rdf_current_predicate/1

Documentation
- Reference manual
- Packages
  - SWI-Prolog Semantic Web Library 3.0
    - Two RDF APIs
      - library(semweb/rdf_db): The RDF database
        
        Enumerating objects
        
        rdf_subject/1
        
        rdf_resource/1
        
        rdf_current_predicate/1
        
        rdf_current_literal/1
        
        rdf_graph/1
        
        rdf_current_ns/2

Availability::- use_module(library(semweb/rdf_db)).

[nondet]rdf_current_predicate(?Predicate)

True when Predicate is a currently known predicate. Predicates are created if a triples is created that uses this predicate or a property of the predicate is set using rdf_set_predicate/2. The predicate may (no longer) have triples associated with it.

Note that resources that have rdf:type rdf:Property are not automatically included in the result-set of this predicate, while all resources that appear as the second argument of a triple are included.

See also: rdf_predicate_property/2.