Question

SOAP - subclasses in WSDL

Asked by: darrello

I have a problem using the .PAS files that I generated by importing several WSDL Files.  The issue is that I have one main WSDL (http://components.groove.net/Groove/Components/GWS/2_5/wsdl/GrooveEvents.wsdl )that is returning a very simple SOAP response.  The <EventData> element contains different data below it (xml sequence) depening on what the type attribute is - here is where the problem is.  

For example, the event that I am tracking is a File event, and it returns an <EventData type="xsi:type="e:FileAddEventData"><FileDescriptor>...</FileDescriptor></EventData> element.  The binding that is created from the WSDL file for the event (listed above) simply creates an EventData.type (Widestring) attribute - that's it.  I need to get the actual data out of the event and I really don't want to manually parse the XML, I would like to learn how to properly register the data types using Delphi - stubborn, but more effective in the long-term.

So far I have taken the class created for the event data "EventData", and I have subclassed to create an data structure that adds the .FileDesc: FileDescriptor as a property - but I have no idea how to register this interface, nor where to do it.  My gut says that I will have to register it in the GrooveEvents.pas (file created on import of the GrooveEvents.wsdl).  My guesses are it has something to do with the RemClassRegistry.RegisterXSClass function - but don't let me misguide you!

The Files WSDL can be found at (http://components.groove.net/Groove/Components/GWS/2_5/wsdl/GrooveFilesBase64.wsdl).  It contains the class that handles the <FileDescriptor>.


NOTE:  I have validated that the SOAP response does contain the info I am looking for (i.e. the XML is there - the sub-element for FileDescriptor is just being ignored.)

Here is a .Net example of the problem and a solution, obviously in a MS environment (both C# and VB.Net are shown):
http://www.groove.net/support/forums/messageview.cfm?catid=15&threadid=7682

Any guidance (or code!) is greatly appreciated.

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Asked On
2004-07-16 at 06:52:58ID21061181
Tags

delphi

,

soap

,

wsdl

Topic

Delphi Programming

Participating Experts
2
Points
0
Comments
5

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Answers

 

by: darrelloPosted on 2004-07-18 at 17:30:48ID: 11579949

hmm - the lack of response leads me to believe that there may not be a good solution for this one - or do we just not have enough Delphi SOAP experts?

 

by: Workshop_AlexPosted on 2004-07-20 at 05:53:24ID: 11592235

I've done a bit with SOAP in Delphi 7 but discovered that it's support is pretty flawed. A Delphi SOAP client will work fine with a Delphi SOAP server and some other servers, but it also has a lot of incompatibilities. Because of this, I soon quit again looking into using Delphi with SOAP, moved to Delphi 8 and am now experimenting with SOAP again.

In general, the Delphi 7 standard components aren't very compatible with both the SOAP and the XML standards.

I'd advise you to ask for a refund, unless you think moving to Delphi 8 is a good answer. :-(

 

by: darrelloPosted on 2004-07-24 at 17:36:29ID: 11630338

perhaps I should point out that I wouldn't have to ask for a refund if no one answered my question!  :-)

 

by: moduloPosted on 2005-02-19 at 00:39:27ID: 13352462

PAQed with points refunded (500)

modulo
Community Support Moderator

20120131-EE-VQP-002

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