[STANBOL-590] LDPath processor operating on the IndexingSource and Implementation for the JenaTDB based indexing source.

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0-incubating
• Fix Version/s: entityhub-0.10.0-incubating
• Component/s: Entityhub
• Assignee: Rupert Westenthaler
• Reporter: Rupert Westenthaler
• Created: 24/Apr/12 17:54
• Updated: 10/Jul/12 10:58
• Resolved: 27/Apr/12 06:18

Description

This LDPath processor would allow to use the full LDPath functionality based on the Data of the IndexingSource.
Configuration of such a processor would be also easy as the IndexingSource is already present for every indexing process.
This requires IndexingSurces to implement RDFBackend. This can be easily done for the Jena TDB based indexing source.

This feature would be very useful for calculating the "semantic context" of Entities. Such as following related Entities and indexing their labels with the current Entity. This information may be later used for similarity searches such as Solr MLT.

However the same feature might also be used materialize transitive, symmetric and/or inverse properties in indexed datasets.

Users need to NOTE that indexing time will increase if using those features as execution configured LDPath programms will cause a lot of additional requests to the IndexingSource.