... There are non-idempotent state updates, like your comment example, and there are idempotent updates that set some datum to some specific value... since...
15805
Gervas
gervasdouglas
Apr 16, 2013 4:28 pm
Mark, this has the virtue of sounding logical. I guess you are competent when it comes to Pure Maths? Gervas...
15806
Steve Jones
jones.steveg
Apr 16, 2013 4:28 pm
To answer yourself and Gervas at the same time... Yup if it changes nothing with the same value then its mathematically idempotent. If it ever results in a...
15807
Steve Jones
jones.steveg
Apr 16, 2013 4:29 pm
I think its fine... ish. if the call order is f(1), f(1), f(2), f(1) f(1) and the state at the end of the first and second calls is the same, and the state at...
15808
Ashraf Galal
ashrafwg1
Apr 16, 2013 4:29 pm
Idempotency is a possible attribute of services. In the context of services, it means that multiple deliveries/processings of identical service calls cause no...
15809
Ashraf Galal
ashrafwg1
Apr 16, 2013 4:29 pm
Idempotency is a possible attribute of services. In the context of services, it means that multiple deliveries/processings of identical service calls cause no...
15810
Steve Jones
jones.steveg
Apr 16, 2013 6:01 pm
... I'm not sure on the second sentence here but reading capabilities don't have to be idempotent. 'getNextIterator()' is a reading capability that isn't...
15811
Udi Dahan
udidahan7
Apr 17, 2013 4:47 pm
I just wanted to chime in with some difficulties in the middleware / use an ID to deduplicate on the server side approach: ...
15812
Mark Baker
gonga_thrash
Apr 17, 2013 4:47 pm
Steve, ... That would be implementation idempotence (or lack thereof), agreed. But in the context of a discussion about distributed services, the word can only...
15813
Steve Jones
jones.steveg
Apr 17, 2013 11:24 pm
... This is where I think we'll differ as to me its not idempotent as a capability, it just presents behaviour that looks to be idempotent from the client but...
15814
Ashraf Galal
ashrafwg1
Apr 18, 2013 12:12 am
Idempotence is characteristic of servcie itself not its interface. The client need to get a proper response from the servcie and he doesn't care if the servcie...
15815
Gervas
gervasdouglas
Apr 19, 2013 9:30 am
http://newsle.com/article/0/70650798/ Gervas...
15816
David Tildesley
davotnz
Apr 19, 2013 11:19 pm
Hi Michael, You continue to be laboring under the illusion that attacking OO is in some unexplained way, a necessity to defending or promoting SOA as if they...
15817
Michael Poulin
m3poulin
Apr 21, 2013 9:23 pm
Hi David, You say "DDD and SOA are not mutually exclusive or in tension", and I totally agree with you on this. The only one point I try to make all this time...
15818
Steve Jones
jones.steveg
Apr 22, 2013 6:50 pm
Ok I'm going to disagree with one point here... "SOA requires that no one piece if code used for its implementation may cross physical service's boundaries;" ...
15819
Michael Poulin
m3poulin
Apr 23, 2013 1:17 pm
David, probably, I was not accurate enough: a code implementing a service A may be used in a service B as well but those service do not share the instance of...
15820
remyfannader
May 7, 2013 1:47 pm
Service Oriented Architectures point to an unified modeling paradigm that could ward off the risks of architecture silos bound to organization, methods or...
15821
Steve Jones
jones.steveg
May 8, 2013 12:00 pm
+1 to that, its why I think SOA as a business architecture approach with implementation left to a domain is key... almost a BPR 2.0 concept.... ...
15822
David Tildesley
davotnz
May 8, 2013 12:00 pm
Are you suggesting SOA bridging different domain ontologies? Shouldn't it be the service "owner" that gets to make their ontology the one in use for for their...
15823
Michael Poulin
m3poulin
May 8, 2013 6:53 pm
Yes, David, I agree with you that "the service "owner" that gets to make their ontology", but this does not prevent the same order to operate in multiple...
15824
Alexander Johannesen
shelterit
May 8, 2013 6:53 pm
Hi, Is there a translation of that PDF somewhere? My consultanteese is a bit rusty ... :) Anyway, could you explain the connection between "master data" and ...
15825
remyfannader
May 8, 2013 6:54 pm
That's the well known distinction between ontolologies and taxonomies, with their counterpart as objects and aspects. Services are published aspects which may...
15826
Steve Jones
jones.steveg
May 8, 2013 11:16 pm
Something needs to translate between ontologies and the key bits of translation are the master data, the 'things' that are communicated about. yes there are...
15827
Alexander Johannesen
shelterit
May 9, 2013 1:02 pm
... So, an ontology? ... Like? ... I'm concerned about the a) requirement of real-time, and b) how you actually do that. ... Could you get any vaguer? :) ...
15828
Ashraf Galal
ashrafwg1
May 9, 2013 1:04 pm
To answer your questions, let's first introduce some defintions that will help answer your questions. Semantic web aims to build a common framework that allows...
15829
remyfannader
May 9, 2013 7:21 pm
The challenge with RT requirements is to maintain the distinction between functional constraints on one hand, architecture capabilities on the other hand. With...
15830
Gervas Douglas
gervasdouglas
May 9, 2013 8:54 pm
Cloud Computing: Rethinking Control of IT Document ID: | Document Type: ZapFlash By: /Jason Bloomberg/ | Posted: /April 24, 2013/ In my role as a globetrotting...
15831
Gervas Douglas
gervasdouglas
May 9, 2013 8:54 pm
Forecasting the Cloud Market: How the Sausage is Made Document ID: | Document Type: ZapFlash By: /Jason Bloomberg/ | Posted: /May 9, 2013/ Before I joined...
15832
Michael Poulin
m3poulin
May 10, 2013 1:35 pm
In the last decades of Soviet Union, communists were busy with creating problems that they then heroically overcome. I have to tell you, it is a very...
15833
Steve Jones
jones.steveg
May 10, 2013 3:07 pm
In 5-10 years businesses will consider building private clouds in the same way as they consider building private telephone networks today. Compute and Storage...
