LdPath processor for Entityhub Indexing
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                 Key: STANBOL-556
                 URL: https://issues.apache.org/jira/browse/STANBOL-556
             Project: Stanbol
          Issue Type: New Feature
          Components: Entity Hub
            Reporter: Rupert Westenthaler
            Assignee: Rupert Westenthaler
            Priority: Minor


This will allow to use simple LDPath statements for property mappings during 
the indexing of datasets.

While the default mapping language supports a lot of use cases for mapping, 
converting and filtering of properties it is by far not as capable as 
[LDpath](http://code.google.com/p/ldpath/). Because of that the indexing tools 
has also support for using LDPath to process entities by using the 
"LdpathProcessor". 

A typical usage example of the LdpathProcessor processor are type specific 
mappings such as

    skos:prefLabel = .[rdf:type is diseasome:genes]/rdfs:label;

This specifies that only for entities of the type "diseasome:genes" the 
rdfs:label is mapped to skos:prefLabel. rdfs:labels of Entities with other 
types will not be mapped to skos:prefLabel by this rule.


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