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Subject: RE: [wsbpel] Issue 7 - approved proposal.
There should also be language mandating that if the namespace of the underlying file is different than specified, the location doesn't resolve or the importType doesn't actually match the contents of the file then this problem must be caught statically and an unspecified static error raised. > -----Original Message----- > From: Francisco Curbera [mailto:curbera@us.ibm.com] > Sent: Wednesday, October 15, 2003 11:49 PM > To: 'wsbpel@lists.oasis-open.org' > Subject: RE: [wsbpel] Issue 7 - approved proposal. > > > > > > > > Here is the updated text of the proposal we approved in > yesterday's call: > > Introduce a single <bpel:import> element used to import XSD, WSDL > definitions. Zero or more <bpel:import> elements may appear as first > children of the <bpel:process> element. Three required > attributes must be: > > - "namespace": target namespace being imported > - "location": where to find the imported information > - "importType": identifies the type of document being > imported by providing > the URI of the encoding language: either > "http://www.w3.org/2001/XMLSchema"; > or "http://schemas.xmlsoap.org/wsdl/";. > > For example: > > <bpel:import namespace="..." location="document-location" > importType="XYZ-namespace-uri"/> > > A <bpel:import> import element will be interpreted as a hint for BPEL > processors. In particular, processors are not required to retrieve the > imported document from the specified location. > > > > > > > > > Francisco > > Curbera/Watson/IB To: > "Liu, Kevin" <kevin.liu@sap.com> > > M@IBMUS cc: > "'wsbpel@lists.oasis-open.org'" > <wsbpel@lists.oasis-open.org>, > > "'ygoland@bea.com'" <ygoland@bea.com> > > 10/01/2003 12:27 Subject: RE: > [wsbpel] Issue 7 - possible resolution > AM > > > > > > > > > > > > Kevin, > > Thanks for the catch! I intended to say "namespace", not > "targetNamespace". > Please consider my proposal modified accordingly. > > Paco > > > > "Liu, Kevin" > > <kevin.liu@sap.co To: > "'ygoland@bea.com'" <ygoland@bea.com>, Francisco > m> > Curbera/Watson/IBM@IBMUS, > "'wsbpel@lists.oasis-open.org'" > > <wsbpel@lists.oasis-open.org> > > 09/30/2003 10:33 cc: > > PM Subject: RE: > [wsbpel] Issue > 7 - possible resolution > > > > > > I like option 1 better with one modification. > > Following the XSD and WSDL import model, I would prefer that the > "targetNamespace" attribute be re-named to "namespace" which > identify the > namespace of the file being imported. > > Best Regards, > Kevin > > > -----Original Message----- > From: Yaron Goland [mailto:ygoland@bea.com] > Sent: Tuesday, September 30, 2003 9:58 AM > To: 'Francisco Curbera'; wsbpel@lists.oasis-open.org > Subject: RE: [wsbpel] Issue 7 - possible resolution > > Keep in mind that even in option 1 it will be necessary for > the processor > to > validate the file's contents. Just because someone says > something is a WSDL > file doesn't mean it is. > > Also, why do we need the targetNamespace declaration on the import > statement? The files themselves define their namespaces. > > Yaron > > > -----Original Message----- > > From: Francisco Curbera [mailto:curbera@us.ibm.com] > > Sent: Tuesday, September 30, 2003 9:23 AM > > To: wsbpel@lists.oasis-open.org > > Subject: [wsbpel] Issue 7 - possible resolution > > > > > > > > > > > > > > As agreed at the last f2f, my proposed resolution of issue 7 > > is described > > below (#1.) Based on that discussion, we can consider a > > second flavors of > > the proposal, described in #2. I suggest we adopt one of them > > (#1 is my > > preference) and close this issue. > > > > 1. Introduce a single <bpel:import> element used to import > XSD, WSDL > > definitions. Zero or more <bpel:import> elements may appear as first > > children of the <bpel:process> element. Three required > > attributes must be > > included on each <bpel:import> element: > > > > - targetNamespace being imported > > - location: where to find the imported information > > - importType: identifies the type of document being imported > > by providing > > the URI of the encoding language: either > > "http://www.w3.org/2001/XMLSchema > > ", or "http://schemas.xmlsoap.org/wsdl/";. > > > > <bpel:import targetNamespace="..." location="... document > > location ..." > > importType="XYZ-namespace-uri/> > > > > 2. The alternate version of the eliminates the importType attribute. > > > > What is the difference? In option 2, a BPEL processor finds > > and import and > > retrieves the target document without knowing what kind of > > document that > > is. The processor must open and inspect the document in order > > to figure out > > how to process it. On discovering the type of the root > > element inside the > > document, the processor will be able to dispatch a Schema or > > WSDL processor > > to consume the document (which will in turn read the > document and now > > actually process it.) In option 1, the BPEL processor has not > > need to read > > in the target document, it can just handle the job to the > appropriate > > (Schema or WSDL) processor. Otherwise proposals are > > equivalent, of course. > > > > > > > > > > To unsubscribe from this mailing list (and be removed from > > the roster of the OASIS TC), go to > > http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/le > > ave_workgroup.php. > > > > > > > To unsubscribe from this mailing list (and be removed from > the roster of > the OASIS TC), go to > http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/le > ave_workgroup.php > > . > > To unsubscribe from this mailing list (and be removed from > the roster of > the OASIS TC), go to > http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/le > ave_workgroup.php > > . > > > > > To unsubscribe from this mailing list (and be removed from > the roster of > the OASIS TC), go to > http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/le > ave_workgroup.php > . > > > > > To unsubscribe from this mailing list (and be removed from > the roster of the OASIS TC), go to > http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/le > ave_workgroup.php. > >
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