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POWho is responsible for setting the object properties?
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copied!<p>I have an object with fields. In a project I need this object filled with information.</p> <p>whose responsibility is to fill this object?</p> <p>I would like a method like getFilledObject() that returns a full filled object to my program.</p> <p>I can put this logic into the main flow, and fill it "in place", also I can add this method into the class itself, so that it would know how to fill itself according to the parameters I pass. The latter decision is good enough, the only problem is that the class must then know much more about it's nature than a simple plain get-set class.</p> <p>But I feel neither decision is good enough. What should it be? A helper class that contains only the logic to fill the object?</p> <p><hr> You know, yes, Factory is what I was looking for, but it is always mentioned along with polymorphism. In my case I don't need it at all. So I can call it a factory, but would it really be what they called "A Factory pattern"?</p> <p>So what do we have as a result? first, static factory method</p> <pre> class A { ObjType1 obj1; ObjType2 obj2; public A() {} public static getA(int param1, int param2) { A a = null; ObjType3 obj3 = null; if (somelib.complexCheck(param)) { obj3 = someotherlib.getSomething(param2); // other stuff } if (obj3 != null) { // do something with getters & setters, fill a } return a; } </pre> <p>and Factory pattern or something similar to it</p> <pre> class Fact { public static A getA(int param1, int param2) { // do all that stuff here } } </pre> <p>the difference in my opinion would be lots of import directives in the A class in case of <i>static factory method </i>. Also, we can put similar static methods into the Fact class if all those need the same libraries.</p> <p>What would you choose between the two?</p>

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