>> I think I still don't understand the big trick of value objects.
Can you explain what you mean by that? Do you mean the advantage of value objects? Value Objects (an OOP design pattern) help you tie related bits of data together, and help you describe what the data is, help you keep values typecast when placed in an array, help you nest objects logically - so when you code, nested data is easier and more intuitive to access than multidimensional arrays. For example, instead of: var personID:Number = 3; //multidimensional array: var personsShirtSleeveColor:uint = people[personID] [2][4][3] and hope you're at the right level (2) and right sub level (4) and what you grab is a color and that it's cast as a number/uint..., to me, this makes more sense: //value objects: var personsShirtSleeveColor:uint = people[personID].shirtVO.sleeveVO.color; Where people is an array of PeopleVOs. ...and my code editor has code hinting along the way, and the compiler enforces typecasting. With multidimensional arrays, none of your data is described, it's like trying to find something hidden in a room with all the lights turned off. Jason Merrill Instructional Technology Architect Bank of America Global Learning Join the Bank of America Flash Platform Community and visit our Instructional Technology Design Blog (Note: these resources are only available for Bank of America associates) -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Cor Sent: Tuesday, September 07, 2010 2:20 PM To: 'Flash Coders List' Subject: RE: [Flashcoders] parsing multi-dimensional array Thanks Jason, I think I still don't understand the big trick of value objects. :-( I will try to transform this in a working example so maybe then it will ring the bell. Thanks a lot, Regards, Cor van Dooren The Netherlands -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Merrill, Jason Sent: dinsdag 7 september 2010 17:02 To: Flash Coders List Subject: RE: [Flashcoders] parsing multi-dimensional array >> Can you give an example, of such a multidimensional array, and how to do this with value objects? Hi Cor. Sorry it took me so long to respond, due to Labor Day here in the states. Sure: //Value Object examples: package { public class ExampleValueObject { public var myProperty:String; //this example has no default value public var myOtherProperty:Number = 0; //this has a default value. public var myOtherValueObjects:Array = []; //An array to store other value objects } } package { public class MyOtherExampleValueObject { public var someOtherExampleValue:String; } } //Use value objects to store data, including value objects within value objects: var myExampleVOs:Array = []; for each (var exampleValue:String in someData) { var myExampleVO:ExampleObject = new ExampleValueObject(); myExampleVO.myProperty = exampleValue; myExampleVO.myOtherProperty = someNumber; for each(var someOtherValue:String in someOtherData) { var myOtherValueObject:MyOtherExampleValueObject = new MyOtherExampleValueObject(); myOtherValueObject.someOtherExampleValue = someOtherValue; myExampleVO.myOtherValueObjects.push(myOtherValueObject); } myExampleVOs.push(myExampleVO); } Now you have an array of ExampleValueObjects, and each of those have properties - and one of those properties is an array of MyOtherExampleValueObjects. And your code completion (at least in a good AS code editor) will work on all this data, so no mistakes or guesswork, and you've described related data in a logical, easy to access, typecast and easy-to-transfer-around way. Jason Merrill Instructional Technology Architect Bank of America Global Learning Join the Bank of America Flash Platform Community and visit our Instructional Technology Design Blog (Note: these resources are only available for Bank of America associates) _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Geen virus gevonden in het binnenkomende-bericht. Gecontroleerd door AVG - www.avg.com Versie: 9.0.851 / Virusdatabase: 271.1.1/3118 - datum van uitgifte: 09/06/10 20:34:00 _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
