[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [wsbpel] Issue 197: Un-initializing BPEL variables
In XML empty is still a content. An empty text node contains zero characters. Different from nothing or null. For example, if I have the expression concat($X,$Y) it is valid for Y to be empty, and its reasonable for someone to set it to empty and be used. $Y needs to have a value in this case and the expression need to evaluate. Un-initialize will require its own construct, a) to not confuse between empty and null, and b) since we currently do not allow null to be selected. Assaf Tony Fletcher wrote: > This issue has been added to the wsbpel issue list with a status of > "received". The status will be changed to "open" if the TC accepts it > as identifying a bug in the spec or decides it should be accepted > specially. Otherwise it will be closed without further consideration > (but will be marked as "Revisitable") > > The issues list is posted as a Technical Committee document to the > OASIS WSBPEL TC pages > <http://www.oasis-open.org/apps/org/workgroup/wsbpel> on a regular > basis. The current edition, as a TC document, is the most recent > version of the document entitled in the "Issues" folder of the WSBPEL > TC document list > <http://www.oasis-open.org/apps/org/workgroup/wsbpel/documents.php> - > the next posting as a TC document will include this issue. The list > editor's working copy, which will normally include an issue when it is > announced, is available at this constant URL > <http://www.choreology.com/external/WS_BPEL_issues_list.html>. > > > ------------------------------------------------------------------------ > > > Issue 197: Un-initializing BPEL variables > > *Status:* received > *Date added:* 12 Mar 2005 > *Categories:* Data Handling > <http://www.choreology.com/external/WS_BPEL_issues_list.html#category_data_handling> > *Date submitted:* 11 March 2004 > *Submitter:* Yaron Y. Goland <mailto:ygoland@bea.com> > *Description:* Is it legal/possible to un-initialize a variable in > BPEL? What happens, for example, if one tries to assign a static from > value that is empty? Should we allow for from-spec to be empty and > have that mean that the target is uninitialized? > *Submitter’s proposal:* Being able to un-initialize variables is a > generically useful thing. It makes it clear when a variable doesn't > contain a 'useful' value. So I think we should provide a way to > un-initialize variables. > *Changes:* 12 Mar 2005 - new issue > > ------------------------------------------------------------------------ > Best Regards, > > Tony/ / > > / <http://www.choreology.com/>/ > > > > Tony Fletcher > > Technical Advisor > Choreology Ltd. > 68, Lombard Street, London EC3V 9L J UK > > Phone: > > > > +44 (0) 1473 729537 > > Mobile: > > > > +44 (0) 7801 948219// > > Fax: > > > > +44 (0) 870 7390077 > > Web: > > > > /www.choreology.com <http://www.choreology.com/>/ > > Cohesions™ > > Business transaction management software for application coordination > > Work: tony.fletcher@choreology.com > > Home: amfletcher@iee.org <mailto:amfletcher@iee.org> >
begin:vcard fn:Assaf Arkin n:Arkin;Assaf org:Intalio adr;dom:;;1000 Bridge Parkway Ste 210;Redwood City;CA;94065 email;internet:arkin@intalio.com title:Chief Architect tel;work:(650) 596-1800 x-mozilla-html:TRUE url:http://www.intalio.com version:2.1 end:vcard
S/MIME Cryptographic Signature
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]