Hi David, I've been reading the whole conversation with particular interest since I've been wondering about the same thing for a while now. Today at the MAX conference I asked the developers of FLEX Builder if there was any such thing in Flex, since it seems such a logical place for a tool like this. The answer was that they have it on the list of possible features, but haven't come that far. Would be nice if the cracks at Adobe could do the hard work for us, in payed time, hehe.
Anyway, I've written a Parser class that takes data from XML converted to AS-style Objects (so all is accessible in basic dot-notation) plus a VO class name. The specified VO class implements an interface IParsable, which has one function, parseObject (o:Object) : Boolean. Each VO class takes care of its own parsing of the data into its member variables. This construction saves the hassle of producing all the "unmarshallXXX" functions in one single location: Each VO class can get its member variables with types as defined in the XMLSchema, plus its parsing functionality to go from the XML to the member variables. I can send you source code if you like, it will be available in the upcoming release of the ASAPFramework (www.asapframework.org). Right now I'm most interested in a tool that will kindof "guess" (in an educated way) the VO implementation from XML, rather than producing schemas for all XML files. I don't mind having to do some handwork after a tool has produced the basic code, as long as it saves me, say, 90% of the boring work. I have the idea that especially the flexibility of the XML standard can make a tool like this immensely complex very soon. There should be tools like this out there for Java, and Actionscript isn't that different from Java that it wouldn't be possible to adapt the code. One condition will have to be that it's open source, obviously. If I find the time, I'll have a look at Castor (www.castor.org), which seems to do pretty much what we're looking at. In the meantime, keep up the good work and keep us posted :) Stephan > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of David Holroyd > Sent: dinsdag 26 september 2006 15:26 > To: [email protected] > Subject: Re: [osflash] XMLSchema -> ActionScript > > On Tue, Sep 26, 2006 at 07:49:21AM +0100, jtgxbass wrote: > > Another interest is that one could use the same principal to actually > create > > the XML parseing routine (a routine that takes the XML - which conforms > to > > the schema - and creates the VO instances at runtime). Akin to what a > SOAP > > parser/implemetation does. > > Indeed, the code I posted earlier takes a stab at doing that. Here are > the results of running against the test Schema I've been using: > > > ----8<---- > package com.example.merchandise._2005{ > public class Unmarshaler { > public function > unmarshalCatalogueCategory(thisElement:XML):CatalogueCategory { > var _result:CatalogueCategory = new CatalogueCategory(); > _result.id = [EMAIL PROTECTED]; > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.title = _children[_seq++].text(); > _result.description = _children[_seq++].text(); > _result.product = new Array(); > while (_seq<_children.length() && > _children[_seq].name()==new QName("http://example.com/merchandise/2005";, > "product")) { > > _result.product.push(unmarshalProduct(_children[_seq++])); > } > return _result; > } > public function unmarshalColour(thisElement:XML):Colour > { > var _result:Colour = new Colour(); > _result.id = [EMAIL PROTECTED]; > _result.swatchhex = [EMAIL PROTECTED]; > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.description = _children[_seq++].text(); > _result.productshots = > unmarshalProductShots(_children[_seq++]); > return _result; > } > public function unmarshalImage(thisElement:XML):Image { > var _result:Image = new Image(); > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.imageSmall = > unmarshalImageData(_children[_seq++]); > _result.imageLarge = > unmarshalImageData(_children[_seq++]); > return _result; > } > public function unmarshalImageData(thisElement:XML):ImageData > { > var _result:ImageData = new ImageData(); > _result.filename = [EMAIL PROTECTED]; > return _result; > } > public function unmarshalProduct(thisElement:XML):Product { > var _result:Product = new Product(); > _result.id = Number([EMAIL PROTECTED]); > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.title = _children[_seq++].text(); > _result.description = _children[_seq++].text(); > _result.price = Number(_children[_seq++].text()); > _result.colourvariations = new Array(); > for each(var _child:XML in_children[_seq++].elements()) > { > > _result.colourvariations.push(unmarshalColour(_child)); > } > _result.sizevariations = new Array(); > for each(var _child:XML in_children[_seq++].elements()) > { > > _result.sizevariations.push(unmarshalSize(_child)); > } > _result.skus = new Array(); > for each(var _child:XML in_children[_seq++].elements()) > { > _result.skus.push(unmarshalSKU(_child)); > } > return _result; > } > public function > unmarshalProductShots(thisElement:XML):ProductShots { > var _result:ProductShots = new ProductShots(); > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.image = new Array(); > while (_seq<_children.length() && > _children[_seq].name()==new QName("http://example.com/merchandise/2005";, > "image")) { > > _result.image.push(unmarshalImage(_children[_seq++])); > } > return _result; > } > public function unmarshalSize(thisElement:XML):Size { > var _result:Size = new Size(); > _result.code = Number([EMAIL PROTECTED]); > var _children:XMLList = thisElement.children(); > var _seq:int = 0; > _result.description = _children[_seq++].text(); > return _result; > } > public function unmarshalSKU(thisElement:XML):SKU { > var _result:SKU = new SKU(); > _result.id = [EMAIL PROTECTED]; > _result.colourId = Number([EMAIL PROTECTED]); > _result.sizeId = Number([EMAIL PROTECTED]); > return _result; > } > } > } > ---->8---- > > > ta, > dave > > -- > http://david.holroyd.me.uk/ > > _______________________________________________ > osflash mailing list > [email protected] > http://osflash.org/mailman/listinfo/osflash_osflash.org _______________________________________________ osflash mailing list [email protected] http://osflash.org/mailman/listinfo/osflash_osflash.org
