Changelog of Expressive RDF Mapper (XRM)

Version 1.6.0 (2024-04-17)

(R2)RML mapping: Support subject IRIs from reference (rml:reference, rr:column) #153
(R2)RML mapping: Support constant subject IRIs (rr:constant) #89
(R2)RML mapping: Support graph IRIs from reference (rml:reference, rr:column)

Optional specification of target named graph
A class, property or datatype from a vocabulary can also be used as constant value
CSV mapping: Support declaring null value on table level (with CSVW output)
Validation errors for duplicated (ambiguous) names (source, vocabulary, map, etc.)
Explicit typing of generated (R2)RML mappings with rr:TriplesMap improves compatibility with more mapping processors
Show templates in code-assist also if template is declared in another file
Show descriptions from vocabularies in code-assist (only works in Eclipse runtime)
Fix: no doublequotes on a string constant containing an IRI
Fix: syntax highlighting in vscode
Fix: improved code-assist in vscode
Fix: stricter syntax compliance of generated turtle files
Lifecycle: Requires Java 11 or newer
Lifecycle: Upgrade to xtext 2.26. This includes support for running on Java 17

CSV mapping: Generate CSV on the Web (CSVW) output
XML mapping: Support CARML extensions (carml:Stream, carml:multiReference, carml:declaresNamespace)
SQL query as source (R2RML view rr:sqlQuery)
Nesting structures (rr:parentTriplesMap)
Optional rr:termType assignments
Mapping to a constant object value
Quickfix for missing properties
Code formatter (Ctrl + Shift + F)
Source types are now part of the grammar
Datatype definitions moved into vocabulary
Mandatory LINE_ENDS (semicolon) for PredicateObjectMappings in map
Template re-use possibility replaces link