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Steffen Märcker

[vwnc] XML marshalling problem

Hi,

I am facing some trouble with the XML marshalling framework. The
documentation says that it handles references, particularly forward
references. Unless I've made a mistake, it doesn't in the following
example.
All necessary code and a ready-to-use image is available here:
http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
(open the image or load the parcel or file in .st)
Please execute the workspace code at first without the second unmarshal
message and inspect the result. Diving into ID6 (ColoredPetriNet) brings
up 5 transitions. '+' indicates, that the should have a subgraph, but the
corresponding structure ist empty. If you execute both unmarshalling
messages, the references to the subnets are beeing resolved as intended.
Has anybody an idea what goes wrong?

Greetings,
Steffen Märcker
_______________________________________________
vwnc mailing list
[hidden email]
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Gregory Bourassa-3

Re: [vwnc] XML marshalling problem

Steffen,

I ran your image and executed the workspace expressions, reproducing the
behaviour you describe.

The 'references' you are describing, I am assuming to be the XML
attributes of type ID. Is that correct?

You really need someone who has used this same DTD and schema as well as
the VisualWorks tools; although that is not me, here are some
observations which may or may not help.

1) I do not see that the processor is really getting access to the DTD
listed in your XML file. It certainly isn't on my system. So if
"page" is a type IDREF attribute of "instance" elements, the marshaller
will not have that information.

2) ID6 is the id of a page. It is referenced from an "instance"
element through that one's "page" attribute. Are you sure that there
is really a problem in the marshalling? Maybe the page is not supposed
to be fleshed out until it is referenced? (And that happens incidentally
as a side-effect of the second marshalling?) This is a CPN question,
and I have no knowledge of CPN tools.

Regards.

Gregory Bourassa
=============================================

Steffen Märcker wrote:

> Hi,
>
> I am facing some trouble with the XML marshalling framework. The
> documentation says that it handles references, particularly forward
> references. Unless I've made a mistake, it doesn't in the following
> example.
> All necessary code and a ready-to-use image is available here:
> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
> (open the image or load the parcel or file in .st)
> Please execute the workspace code at first without the second unmarshal
> message and inspect the result. Diving into ID6 (ColoredPetriNet) brings
> up 5 transitions. '+' indicates, that the should have a subgraph, but the
> corresponding structure ist empty. If you execute both unmarshalling
> messages, the references to the subnets are beeing resolved as intended.
> Has anybody an idea what goes wrong?
>
> Greetings,
> Steffen Märcker
> _______________________________________________
> vwnc mailing list
> [hidden email]
> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
>
>

Gregory Bourassa-3

Re: [vwnc] XML marshalling problem

In reply to this post by Steffen Märcker

Steffen,

Please bear with me, as my only toe-hold in this is the XML and DTD
part. I have not used the WebServices marshaller.

Having a closer look at your binding.xml, but unable to browse your
code because the source files are missing, it occurs to me that the
marshaller may not in fact be able to resolve all the forward references.

The mapping from your XML to the object model:

page --> ColoredPetriNet
trans --> CPNTransition

ColoredPetriNet holds a collection of CPNTransitions in its
"transitions" instance variable.

Note that your Schema maps page's child element "trans" to
ColoredPetriNet's instance variable "transitions". It mentions the
selector "addTransitions:" for Smalltalk to use in setting this. This
seems to work well, and gives you the collection of CPNTransition
objects on the first marshalling.

On the other hand, the Schema maps trans's child element "subst" not to
an existing instance variable of CPNTransition (which would be
"subgraph"), but instead to the Webservices.Struct called subnetStruct,
and gives no Smalltalk selector for setting that. This may be related
to the problem with the forward references.

I am not very familiar with the object marshaller's Schemas. Maybe the
schema could be tightened up to give you the result you want. It may
need a "setter" method on CPNTransition, and the corresponding
correction of the schema definition for <object name="trans"...

G.B.

Steffen Märcker wrote:

Steffen Märcker

Re: [vwnc] XML marshalling problem

Hi Gregory,

I've tested your suggestions and cleaned up the example. It turns out,
that specifying the getters and setters does not make any difference - the
problems remain. Furthermore it depends neither on the use of struct nor
object in the binding. (I've added both to binding.xml). Is it a bug or my
fault?
Attached you will find a simplified version of the test case. Please load
"HTTP" and "XMLObjectMarshalers" into a clean image, then file in "CPN
Tools.st". "X2O - marshalling.ws" contains all necessary code to unmarshal
"CPN Claims Process.xml".
Inspect the results:
-> 1 -> value -> 'ID6' -> transitions
Each transition labeled with $+ should hold a struct with a "graph"
object. But this works only after unmarshalling the second time.

Steffen

Am 17.03.2009, 21:18 Uhr, schrieb Gregory Bourassa <[hidden email]>:

> Steffen,
>
> Please bear with me, as my only toe-hold in this is the XML and DTD
> part. I have not used the WebServices marshaller.
>
> Having a closer look at your binding.xml, but unable to browse your
> code because the source files are missing, it occurs to me that the
> marshaller may not in fact be able to resolve all the forward references.
>
> The mapping from your XML to the object model:
>
> page --> ColoredPetriNet
> trans --> CPNTransition
>
> ColoredPetriNet holds a collection of CPNTransitions in its
> "transitions" instance variable.
>
> Note that your Schema maps page's child element "trans" to
> ColoredPetriNet's instance variable "transitions". It mentions the
> selector "addTransitions:" for Smalltalk to use in setting this. This
> seems to work well, and gives you the collection of CPNTransition
> objects on the first marshalling.
>
> On the other hand, the Schema maps trans's child element "subst" not to
> an existing instance variable of CPNTransition (which would be
> "subgraph"), but instead to the Webservices.Struct called subnetStruct,
> and gives no Smalltalk selector for setting that. This may be related
> to the problem with the forward references.
>
> I am not very familiar with the object marshaller's Schemas. Maybe the
> schema could be tightened up to give you the result you want. It may
> need a "setter" method on CPNTransition, and the corresponding
> correction of the schema definition for <object name="trans"...
>
> G.B.
>
>
>
>
> Steffen Märcker wrote:
>> Hi,
>>
>> I am facing some trouble with the XML marshalling framework. The
>> documentation says that it handles references, particularly forward
>> references. Unless I've made a mistake, it doesn't in the following
>> example.
>> All necessary code and a ready-to-use image is available here:
>> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
>> (open the image or load the parcel or file in .st)
>> Please execute the workspace code at first without the second unmarshal
>> message and inspect the result. Diving into ID6 (ColoredPetriNet) brings
>> up 5 transitions. '+' indicates, that the should have a subgraph, but
>> the
>> corresponding structure ist empty. If you execute both unmarshalling
>> messages, the references to the subnets are beeing resolved as intended.
>> Has anybody an idea what goes wrong?
>>
>> Greetings,
>> Steffen Märcker
>> _______________________________________________
>> vwnc mailing list
>> [hidden email]
>> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
>>
>>
>
>
> -----------------------------------------
> Key Technology, Inc. Disclaimer Notice - The information and
> attachment(s) contained in this communication are intended for the
> addressee only, and may be confidential and/or legally privileged.
> If you have received this communication in error, please contact
> the sender immediately, and delete this communication from any
> computer or network system. Any interception, review, printing,
> copying, re-transmission, dissemination, or other use of, or taking
> of any action upon this information by persons or entities other
> than the intended recipient is strictly prohibited by law and may
> subject them to criminal or civil liability. Key Technology, Inc.
> is not liable for the improper and/or incomplete transmission of
> the information contained in this communication or for any delay in
> its receipt.

_______________________________________________
vwnc mailing list
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http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

CPN_Tool - XML.zip (38K) Download Attachment

thomas.hawker

Re: [vwnc] XML marshalling problem

In reply to this post by Gregory Bourassa-3

Steffen,

There is a shared variable, XMLObjectMarshalingManager.UseReferences, that controls whether references are processed during marshaling. I'm not sure what the default is, but think it's "false". You can use the accessors on the class side to change it, such as:

WebServices.XMLObjectMarshalingManager setUseReferences

That might help the situation.

Cheers!

Tom Hawker
--------------------------
Senior Framework Developer
--------------------------
Home +1 (408) 274-4128
Office +1 (408) 576-6591
Mobile +1 (408) 835-3643

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Gregory Bourassa
Sent: Tuesday, March 17, 2009 1:18 PM
To: Steffen Märcker
Cc: vwnc
Subject: Re: [vwnc] XML marshalling problem

Steffen,

Please bear with me, as my only toe-hold in this is the XML and DTD
part. I have not used the WebServices marshaller.

Having a closer look at your binding.xml, but unable to browse your
code because the source files are missing, it occurs to me that the
marshaller may not in fact be able to resolve all the forward references.

The mapping from your XML to the object model:

page --> ColoredPetriNet
trans --> CPNTransition

ColoredPetriNet holds a collection of CPNTransitions in its
"transitions" instance variable.

Note that your Schema maps page's child element "trans" to
ColoredPetriNet's instance variable "transitions". It mentions the
selector "addTransitions:" for Smalltalk to use in setting this. This
seems to work well, and gives you the collection of CPNTransition
objects on the first marshalling.

On the other hand, the Schema maps trans's child element "subst" not to
an existing instance variable of CPNTransition (which would be
"subgraph"), but instead to the Webservices.Struct called subnetStruct,
and gives no Smalltalk selector for setting that. This may be related
to the problem with the forward references.

I am not very familiar with the object marshaller's Schemas. Maybe the
schema could be tightened up to give you the result you want. It may
need a "setter" method on CPNTransition, and the corresponding
correction of the schema definition for <object name="trans"...

G.B.

Steffen Märcker wrote:

-----------------------------------------
Key Technology, Inc. Disclaimer Notice - The information and
attachment(s) contained in this communication are intended for the
addressee only, and may be confidential and/or legally privileged.
If you have received this communication in error, please contact
the sender immediately, and delete this communication from any
computer or network system. Any interception, review, printing,
copying, re-transmission, dissemination, or other use of, or taking
of any action upon this information by persons or entities other
than the intended recipient is strictly prohibited by law and may
subject them to criminal or civil liability. Key Technology, Inc.
is not liable for the improper and/or incomplete transmission of
the information contained in this communication or for any delay in
its receipt.
_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

IMPORTANT NOTICE
Email from OOCL is confidential and may be legally privileged. If it is not intended for you, please delete it immediately unread. The internet cannot guarantee that this communication is free of viruses, interception or interference and anyone who communicates with us by email is taken to accept the risks in doing so. Without limitation, OOCL and its affiliates accept no liability whatsoever and howsoever arising in connection with the use of this email. Under no circumstances shall this email constitute a binding agreement to carry or for provision of carriage services by OOCL, which is subject to the availability of carrier's equipment and vessels and the terms and conditions of OOCL's standard bill of lading which is also available at http://www.oocl.com.

_______________________________________________
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Steffen Märcker

Re: [vwnc] XML marshalling problem

Hi Tom,

my examples include the following lines:

manager := WebServices.XMLObjectMarshalingManager on: binding.
manager
useInlineType: true;
useReference: true.

I thought this would do the job but tried your proposal too. Unforunately
it doesn't work.

THX, Steffen

Am 18.03.2009, 17:57 Uhr, schrieb <[hidden email]>:

> Steffen,
>
> There is a shared variable, XMLObjectMarshalingManager.UseReferences,
> that controls whether references are processed during marshaling. I'm
> not sure what the default is, but think it's "false". You can use the
> accessors on the class side to change it, such as:
>
> WebServices.XMLObjectMarshalingManager setUseReferences
>
> That might help the situation.
>
> Cheers!
> Tom Hawker
> --------------------------
> Senior Framework Developer
> --------------------------
> Home +1 (408) 274-4128
> Office +1 (408) 576-6591
> Mobile +1 (408) 835-3643
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On
> Behalf Of Gregory Bourassa
> Sent: Tuesday, March 17, 2009 1:18 PM
> To: Steffen Märcker
> Cc: vwnc
> Subject: Re: [vwnc] XML marshalling problem
>
> Steffen,
>
> Please bear with me, as my only toe-hold in this is the XML and DTD
> part. I have not used the WebServices marshaller.
>
> Having a closer look at your binding.xml, but unable to browse your
> code because the source files are missing, it occurs to me that the
> marshaller may not in fact be able to resolve all the forward references.
>
> The mapping from your XML to the object model:
>
> page --> ColoredPetriNet
> trans --> CPNTransition
>
> ColoredPetriNet holds a collection of CPNTransitions in its
> "transitions" instance variable.
>
> Note that your Schema maps page's child element "trans" to
> ColoredPetriNet's instance variable "transitions". It mentions the
> selector "addTransitions:" for Smalltalk to use in setting this. This
> seems to work well, and gives you the collection of CPNTransition
> objects on the first marshalling.
>
> On the other hand, the Schema maps trans's child element "subst" not to
> an existing instance variable of CPNTransition (which would be
> "subgraph"), but instead to the Webservices.Struct called subnetStruct,
> and gives no Smalltalk selector for setting that. This may be related
> to the problem with the forward references.
>
> I am not very familiar with the object marshaller's Schemas. Maybe the
> schema could be tightened up to give you the result you want. It may
> need a "setter" method on CPNTransition, and the corresponding
> correction of the schema definition for <object name="trans"...
>
> G.B.
>
>
>
>
> Steffen Märcker wrote:
>> Hi,
>>
>> I am facing some trouble with the XML marshalling framework. The
>> documentation says that it handles references, particularly forward
>> references. Unless I've made a mistake, it doesn't in the following
>> example.
>> All necessary code and a ready-to-use image is available here:
>> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
>> (open the image or load the parcel or file in .st)
>> Please execute the workspace code at first without the second unmarshal
>> message and inspect the result. Diving into ID6 (ColoredPetriNet) brings
>> up 5 transitions. '+' indicates, that the should have a subgraph, but
>> the
>> corresponding structure ist empty. If you execute both unmarshalling
>> messages, the references to the subnets are beeing resolved as intended.
>> Has anybody an idea what goes wrong?
>>
>> Greetings,
>> Steffen Märcker
>> _______________________________________________
>> vwnc mailing list
>> [hidden email]
>> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
>>
>>
>
>
> -----------------------------------------
> Key Technology, Inc. Disclaimer Notice - The information and
> attachment(s) contained in this communication are intended for the
> addressee only, and may be confidential and/or legally privileged.
> If you have received this communication in error, please contact
> the sender immediately, and delete this communication from any
> computer or network system. Any interception, review, printing,
> copying, re-transmission, dissemination, or other use of, or taking
> of any action upon this information by persons or entities other
> than the intended recipient is strictly prohibited by law and may
> subject them to criminal or civil liability. Key Technology, Inc.
> is not liable for the improper and/or incomplete transmission of
> the information contained in this communication or for any delay in
> its receipt.
> _______________________________________________
> vwnc mailing list
> [hidden email]
> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
>
> IMPORTANT NOTICE
> Email from OOCL is confidential and may be legally privileged. If it is
> not intended for you, please delete it immediately unread. The internet
> cannot guarantee that this communication is free of viruses,
> interception or interference and anyone who communicates with us by
> email is taken to accept the risks in doing so. Without limitation,
> OOCL and its affiliates accept no liability whatsoever and howsoever
> arising in connection with the use of this email. Under no
> circumstances shall this email constitute a binding agreement to carry
> or for provision of carriage services by OOCL, which is subject to the
> availability of carrier's equipment and vessels and the terms and
> conditions of OOCL's standard bill of lading which is also available at
> http://www.oocl.com.

_______________________________________________
vwnc mailing list
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http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

Kogan, Tamara

Re: [vwnc] XML marshalling problem

In reply to this post by Steffen Märcker

Steffen,

It looks like there is a bug in XMLObjectMarshalingManager>>addKey:value:

Could you, please, try the fix from the attached file and let me know if it works?

Thanks,
Tamara Kogan
Smalltalk development,
Cincom Systems

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Steffen Märcker
> Sent: Wednesday, March 18, 2009 10:49 AM
> To: Gregory Bourassa
> Cc: vwnc
> Subject: Re: [vwnc] XML marshalling problem
>
> Hi Gregory,
>
> I've tested your suggestions and cleaned up the example. It
> turns out,
> that specifying the getters and setters does not make any
> difference - the
> problems remain. Furthermore it depends neither on the use of
> struct nor
> object in the binding. (I've added both to binding.xml). Is
> it a bug or my
> fault?
> Attached you will find a simplified version of the test case.
> Please load
> "HTTP" and "XMLObjectMarshalers" into a clean image, then
> file in "CPN
> Tools.st". "X2O - marshalling.ws" contains all necessary code
> to unmarshal
> "CPN Claims Process.xml".
> Inspect the results:
> -> 1 -> value -> 'ID6' -> transitions
> Each transition labeled with $+ should hold a struct with a "graph"
> object. But this works only after unmarshalling the second time.
>
> Steffen
>
>
> Am 17.03.2009, 21:18 Uhr, schrieb Gregory Bourassa
> <[hidden email]>:
>
> > Steffen,
> >
> > Please bear with me, as my only toe-hold in this is the XML
> and DTD
> > part. I have not used the WebServices marshaller.
> >
> > Having a closer look at your binding.xml, but unable to
> browse your
> > code because the source files are missing, it occurs to me
> that the
> > marshaller may not in fact be able to resolve all the
> forward references.
> >
> > The mapping from your XML to the object model:
> >
> > page --> ColoredPetriNet
> > trans --> CPNTransition
> >
> > ColoredPetriNet holds a collection of CPNTransitions in its
> > "transitions" instance variable.
> >
> > Note that your Schema maps page's child element "trans" to
> > ColoredPetriNet's instance variable "transitions". It
> mentions the
> > selector "addTransitions:" for Smalltalk to use in setting
> this. This
> > seems to work well, and gives you the collection of CPNTransition
> > objects on the first marshalling.
> >
> > On the other hand, the Schema maps trans's child element
> "subst" not to
> > an existing instance variable of CPNTransition (which would be
> > "subgraph"), but instead to the Webservices.Struct called
> subnetStruct,
> > and gives no Smalltalk selector for setting that. This
> may be related
> > to the problem with the forward references.
> >
> > I am not very familiar with the object marshaller's
> Schemas. Maybe the
> > schema could be tightened up to give you the result you
> want. It may
> > need a "setter" method on CPNTransition, and the corresponding
> > correction of the schema definition for <object name="trans"...
> >
> > G.B.
> >
> >
> >
> >
> > Steffen Märcker wrote:
> >> Hi,
> >>
> >> I am facing some trouble with the XML marshalling framework. The
> >> documentation says that it handles references, particularly forward
> >> references. Unless I've made a mistake, it doesn't in the following
> >> example.
> >> All necessary code and a ready-to-use image is available here:
> >> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
> >> (open the image or load the parcel or file in .st)
> >> Please execute the workspace code at first without the
> second unmarshal
> >> message and inspect the result. Diving into ID6
> (ColoredPetriNet) brings
> >> up 5 transitions. '+' indicates, that the should have a
> subgraph, but
> >> the
> >> corresponding structure ist empty. If you execute both
> unmarshalling
> >> messages, the references to the subnets are beeing
> resolved as intended.
> >> Has anybody an idea what goes wrong?
> >>
> >> Greetings,
> >> Steffen Märcker
> >> _______________________________________________
> >> vwnc mailing list
> >> [hidden email]
> >> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
> >>
> >>
> >
> >
> > -----------------------------------------
> > Key Technology, Inc. Disclaimer Notice - The information and
> > attachment(s) contained in this communication are intended for the
> > addressee only, and may be confidential and/or legally privileged.
> > If you have received this communication in error, please contact
> > the sender immediately, and delete this communication from any
> > computer or network system. Any interception, review, printing,
> > copying, re-transmission, dissemination, or other use of, or taking
> > of any action upon this information by persons or entities other
> > than the intended recipient is strictly prohibited by law and may
> > subject them to criminal or civil liability. Key Technology, Inc.
> > is not liable for the improper and/or incomplete transmission of
> > the information contained in this communication or for any delay in
> > its receipt.
>
>

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

XMLObjectMarshalingManager-addKeyvalue.zip (858 bytes) Download Attachment

Steffen Märcker

Re: [vwnc] XML marshalling problem

Hi Tamara,

thank you for this fix. I've tested it successfully with two input files -
all problems gone.
Btw, is it advisable to load the current XMLObjectMarshallers packege from
Store into a 7.6 image? And will there be a (more) complete documentation
of the XMl binding format, e.g. an XML Schema, available?

Greetings!
Steffen Märcker

Am 19.03.2009, 02:14 Uhr, schrieb Kogan, Tamara <[hidden email]>:

> Steffen,
>
> It looks like there is a bug in XMLObjectMarshalingManager>>addKey:value:
>
> Could you, please, try the fix from the attached file and let me know if
> it works?
>
> Thanks,
> Tamara Kogan
> Smalltalk development,
> Cincom Systems
>
>> -----Original Message-----
>> From: [hidden email]
>> [mailto:[hidden email]] On Behalf Of Steffen Märcker
>> Sent: Wednesday, March 18, 2009 10:49 AM
>> To: Gregory Bourassa
>> Cc: vwnc
>> Subject: Re: [vwnc] XML marshalling problem
>>
>> Hi Gregory,
>>
>> I've tested your suggestions and cleaned up the example. It
>> turns out,
>> that specifying the getters and setters does not make any
>> difference - the
>> problems remain. Furthermore it depends neither on the use of
>> struct nor
>> object in the binding. (I've added both to binding.xml). Is
>> it a bug or my
>> fault?
>> Attached you will find a simplified version of the test case.
>> Please load
>> "HTTP" and "XMLObjectMarshalers" into a clean image, then
>> file in "CPN
>> Tools.st". "X2O - marshalling.ws" contains all necessary code
>> to unmarshal
>> "CPN Claims Process.xml".
>> Inspect the results:
>> -> 1 -> value -> 'ID6' -> transitions
>> Each transition labeled with $+ should hold a struct with a "graph"
>> object. But this works only after unmarshalling the second time.
>>
>> Steffen
>>
>>
>> Am 17.03.2009, 21:18 Uhr, schrieb Gregory Bourassa
>> <[hidden email]>:
>>
>> > Steffen,
>> >
>> > Please bear with me, as my only toe-hold in this is the XML
>> and DTD
>> > part. I have not used the WebServices marshaller.
>> >
>> > Having a closer look at your binding.xml, but unable to
>> browse your
>> > code because the source files are missing, it occurs to me
>> that the
>> > marshaller may not in fact be able to resolve all the
>> forward references.
>> >
>> > The mapping from your XML to the object model:
>> >
>> > page --> ColoredPetriNet
>> > trans --> CPNTransition
>> >
>> > ColoredPetriNet holds a collection of CPNTransitions in its
>> > "transitions" instance variable.
>> >
>> > Note that your Schema maps page's child element "trans" to
>> > ColoredPetriNet's instance variable "transitions". It
>> mentions the
>> > selector "addTransitions:" for Smalltalk to use in setting
>> this. This
>> > seems to work well, and gives you the collection of CPNTransition
>> > objects on the first marshalling.
>> >
>> > On the other hand, the Schema maps trans's child element
>> "subst" not to
>> > an existing instance variable of CPNTransition (which would be
>> > "subgraph"), but instead to the Webservices.Struct called
>> subnetStruct,
>> > and gives no Smalltalk selector for setting that. This
>> may be related
>> > to the problem with the forward references.
>> >
>> > I am not very familiar with the object marshaller's
>> Schemas. Maybe the
>> > schema could be tightened up to give you the result you
>> want. It may
>> > need a "setter" method on CPNTransition, and the corresponding
>> > correction of the schema definition for <object name="trans"...
>> >
>> > G.B.
>> >
>> >
>> >
>> >
>> > Steffen Märcker wrote:
>> >> Hi,
>> >>
>> >> I am facing some trouble with the XML marshalling framework. The
>> >> documentation says that it handles references, particularly forward
>> >> references. Unless I've made a mistake, it doesn't in the following
>> >> example.
>> >> All necessary code and a ready-to-use image is available here:
>> >> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
>> >> (open the image or load the parcel or file in .st)
>> >> Please execute the workspace code at first without the
>> second unmarshal
>> >> message and inspect the result. Diving into ID6
>> (ColoredPetriNet) brings
>> >> up 5 transitions. '+' indicates, that the should have a
>> subgraph, but
>> >> the
>> >> corresponding structure ist empty. If you execute both
>> unmarshalling
>> >> messages, the references to the subnets are beeing
>> resolved as intended.
>> >> Has anybody an idea what goes wrong?
>> >>
>> >> Greetings,
>> >> Steffen Märcker
>> >> _______________________________________________
>> >> vwnc mailing list
>> >> [hidden email]
>> >> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
>> >>
>> >>
>> >
>> >
>> > -----------------------------------------
>> > Key Technology, Inc. Disclaimer Notice - The information and
>> > attachment(s) contained in this communication are intended for the
>> > addressee only, and may be confidential and/or legally privileged.
>> > If you have received this communication in error, please contact
>> > the sender immediately, and delete this communication from any
>> > computer or network system. Any interception, review, printing,
>> > copying, re-transmission, dissemination, or other use of, or taking
>> > of any action upon this information by persons or entities other
>> > than the intended recipient is strictly prohibited by law and may
>> > subject them to criminal or civil liability. Key Technology, Inc.
>> > is not liable for the improper and/or incomplete transmission of
>> > the information contained in this communication or for any delay in
>> > its receipt.
>>
>>

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Kogan, Tamara

Re: [vwnc] XML marshalling problem

I would suggest to load the WebServices bundle latest trunk version but not separate packages.

Tamara Kogan
Smalltalk development,
Cincom Systems

> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]]
> Sent: Thursday, March 19, 2009 11:27 AM
> To: Kogan, Tamara
> Cc: vwnc
> Subject: Re: [vwnc] XML marshalling problem
>
> Hi Tamara,
>
> thank you for this fix. I've tested it successfully with two
> input files -
> all problems gone.
> Btw, is it advisable to load the current XMLObjectMarshallers
> packege from
> Store into a 7.6 image? And will there be a (more) complete
> documentation
> of the XMl binding format, e.g. an XML Schema, available?
>
> Greetings!
> Steffen Märcker
>
>
> Am 19.03.2009, 02:14 Uhr, schrieb Kogan, Tamara <[hidden email]>:
>
> > Steffen,
> >
> > It looks like there is a bug in
> XMLObjectMarshalingManager>>addKey:value:
> >
> > Could you, please, try the fix from the attached file and
> let me know if
> > it works?
> >
> > Thanks,
> > Tamara Kogan
> > Smalltalk development,
> > Cincom Systems
> >
> >> -----Original Message-----
> >> From: [hidden email]
> >> [mailto:[hidden email]] On Behalf Of Steffen Märcker
> >> Sent: Wednesday, March 18, 2009 10:49 AM
> >> To: Gregory Bourassa
> >> Cc: vwnc
> >> Subject: Re: [vwnc] XML marshalling problem
> >>
> >> Hi Gregory,
> >>
> >> I've tested your suggestions and cleaned up the example. It
> >> turns out,
> >> that specifying the getters and setters does not make any
> >> difference - the
> >> problems remain. Furthermore it depends neither on the use of
> >> struct nor
> >> object in the binding. (I've added both to binding.xml). Is
> >> it a bug or my
> >> fault?
> >> Attached you will find a simplified version of the test case.
> >> Please load
> >> "HTTP" and "XMLObjectMarshalers" into a clean image, then
> >> file in "CPN
> >> Tools.st". "X2O - marshalling.ws" contains all necessary code
> >> to unmarshal
> >> "CPN Claims Process.xml".
> >> Inspect the results:
> >> -> 1 -> value -> 'ID6' -> transitions
> >> Each transition labeled with $+ should hold a struct with a "graph"
> >> object. But this works only after unmarshalling the second time.
> >>
> >> Steffen
> >>
> >>
> >> Am 17.03.2009, 21:18 Uhr, schrieb Gregory Bourassa
> >> <[hidden email]>:
> >>
> >> > Steffen,
> >> >
> >> > Please bear with me, as my only toe-hold in this is the XML
> >> and DTD
> >> > part. I have not used the WebServices marshaller.
> >> >
> >> > Having a closer look at your binding.xml, but unable to
> >> browse your
> >> > code because the source files are missing, it occurs to me
> >> that the
> >> > marshaller may not in fact be able to resolve all the
> >> forward references.
> >> >
> >> > The mapping from your XML to the object model:
> >> >
> >> > page --> ColoredPetriNet
> >> > trans --> CPNTransition
> >> >
> >> > ColoredPetriNet holds a collection of CPNTransitions in its
> >> > "transitions" instance variable.
> >> >
> >> > Note that your Schema maps page's child element "trans" to
> >> > ColoredPetriNet's instance variable "transitions". It
> >> mentions the
> >> > selector "addTransitions:" for Smalltalk to use in setting
> >> this. This
> >> > seems to work well, and gives you the collection of CPNTransition
> >> > objects on the first marshalling.
> >> >
> >> > On the other hand, the Schema maps trans's child element
> >> "subst" not to
> >> > an existing instance variable of CPNTransition (which would be
> >> > "subgraph"), but instead to the Webservices.Struct called
> >> subnetStruct,
> >> > and gives no Smalltalk selector for setting that. This
> >> may be related
> >> > to the problem with the forward references.
> >> >
> >> > I am not very familiar with the object marshaller's
> >> Schemas. Maybe the
> >> > schema could be tightened up to give you the result you
> >> want. It may
> >> > need a "setter" method on CPNTransition, and the corresponding
> >> > correction of the schema definition for <object name="trans"...
> >> >
> >> > G.B.
> >> >
> >> >
> >> >
> >> >
> >> > Steffen Märcker wrote:
> >> >> Hi,
> >> >>
> >> >> I am facing some trouble with the XML marshalling framework. The
> >> >> documentation says that it handles references,
> particularly forward
> >> >> references. Unless I've made a mistake, it doesn't in
> the following
> >> >> example.
> >> >> All necessary code and a ready-to-use image is available here:
> >> >> http://dl.getdropbox.com/u/106181/CPN_Tool%20-%20XML.zip
> >> >> (open the image or load the parcel or file in .st)
> >> >> Please execute the workspace code at first without the
> >> second unmarshal
> >> >> message and inspect the result. Diving into ID6
> >> (ColoredPetriNet) brings
> >> >> up 5 transitions. '+' indicates, that the should have a
> >> subgraph, but
> >> >> the
> >> >> corresponding structure ist empty. If you execute both
> >> unmarshalling
> >> >> messages, the references to the subnets are beeing
> >> resolved as intended.
> >> >> Has anybody an idea what goes wrong?
> >> >>
> >> >> Greetings,
> >> >> Steffen Märcker
> >> >> _______________________________________________
> >> >> vwnc mailing list
> >> >> [hidden email]
> >> >> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc
> >> >>
> >> >>
> >> >
> >> >
> >> > -----------------------------------------
> >> > Key Technology, Inc. Disclaimer Notice - The information and
> >> > attachment(s) contained in this communication are
> intended for the
> >> > addressee only, and may be confidential and/or legally
> privileged.
> >> > If you have received this communication in error, please contact
> >> > the sender immediately, and delete this communication from any
> >> > computer or network system. Any interception, review, printing,
> >> > copying, re-transmission, dissemination, or other use
> of, or taking
> >> > of any action upon this information by persons or entities other
> >> > than the intended recipient is strictly prohibited by law and may
> >> > subject them to criminal or civil liability. Key Technology, Inc.
> >> > is not liable for the improper and/or incomplete transmission of
> >> > the information contained in this communication or for
> any delay in
> >> > its receipt.
> >>
> >>
>
>
>

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