This is a static archive of the previous Open Grid Forum GridForge content management system saved from host forge.ogf.org file /sf/go/artf6552?nav=1 at Fri, 04 Nov 2022 23:48:55 GMT SourceForge : artf6552: Ordered list
Home Projects Search
User Password Logins Disabled Help

Project Home
Tracker
Documents
Tasks
Source Code
Discussions
File Releases
Wiki
Project Admin
NML-WG Homepage
Search Tracker
Project: NML-WG     Trackers > Schema Progress > View Artifact
Artifact artf6552 : Ordered list
Tracker: Schema Progress
Title: Ordered list
Description: 
XML parsers do not have to preserve order of child elements (even though most parsers do in practise).

RDF does not define order at all.

For some relations (including isSerialCompoundLink) we need to specify order.


Proposal: use the "next" relation for both XML and RDF, although their use is different. For RDF, also add the ListItem 
class and item relation.

Example:

<!--
      link A         link B         link C
 O--------------O--------------O--------------O

 (--------------------------------------------)
                     link Z
-->

XML:

<nml:Link id="urn:ogf:network:example.net:2012:linkZ">
	<nml:capacity>1000000000</nml:capacity>
	<nml:Relation type="serialcompound">
		<!-- this is a list -->
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkA">
			<!-- specify order of the list using the next relation -->
			<nml:Relation type="next">
				<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkB"/>
			</nml:Relation>
		</nml:Link>
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkB">
			<!-- specify order of the list using the next relation -->
			<nml:Relation type="next">
				<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkC"/>
			</nml:Relation>
		</nml:Link>
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkC">
	</nml:Relation>
</nml:Link>

RDF:

@prefix nml: <http://example.ogf.org/schemas/nml/>; .
@prefix nmlrel: <http://example.ogf.org/schemas/nml-relation/>; .
@prefix ex: <urn:ogf:network:example.net:2012> .

ex:linkZ a nml:Link ;
	nml:capacity 1000000000 ;
	nmlrel:isSerialCompoundLink ex:linkZ_1 .

ex:linkZ_1 a nml:ListItem ;
	nml:item ex:linkA ;
	nmlrel:next ex:linkZ_2 .
	
ex:linkZ_2 a nmlrel:ListItem ;
	nml:item ex:linkB ;
	nmlrel:next ex:linkZ_3 .

ex:linkZ_3 a nmlrel:ListItem ;
	nml:item ex:linkC .
Submitted By: Freek Dijkstra
Submitted On: 03/28/2012 6:06 PM EDT
Last Modified: 11/30/2012 7:56 AM EST
Closed: 11/30/2012 7:56 AM EST

Status / Comments Change Log Associations Attachments  
 (7 Items)
Field Old Value New Value Date Performed By
Closed 11/30/2012 11/30/2012 7:56 AM EST Jeroen van der Ham
Status 
Last Call
 
Completed
 11/30/2012 7:56 AM EST Jeroen van der Ham
Priority 
4
 
2
 08/08/2012 9:41 AM EDT Freek Dijkstra
Status 
Need proposal
 
Last Call
 08/08/2012 9:41 AM EDT Freek Dijkstra
Description 
XML parsers do not have to preserve order of child elements (even though most 
parsers do in practise).

RDF does not define order at all.

For some relations (including isSerialCompoundLink) we need to specify order.
 
XML parsers do not have to preserve order of child elements (even though most 
parsers do in practise).

RDF does not define order at all.

For some relations (including isSerialCompoundLink) we need to specify order.


Proposal: use the "next" relation for both XML and RDF, although their use is 
different. For RDF, also add the ListItem class and item relation.

Example:

<!--
      link A         link B         link C
 O--------------O--------------O--------------O

 (--------------------------------------------)
                     link Z
-->

XML:

<nml:Link id="urn:ogf:network:example.net:2012:linkZ">
	<nml:capacity>1000000000</nml:capacity>
	<nml:Relation type="serialcompound">
		<!-- this is a list -->
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkA">
			<!-- specify order of the list using the next relation -->
			<nml:Relation type="next">
				<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkB"/>
			</nml:Relation>
		</nml:Link>
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkB">
			<!-- specify order of the list using the next relation -->
			<nml:Relation type="next">
				<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkC"/>
			</nml:Relation>
		</nml:Link>
		<nml:Link nm:idRef="urn:ogf:network:example.net:2012:linkC">
	</nml:Relation>
</nml:Link>

RDF:

@prefix nml: <http://example.ogf.org/schemas/nml/>; .
@prefix nmlrel: <http://example.ogf.org/schemas/nml-relation/>; .
@prefix ex: <urn:ogf:network:example.net:2012> .

ex:linkZ a nml:Link ;
	nml:capacity 1000000000 ;
	nmlrel:isSerialCompoundLink ex:linkZ_1 .

ex:linkZ_1 a nml:ListItem ;
	nml:item ex:linkA ;
	nmlrel:next ex:linkZ_2 .
	
ex:linkZ_2 a nmlrel:ListItem ;
	nml:item ex:linkB ;
	nmlrel:next ex:linkZ_3 .

ex:linkZ_3 a nmlrel:ListItem ;
	nml:item ex:linkC .
 08/08/2012 9:41 AM EDT Freek Dijkstra
Assigned To None Jeroen van der Ham
 03/29/2012 11:52 AM EDT Freek Dijkstra
Status 
Need documentation
 
Need proposal
 03/29/2012 11:52 AM EDT Freek Dijkstra

 
Return
 
 
< Previous
 
 
Next >
 

The Open Grid Forum Contact Webmaster | Report a problem | GridForge Help
This is a static archive of the previous Open Grid Forum GridForge content management system saved from host forge.ogf.org file /sf/go/artf6552?nav=1 at Fri, 04 Nov 2022 23:49:00 GMT