Formating code used metadataExtractor in class BaseRDFRepo.
Update RDFDataUnit interface
- make public methods for metadata
- solve javadoc warning for metadata
- auto formatting
Change dependency for dataunit-rdf to dataunit-file
- need for fix warnings in javadoc
Update FileRDFMetadataExtractor
- remove unused import
- auto formatting
Add missing public visibility to Handler interface
- auto formatting
Remove unused import from ManagableRdfDataUnit
Change class description in QueryValidator.