JCR is just a Java API, so it's technically easy to “integrate” it with any other Java API-based standard (including JTA for transaction management). In contrast CMIS is far less less platform dependent and is designed primarily for “out of process” clients, both of which makes this kind of thing a fair bit more complex.
As I mentioned below, it would be technically possible for a given CMIS server to support this kind of thing as a proprietary extension, but I don’t know of any servers that have done so. It would probably involve something nasty like X/Open XA<http://pubs.opengroup.org/onlinepubs/009680699/toc.pdf> or similar, since you’re effectively managing distributed transactions at that point. I, for one, welcome our new stateless-favouring overlords. ;-) Cheers, Peter On 2014-10-30, at 7:42 AM, Joshy Augustine <joshymaugust...@gmail.com<mailto:joshymaugust...@gmail.com>> wrote: Thanks Peter. I was just considering the possibility of replacing a JSR 170 Compliant Repository with a CMIS Compliant one. From the documentation, it looks like JSR 170 Repository could potentially support transactions. Thanks, Joshy On Wed, Oct 29, 2014 at 3:03 PM, Peter Monks <peter.mo...@alfresco.com<mailto:peter.mo...@alfresco.com>> wrote: G’day Joshy, There is no such provision in the spec, although I believe it’s technically possible via proprietary extensions. I have no idea if any current servers offer this however (Alfresco doesn’t, for example). Interesting point of note - the 1.1 spec doesn’t even state whether individual services are atomic or not. It seems to be implied that they are (e.g. in sections 2.2.4.14 and 2.2.4.17), and I believe most current servers are implemented that way, but it was interesting to me that that isn’t explicitly defined anywhere. Cheers, Peter On 2014-10-29, at 2:06 AM, Joshy Augustine <joshymaugust...@gmail.com<mailto:joshymaugust...@gmail.com> <mailto:joshymaugust...@gmail.com>> wrote: Hi, I apologise if this is the incorrect forum to ask this question. Does anyone know if CMIS Specification mentions about Transactions? For example, is there any possibility for a CMIS Repository API Invocation to participate in a transaction started by the client of the API? Thanks, Joshy -- Cheers, Josh
