Hi Jérôme,
i tried to load following xml document (linking-test.xml) in basex (with
deactivated internal parser and activated xinclude option) as you mentioned:
<Links xmlns:xi="http://www.w3.org/2001/XInclude";>
<Link>
<xi:include href="process-db.xml"
xpointer="element(//*[@Id='sid-D453B3D6-0EA6-4607-A413-C6332ABE9F32'])"/>
<xi:include href="requirements.xml"
xpointer="element(//*[@Id='11cc0940-c8fb-4b81-920a-1ab5aea30037'])"/>
</Link>
</Links>
The answer form basex is:
"basex/linking-test.xml" (Zeile 3): "include" mit href "process-db.xml" nicht
erfolgreich, und es wurde kein "fallback"-Element gefunden.
(I use the german version :); translated: "include" with href "process-db.xml"
was not successful, and there is no "fallback"-Element found.)
It seems, there is no document with path "process-db.xml", but it is! If I try:
db:path(doc("process-db")) it returns "process-db.xml"
Have you any idea, what's my mistake? Maybe the documents to link have to be
stored in a different way?
Thanks and Regards
Florian
Von: Jérôme Chauveau [mailto:[email protected]]
Gesendet: Montag, 27. April 2015 16:18
An: Eckey, Florian
Cc: [email protected]
Betreff: Re: AW: [basex-talk] XLink and XPointer
Florian,
When the XINCLUDE option is enabled, xpointers are automatically executed.
xpointer attribute has to be used on an <include/> element (href one is
required to point on the xml document)
With this xml contents:
in yourdb/linking.xml:
<Links
xmlns:xi="http://www.w3.org/2001/XInclude";<http://www.w3.org/2001/XInclude>>
<Link> (linking activities with requirements)
<xi:include href="requirements-db.xml"
xpointer="element(/path/to/activity/with/activity-id-node)"/> *
<xi:include href="bpmn-db.xml"
xpointer="element(/path/to/requirement/with/requirement-id-node)"/> *
</Link>
</Links>
* Unfortunately, element scheme with node IDs is not well implemented
(according to my tests) unless your documents are validating against a DTD
(link<http://www.w3.org/TR/xptr-framework/#term-ddi>).
When you'll execute this query (on the REST interface for example):
doc('yourdb/linking.xml')/links/link[1]
will returned:
<Link> (linking activities with requirements)
<Activity Id="activity-id">
...
</Activity>
<Requirement Id="requirement-id">
...
</Requirement>
</Link>
Hope this helps,
Jérôme.
Le 27/04/2015 15:35, Eckey, Florian a écrit :
Hi Jérôme,
thanks for your input. Following situation: I have two documents in different
xml databases (basex). On the one side a business process model document (bpmn
2.0) and on the other side a requirements specification document. These
documents have to be consistent. One approach to handle consistency is linking
specific elements of both documents with each other. In my approach, i need to
link activities (xml nodes) and specific requirements (xml nodes) with each
other. So the second approach seems to fit best. I understand the syntax of
this approach, but one time I have to evaluate this xpointer expressions. Is
the evaluation implemented anywhere? Or how can I do this?
Maybe I even don't need xinclude, but rather something like this (more similar
to xlink; linking in an external document):
Business process document (xml database in basex):
<Package>
...
<Activity Id="activity-id">
...
</Activity>
...
</Package>
Business process document (xml database in basex):
<Requirements>
...
<Requirement Id="requirement-id">
...
</Requirement>
...
</Requirements >
Linking:
<Links>
<Link> (linking activities with requirements)
<Locator href="requirements-db"
xpointer="element(Activity[@Id=$activity-id])"/> (use xinclude here feels wrong)
<Locator href="bpmn-db" xpointer="element(Requirement[@Id=$requirement-id])"/>
</Link>
</Links>
Is there something similar? Especially to execute xpointer? Or do I have to
implement it on my own?
Thanks for your answers.
Regards.
Florian
Von:
[email protected]<mailto:[email protected]>
[mailto:[email protected]] Im Auftrag von Jérôme
Chauveau
Gesendet: Montag, 27. April 2015 15:07
An:
[email protected]<mailto:[email protected]>
Betreff: Re: [basex-talk] XLink and XPointer
Hi Florian,
The XINCLUDE Option is enabled in the default BaseX configuration.
Which kind of xpointer link do you need?
Those 2 inclusion types seems to be well-implemented is the Java XInclude
support (xinclude implementation used in BaseX):
1 - full document inclusion: <xi:include href='myDocument.xml'/>
2 - Fragment inclusion: <xi:include href='myDocument.xml'
xpointer='element(/1/path/to/fragment' />
Hope this helps,
Regards.
Jérôme
Le 27/04/2015 13:29, Eckey, Florian a écrit :
Hello,
i am actually writing my master thesis using basex for xml processing. I need
to create consistency links between two xml documents, especially basex
databases and its content. So I am certainly looking for xlink and xpointer
implementations in basex. Are there any examples to do this with basex or if
not, has anyone implemented an xquery version to execute it? I recoginzed that
there are capabilities with xinclude. But I does not find any references of
xinclude in basex, unless this: http://docs.basex.org/wiki/Options#XINCLUDE
So has anyone ideas or experiences using xlink and especially xpointer with
basex or xquery?
Regards,
Florian
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