From know you can refer to: http://wiki.apache.org/marmotta/LDPath
where Jakob is moving all documentation about LDPath.
On 18/02/13 17:29, Reto Bachmann-Gmür wrote:
Hi Sebastian,
I knew I saw it somewhere that's another reason I was surprised not to find
it. My bad that I was looking for "inverse" and "backward" and forgot
"reverse".
Cheers,
Reto
On Mon, Feb 18, 2013 at 5:07 PM, Sebastian Schaffert
<[email protected]>wrote:
Hi Reto,
2013/2/18 Reto Bachmann-Gmür<[email protected]>
Hello
For writing a LdPath template I need to follow a property backwards.
So I get to a resource eg:Paris which is also the object of a statement
with property meta:about. In my template I now want to expand to the
subject of this statement. In the description of the LdPath syntax I
couldn’t find how to do this. This clearly should be supported as
requiring
a specific direction of properties is against the ethos of RDF according
to
TimBL (http://dig.csail.mit.edu/breadcrumbs/node/72).
This is already supported in LDPath since the first release. You can follow
a link in reverse direction by prefixing it with "^", e.g. "^foaf:knows".
See http://code.google.com/p/ldpath/wiki/PathLanguage
Note, however, that this kind of navigation is not completely supported
over the Linked Data Cloud. While it might be against the ethos of RDF,
Linked Data restricts these principles. In most cases it is not possible to
know the incoming links from external datasets to a resource.
Greetings,
Sebastian
Cheers,
Reto
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