Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore="wait", It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint "pk_service_semaphore")
Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. ----- Original Message ----- > From: "Jacques Le Roux" <jacques.le.r...@les7arts.com> > To: user@ofbiz.apache.org > Sent: Thursday, June 17, 2010 1:25:34 PM > Subject: Re: Services semaphore attribute > Right, > https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide > > Simply type semaphore in the search box Jacopo implemented in the > OFBiz main page > > Jacques > > Scott Gray wrote: > > I'm pretty sure I documented this as part of the service engine > > guide in confluence. I don't have a link handy. > > > > Regards > > Scott > > > > On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: > > > >> Hi Chirag, > >> > >> I think you are looking to use the wait value of the semaphore > >> attribute. Beware of the timeout though... > >> You may combine with the other semaphore attributes if needed > >> <xs:attribute name="semaphore-wait-seconds" type="xs:int" > >> default="300"/> <xs:attribute name="semaphore-sleep" > >> type="xs:int" default="500"/> > >> > >> HTH > >> > >> Jacques > >> Please use rather the user MLfor such questions, thanks... > >> ----- Original Message ----- > >> From: Chirag Manocha > >> To: jacques.le.r...@les7arts.com > >> Sent: Thursday, June 17, 2010 9:11 AM > >> Subject: Services semaphore attribute > >> > >> > >> Hi Jacques, > >> Can you please tell me about semaphore attribute of service tag. > >> > >> The scenario is when I am getting multiple request(request is > >> calling a service) then I want the service to be called in > >> sequence rather than parallel, > >> > >> If you can provide some links to documentation that will be help, > >> > >> Thanks and Regards > >> -- Chirag Manocha > >> +91-98735-47457
