It wont be so much the existing functions that will change, its
more that there will be new ones added.
My question is, if/when a new function is added, how does the calling
exe know that its ok to call it? From what I have seen, when you add a
reference to a webservice, it creates a new PAS file that has all the
functions etc in it, and therefor this is compiled into the exe, so if I add
new functions one would assume that a new calling exe needs to be
updated....which is what I want to avoid.
Jeremy
-----Original Message-----
From: "Sean Cross - CRM" <[EMAIL PROTECTED]>
To: "NZ Borland Developers Group - Delphi List" <[email protected]>
Date: Fri, 26 May 2006 09:02:21 +1200
Subject: RE: [DUG] Web Services
The point of web services is that they are language and platform agonistic. Therefore you can call a d.n web service from D7 etc. The restriction is that the web service must only require parameters and results that D7 can support. it is possible to make a .net web service that only .net can call (thanks ms) but it is as easy to make one that anything can accept. You might also want to look at using REST, http://blog.marcocantu.com/blog/soaprest.html.I believe it is considered bad form to change the spec of existing functions much as it is in dlls. You should version them instead. Adding a new function won't affect existing apps though.Regards
Sean
-----------------------------
Sean Cross
Systems Development
Catalyst Risk Management
PO Box 230
Napier
Phone: 06 835 5868
Mobile: 027 276 6439
Email: [EMAIL PROTECTED]
http://www.crm.co.nz/
Offices in Auckland, Napier, Wellington & Christchurch
Disclaimer:
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeremy Coulter
Sent: Friday, 26 May 2006 8:06 a.m.
To: [email protected]
Subject: [DUG] Web Services
Hi All.We are looking at improving some stuff at work, and web services will be something I feel will help greatly.What A interested in knowing is, am I correct in understanding that Delphi 7 can talk to a D2005 .Net webservice?If the above understanding is correct, if I make a change to the web service, then I need to also change the exe calling the webservice? i.e. if I add new functon t the webservice, then the caling exe needs to know abou it etc. etc.is this correct?Thanks, jeremy
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