A special type of subroutine called at the creation of an object.

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2answers
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7
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95 views

Long constructors, inheritance, class method constructors

My class takes functions as a parameter. There are 6 of them, along with numerous other parameters. Almost all of the fields have default values. It also has a class method that creates an instance ...
2
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0answers
111 views
1
vote
1answer
44 views

Framework constructor

I'm working on my framework constructor. First I tried to look into jQuery and understand it, but it's so out of my league. Instead I googled and put this code together. Though there aren't many posts ...
2
votes
2answers
56 views

Making this login javascript code more organized and more competent?

I have this basic javascript that using a constructor, validates the form where the login fields cant be empty. All this WITHOUT using any js libraries. So far I have come up with this... ...
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2answers
99 views

Improve testability of constructor

I have the following constructor ...
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3answers
112 views

Review of three constructors for a String class

I have the following declaration in my String.h file: private: char* nstring; int nlength; }; The following are three constructors I've implemented in ...
4
votes
5answers
118 views

Reference type and constructors [closed]

Code in Java but should be readable also for c#... Let's assume I have a class with some reference types. Example: ...
0
votes
1answer
108 views

Cleaning up PHP object constructors

I have this annoying problem in PHP with faking overloading constructors. I understand the concept, but the code I produce feels kind of ugly. It isn't a lot of code, just bad code. Any ideas on how ...
1
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2answers
70 views

Write a class with some properties and indexed

Is there a better way to write it? I need the best way to write it. It is this principle? Please show me a better way it breaks SRP? ...
1
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1answer
68 views

__constructor mysqli variable options

I like the fact that I can create a class and have the connection details in one file if I need to update them and then pass them to the method I create in the class that defines my specific use of ...
4
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2answers
148 views

Constructor Chaining in Java

When creating multiple constructors, I usually do the following; ...
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2answers
283 views

JavaFX design writes to static field from constructor

In JavaFX, the lifecycle of an Application is quite different than Swing. Your constructor must take no arguments so that the ...
2
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2answers
645 views

Is this a correct way to write a convenience constructor?

I was reading more about the instancetype on Stack Overflow and now my question is: For every convenience constructor that I write, do I need to have the ...
1
vote
1answer
81 views

Dynamic object creation in Python

I want to abstract away differences between zipfile and rarfile modules. In my code i want to call ZipFile or RarFile ...
1
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2answers
61 views

Changing the state of another entity into the constructor method

I have a Clock class who inherites from pyglet.clock.Clock and behaves like a Singleton. Into the constructor method I have the following line: ...
1
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1answer
136 views

Java constructor should use setter?

I have a simple Java model Class called Person which have a constructor that receives a JSONObject. In that constructor I get the values from the JSONObject and put in my instance variables. This is ...
2
votes
3answers
130 views

Python: How much logic is enough logic, and how much is too much logic in an __init__ method?

I am writing an email parser and cannot decide how much logic should be included in the __init__ function. I know, a constructor should make the object ready for ...
0
votes
2answers
530 views

Constructor with too many arguments [closed]

We have a Transaction class that's very loaded; so loaded that I originally ended up passing almost 20 argument to the ctor. ...
5
votes
3answers
238 views

Calling functions (or invoking methods) in constructor

I had written something like the following, ...
3
votes
3answers
640 views

Self populating view models

So I have a view model (asp.net mcv 3 app) that when instantiated with a particular parameter, populates it's properties via a couple of calls to a web service in it's constructor. ...
1
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2answers
132 views

Get resources inside or outside constructor?

I need your opinion on writing a constructor that's clean code and unit test friendly. Option 1 : ...
6
votes
1answer
1k views

Constructors and inheritance in Groovy

I am new to Groovy and I am having a little problem with constructors of subclasses. Basically, I have a base abstract class like ...
0
votes
2answers
83 views

May be a memory leak somewhere or allocated memory not freed? [closed]

Here is the entire program, please help me, I've tried everything to find out what exactly is going with the memory. The problem is everything runs perfectly, but there are some extra characters ...
2
votes
1answer
110 views

Assign local-variables in constructor

How to make this code in constructor more DRY? Is there some more concise way to assign variables passed through object? ...
3
votes
1answer
186 views

How could this constructor code be improved?

How could this constructor code be improved? I feel like I'm not doing something optimally here... ...
1
vote
1answer
147 views

“metaconstructors” for inheritance in js?

Edit - decl smokes dojo.declare - http://jsperf.com/dojo-declare-vs-decl The code has been updated a bit. ...
3
votes
2answers
3k views

MySQL database connection in the constructor

I'm an absolute beginner on PHP OOP in search of the "Holy Graal" of connecting to MySQL database once and reuse this connection for the whole site So far, I've created these files: classes/db.php ...
13
votes
2answers
5k views

Styles: “object initializer” vs “constructor” object creation

Question: What are peoples preferences between the two methods of creating an object (in C# in particular) and setting other fields (that may not be given values during construction)? Are either of ...
5
votes
6answers
2k views

Constructors - lots of paramters or none and use of set methods

In your opinion what is the best way to construct an object given the two examples below: Option 1: Lots of parameters ...
2
votes
2answers
317 views

How to improve this basic bit of PHP code

How to improve: ...
7
votes
1answer
2k views

Workaround for overloaded constructor in PHP

I have a class whose purpose is to display a comment. I'd like to be able to instantiate it by passing a Comment object if I happen to have it available, or just ...
8
votes
6answers
390 views

Arguments in constructors matching fields

What is your opinion in arguments in constructors matching members as in the following example ...
25
votes
6answers
1k views

Instantiating objects with many attributes

I have a class with quite a few attributes, most of which are known when I create an instance of the object. So I pass all the values in the constructor: ...
19
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5answers
4k views

Database connection in constructor and destructor

I am playing with different ways to do database interaction in PHP, and one of the ideas I have been playing with is connecting to the DB in the constructor and disconnecting in the destructor. This ...