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Posted to commits@stanbol.apache.org by "Rupert Westenthaler (JIRA)" <ji...@apache.org> on 2012/10/10 08:19:03 UTC
[jira] [Created] (STANBOL-764) Add support for importing Quads to
the JenaTDB indexing source
Rupert Westenthaler created STANBOL-764:
-------------------------------------------
Summary: Add support for importing Quads to the JenaTDB indexing source
Key: STANBOL-764
URL: https://issues.apache.org/jira/browse/STANBOL-764
Project: Stanbol
Issue Type: New Feature
Components: Entity Hub
Reporter: Rupert Westenthaler
Assignee: Rupert Westenthaler
Priority: Minor
The Jena TDB indexing source should support quads (Nquads, Trig serialized RDF data) by ignoring the context.
This means that SPO (the triples) are stored to the default dataset of the Jena TDB store by ignoring the Context information of the quads.
see also http://markmail.org/message/jzy6w7abettauxqv
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[jira] [Resolved] (STANBOL-764) Add support for importing Quads to
the JenaTDB indexing source
Posted by "Rupert Westenthaler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STANBOL-764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rupert Westenthaler resolved STANBOL-764.
-----------------------------------------
Resolution: Implemented
implemented with http://svn.apache.org/viewvc?rev=1396507&view=rev
> Add support for importing Quads to the JenaTDB indexing source
> --------------------------------------------------------------
>
> Key: STANBOL-764
> URL: https://issues.apache.org/jira/browse/STANBOL-764
> Project: Stanbol
> Issue Type: New Feature
> Components: Entity Hub
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
> Priority: Minor
>
> The Jena TDB indexing source should support quads (Nquads, Trig serialized RDF data) by ignoring the context.
> This means that SPO (the triples) are stored to the default dataset of the Jena TDB store by ignoring the Context information of the quads.
> see also http://markmail.org/message/jzy6w7abettauxqv
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[jira] [Comment Edited] (STANBOL-764) Add support for importing
Quads to the JenaTDB indexing source
Posted by "Rupert Westenthaler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STANBOL-764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473056#comment-13473056 ]
Rupert Westenthaler edited comment on STANBOL-764 at 10/10/12 7:57 AM:
-----------------------------------------------------------------------
To avoid clashes with bank nodes (Bnodes) in different Graphs the importer processes those for Subjects and Objects of imported quads.
If the Context is a URI, than BNodes are converted by using the Context URI as base and the Bnode ID as local name. If the Context is a Bnode, that the Bnode ID of the Subject/Object is appended (by using '_' as separator) to the Bnode ID of the context.
e.g. the quad
_:node16nh2jpdcx57591272 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en <http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.html> .
would be imported as Triple
http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.htm#node16nh2jpdcx5759127 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en .
NOTES:
* This does change the RDF data as anonymous BNodes are converted to dereferenceable URIs. Because of that this behavior might need some further discussion
* This does work for BNodes linking to other BNodes as BNodes are only valid within the same Graph. Meaning that Contexts of Bnodes linking to each other are ensured to be the same. Therefore also the UIRs, NodeIds of the processed nodes will match.
was (Author: rwesten):
To avoid clashes with bank nodes (Bnodes) the importer replaces Bnodes with URIs that use the URI of the context and do add the Bnode ID as local name.
e.g. the quad
_:node16nh2jpdcx57591272 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en <http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.html> .
would be imported as Triple
http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.htm#node16nh2jpdcx5759127 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en .
One needs to note that this does change the RDF data as anonymous BNodes are converted to dereferenceable URIs. Because of that this behavior might need some further discussion
> Add support for importing Quads to the JenaTDB indexing source
> --------------------------------------------------------------
>
> Key: STANBOL-764
> URL: https://issues.apache.org/jira/browse/STANBOL-764
> Project: Stanbol
> Issue Type: New Feature
> Components: Entity Hub
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
> Priority: Minor
>
> The Jena TDB indexing source should support quads (Nquads, Trig serialized RDF data) by ignoring the context.
> This means that SPO (the triples) are stored to the default dataset of the Jena TDB store by ignoring the Context information of the quads.
> see also http://markmail.org/message/jzy6w7abettauxqv
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[jira] [Updated] (STANBOL-764) Add support for importing Quads to
the JenaTDB indexing source
Posted by "Rupert Westenthaler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STANBOL-764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rupert Westenthaler updated STANBOL-764:
----------------------------------------
Comment: was deleted
(was: To avoid clashes with bank nodes (Bnodes) in different Graphs the importer processes those for Subjects and Objects of imported quads.
If the Context is a URI, than BNodes are converted by using the Context URI as base and the Bnode ID as local name. If the Context is a Bnode, that the Bnode ID of the Subject/Object is appended (by using '_' as separator) to the Bnode ID of the context.
e.g. the quad
_:node16nh2jpdcx57591272 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en <http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.html> .
would be imported as Triple
http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.htm#node16nh2jpdcx5759127 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en .
NOTES:
* This does change the RDF data as anonymous BNodes are converted to dereferenceable URIs. Because of that this behavior might need some further discussion
* This does work for BNodes linking to other BNodes as BNodes are only valid within the same Graph. Meaning that Contexts of Bnodes linking to each other are ensured to be the same. Therefore also the UIRs, NodeIds of the processed nodes will match.)
> Add support for importing Quads to the JenaTDB indexing source
> --------------------------------------------------------------
>
> Key: STANBOL-764
> URL: https://issues.apache.org/jira/browse/STANBOL-764
> Project: Stanbol
> Issue Type: New Feature
> Components: Entity Hub
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
> Priority: Minor
>
> The Jena TDB indexing source should support quads (Nquads, Trig serialized RDF data) by ignoring the context.
> This means that SPO (the triples) are stored to the default dataset of the Jena TDB store by ignoring the Context information of the quads.
> see also http://markmail.org/message/jzy6w7abettauxqv
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[jira] [Commented] (STANBOL-764) Add support for importing Quads to
the JenaTDB indexing source
Posted by "Rupert Westenthaler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STANBOL-764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473056#comment-13473056 ]
Rupert Westenthaler commented on STANBOL-764:
---------------------------------------------
To avoid clashes with bank nodes (Bnodes) the importer replaces Bnodes with URIs that use the URI of the context and do add the Bnode ID as local name.
e.g. the quad
_:node16nh2jpdcx57591272 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en <http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.html> .
would be imported as Triple
http://www.huffingtonpost.com/2009/01/13/obama-issues-first-veto-t_n_157585.htm#node16nh2jpdcx5759127 <http://xmlns.com/foaf/0.1/name> "Barack Obama"@en .
One needs to note that this does change the RDF data as anonymous BNodes are converted to dereferenceable URIs. Because of that this behavior might need some further discussion
> Add support for importing Quads to the JenaTDB indexing source
> --------------------------------------------------------------
>
> Key: STANBOL-764
> URL: https://issues.apache.org/jira/browse/STANBOL-764
> Project: Stanbol
> Issue Type: New Feature
> Components: Entity Hub
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
> Priority: Minor
>
> The Jena TDB indexing source should support quads (Nquads, Trig serialized RDF data) by ignoring the context.
> This means that SPO (the triples) are stored to the default dataset of the Jena TDB store by ignoring the Context information of the quads.
> see also http://markmail.org/message/jzy6w7abettauxqv
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