accessors for this property using Eclipse IDE, it generates following getters and setters Getter : isActive() Setter : setActive() However, when I try to write this property using ibatis framework by mentioning property name as "isActive" , it cribs about not able to find any WRITEABLE propery named 'isActive'. The problem I think lies with not able to deduce the correct property name by inferring setter as setIsActive()

Java - Should private instance variables be accessed in constructors through getters and setters method?

由 混江龙づ霸主 提交于 2019-12-05 17:48:19
问题 I know that private instance variables are accessed through their public getters and setters method. But when I generate constructors with the help of IDE, it initializes instance variables directly instead of initializing them through their setter methods. Q1. So should I change the IDE generated code for constructors to initialize those instance variables through their setter methods. Q2. If yes, then why IDE don't generate constructors code in that way? ============================= EDITED
订阅 setter