methods

I'm get kind of getting mixed messages about this so I'm hoping someone can clear this up for me. Should I be using Shared methods/functions in the following situation: I have a generic class named "Person". This class represents a person in the database. I have a manager class named "PersonManager". This class contains methods which adds, updates, deletes individual Person objects. A method also exists to lookup Persons from the database. Should these methods in the manager class be declared as shared methods? Or is it more appropriate to create a new instance of the PersonManager class each

I have been trying to figure out a way to tag several methods from my base class, so that a client class can call them by tag. The example code is: public class Base { public void method1(){ ..change state of base class } public void method2(){ ..change state of base class } public void method3(){ ..change state of base class } } A client class from a main() method will call each method of Base through a random instruction sequence: public static void main(String[] args) { String sequence = "ABCAABBBABACCACC" Base aBase = new Base(); for (int i = 0; i < sequence.length(); i++){ char temp =

This is for Laravel 5.2. I have a method defined as follows in my Users model: public function name() { return "$this->name_first $this->name_last"; } I'm trying to figure out how to use that as part of a query, but it seems like it isn't possible for a somewhat obvious reason: the database doesn't know anything about the method and that makes perfect sense. However, the concept of what I'm trying to achieve makes sense in certain contexts, so I'm trying to see if there's a way to accomplish it naturally in Eloquent. This doesn't work, but it represents what I'm trying to accomplish: public

I'm trying to create a node app that reads a textfile line by line using the 'readline' module, and prints it to the console. var lineReader = require('readline'); lineReader.createInterface({ input: fs.createReadStream('./testfile') }); lineReader.on('line', function(line){ console.log(line); }); According to the module's documentation, there should be an 'on' method . However when I log the instance of the readline object I created, I don't see an 'on' method anywhere: { createInterface: [Function], Interface: { [Function: Interface] super_: { [Function: EventEmitter] EventEmitter: [Circular

I have an object o which guaranteed at runtime to be one of three types A , B , or C , all of which implement a common interface I . I can control I , but not A , B , or C . (Thus I could use an empty marker interface, or somehow take advantage of the similarities in the types by using the interface, but I can't add new methods or change existing ones in the types.) I also have a series of methods MethodA , MethodB , and MethodC . The runtime type of o is looked up and is then used as a parameter to these methods. public void MethodA(A a) { ... } public void MethodB(B b) { ... } public void

I am using Ruby on Rails 3.2.2 and, in order to display warning messages for development purposes, I am using logger.warn in my code. I would like to retrieve the method name in which that logger.warn runs so to output that method name to the log file. class ClassName < ActiveRecord::Base def method_name # Note: This code doesn't work. It is just a sample. logger.warn "I would like to retrieve and display the #{self.class.to_s}##{method_name}" end end In the log file I would like to see: I would like to retrieve and display the ClassName#method_name Is it possible? If so, how can I make that?

I've been searching around but I just can't seem to find what I'm looking for, so I'll give it a go here. Situation: I have the class MainWindow and MainWindowData. In MainWindowData are only public properties defined with the attribute UpdateGUI. public class UpdateGUI : Attribute { } public class MainWindowData { [UpdateGUI] public string TESTVAR { get; set; } } Now I want to add a method to each property's setter method in MainWindowData. More specific: void OnPropertyChanged(String PropertyName); I figured I'd fetch all UpdateGUI properties in the MainWindow constructor, and then somehow

I'm trying to call a static magic function ( __callStatic ) from a member of its child class. Problem being, it goes to the non-static __call instead. <?php ini_set("display_errors", true); class a { function __call($method, $params) { echo "instance"; } static function __callStatic($method, $params) { echo "static"; } } class b extends a { function foo() { echo static::bar(); // === echo self::bar(); // === echo a::bar(); // === echo b::bar(); } } $b = new b(); echo phpversion()."<br />"; $b->foo(); ?> Output: 5.3.6 instance How can I make it display "static"? If you remove the magic method '