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.NET Forum / ASP.NET / Web Services / December 2007WCF / J2EE interoperability - DataTable
My web service is based on WCF. One of the operations needs to return a two-dimensional data structure. May I return a DataTable without losing interoperability with J2EE ? Sincerely. Elyo Ravuna > My web service is based on WCF. One of the operations needs to return a > two-dimensional data structure. May I return a DataTable without losing > interoperability with J2EE ? Of course not. Does J2EE know about .NET objects at all?  Signature-------------------------------------------------------------------------------- John Saunders | MVP - Windows Server System - Connected System Developer Thank you for the answer, that's exactly what I thought. I can think of many workarounds but I would be very glad to hear the best-practices. Elyo Ravuna > > My web service is based on WCF. One of the operations needs to return a > > two-dimensional data structure. May I return a DataTable without losing > > interoperability with J2EE ? > > Of course not. Does J2EE know about .NET objects at all? =?Utf-8?B?RWx5byBSYXZ1bmE=?= <akora@community.nospam> wrote in news:FE56E18B-B0B8-44ED-9DCC-A2F92A0526F1@microsoft.com: > I can think of many workarounds but I would be very glad to hear the > best-practices. Send an array of DTOs (Data Transfer Objects) or an XML document. I usually like to use DTOs since most languages can parse them fine and thus save the prasing logic required for an XML document. Signaturespamhoneypot@rogers.com (Do not e-mail) Hi Elyo, Since .NET 2.0 datatable can be serialized into XML, I think you may pass it as a XML document/fragment to J2EE. However, it still require your J2EE client to be able to correctly parse the XML fragment. You may either use XML API or some XML-Object mapping framework to do this in J2EE. Anyway, directly return .NET object to heterogenious client is not recommended(no matter whether it is xml serializable or not). Sincerely, Steven Cheng Microsoft MSDN Online Support Lead This posting is provided "AS IS" with no warranties, and confers no rights. -------------------- From: =?Utf-8?B?RWx5byBSYXZ1bmE=?= <akora@community.nospam> References: <9B0E1E0E-4B87-4306-84AB-881AFDC46623@microsoft.com> <ezP7a6TOIHA.3940@TK2MSFTNGP05.phx.gbl> Subject: Re: WCF / J2EE interoperability - DataTable Date: Sat, 8 Dec 2007 03:56:01 -0800 Thank you for the answer, that's exactly what I thought. I can think of many workarounds but I would be very glad to hear the best-practices. Elyo Ravuna "John Saunders [MVP]" wrote: > > My web service is based on WCF. One of the operations needs to return a > > two-dimensional data structure. May I return a DataTable without losing > > interoperability with J2EE ? > > Of course not. Does J2EE know about .NET objects at all? ---------------------------------------------------------------------------- ---- > John Saunders | MVP - Windows Server System - Connected System Developer Steven is right - you should use XML to send your data rather than directly returning .NEt object. While sending data in XML if you are using SOAP then you should use SOAP encodings. SOAP encodings are standards and it has encoding for Arrays - which can be arrays of simple types as well as arrays of compound types. Thx, Manas Singh www.manassingh.com > Hi Elyo, > [quoted text clipped - 38 lines] > ---- > > John Saunders | MVP - Windows Server System - Connected System Developer Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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