- semweb
- semweb
- rdf_db.pl -- Core RDF database
- rdf_equal/2
- lang_equal/2
- lang_matches/2
- rdf/3
- rdf/4
- rdf_has/3
- rdf_has/4
- rdf_reachable/3
- rdf_reachable/5
- rdf_subject/1
- rdf_resource/1
- rdf_assert/3
- rdf_assert/4
- rdf_retractall/3
- rdf_retractall/4
- rdf_update/4
- rdf_update/5
- rdf_member_property/2
- rdf_node/1
- rdf_bnode/1
- rdf_is_bnode/1
- rdf_is_resource/1
- rdf_is_literal/1
- rdf_current_literal/1
- rdf_literal_value/2
- rdf_source_location/2
- rdf_create_gc_thread/0
- rdf_gc/0
- rdf_statistics/1
- rdf_current_predicate/1
- rdf_predicate_property/2
- rdf_set_predicate/2
- rdf_snapshot/1
- rdf_delete_snapshot/1
- rdf_current_snapshot/1
- rdf_transaction/1
- rdf_transaction/2
- rdf_transaction/3
- rdf_active_transaction/1
- rdf_monitor/2
- rdf_warm_indexes/0
- rdf_warm_indexes/1
- rdf_update_duplicates/0
- rdf_update_duplicates_thread/0
- rdf_update_duplicates/0
- rdf_save_db/1
- rdf_save_db/2
- rdf_load_db/1
- rdf_load/1
- rdf_load/2
- rdf_file_type/2
- rdf_load_stream/3
- rdf_unload/1
- rdf_unload_graph/1
- rdf_create_graph/1
- rdf_graph/1
- rdf_source/2
- rdf_source/1
- rdf_make/0
- rdf_graph_property/2
- rdf_set_graph/2
- rdf_reset_db/0
- rdf_save/1
- rdf_save/2
- rdf_save_header/2
- rdf_graph_prefixes/2
- rdf_graph_prefixes/3
- rdf_save_footer/1
- rdf_save_subject/3
- rdf_compare/3
- rdf_match_label/3
- rdf_split_url/3
- rdf_url_namespace/2
- rdf_new_literal_map/1
- rdf_destroy_literal_map/1
- rdf_reset_literal_map/1
- rdf_insert_literal_map/3
- rdf_insert_literal_map/4
- rdf_delete_literal_map/2
- rdf_delete_literal_map/3
- rdf_find_literal_map/3
- rdf_keys_in_literal_map/3
- rdf_statistics_literal_map/2
- rdf_version/1
- rdf_set/1
- rdf_md5/2
- rdf_generation/1
- rdf_estimate_complexity/4
- rdf_debug/1
- rdf_atom_md5/3
- rdf_prefixes.pl -- RDF prefixes management
- rdfs.pl -- RDFS handling
- rdf11.pl -- RDF 1.1 API
- rdf_persistency.pl -- RDF persistency plugin
- rdf_litindex.pl -- Search literals
- rdf_ntriples.pl -- Process files in the RDF N-Triples format
- sparql_client.pl -- SPARQL client library
- rdf_http_plugin.pl -- RDF HTTP Plugin
- rdf_turtle_write.pl -- Turtle - Terse RDF Triple Language writer
- turtle.pl -- Turtle: Terse RDF Triple Language
- rdf_library.pl -- RDF Library Manager
- rdf_turtle.pl -- Turtle reader
- rdf_cache.pl -- Cache RDF triples
- rdf_sandbox.pl -- Declare RDF API sandbox-safe
- rdf_zlib_plugin.pl -- RDF compressed-data plugin
- rdf_db.pl -- Core RDF database
- semweb
- rdf_predicate_property(?Predicate, ?Property)
- Query properties of a defined predicate. Currently defined
properties are given below.
- symmetric(Bool)
- True if the predicate is defined to be symetric. I.e., {A} P
{B} implies {B} P {A}. Setting symmetric is equivalent to
inverse_of(Self)
. - inverse_of(Inverse)
- True if this predicate is the inverse of Inverse. This property is used by rdf_has/3, rdf_has/4, rdf_reachable/3 and rdf_reachable/5.
- transitive(Bool)
- True if this predicate is transitive. This predicate is currently not used. It might be used to make rdf_has/3 imply rdf_reachable/3 for transitive predicates.
- triples(Triples)
- Unify Triples with the number of existing triples using this predicate as second argument. Reporting the number of triples is intended to support query optimization.
- rdf_subject_branch_factor(-Float)
- Unify Float with the average number of triples associated with each unique value for the subject-side of this relation. If there are no triples the value 0.0 is returned. This value is cached with the predicate and recomputed only after substantial changes to the triple set associated to this relation. This property is intended for path optimalisation when solving conjunctions of rdf/3 goals.
- rdf_object_branch_factor(-Float)
- Unify Float with the average number of triples associated with
each unique value for the object-side of this relation. In
addition to the comments with the
rdf_subject_branch_factor
property, uniqueness of the object value is computed from the hash key rather than the actual values. - rdfs_subject_branch_factor(-Float)
- Same as
rdf_subject_branch_factor
, but also considering triples of `subPropertyOf' this relation. See also rdf_has/3. - rdfs_object_branch_factor(-Float)
- Same as
rdf_object_branch_factor
, but also considering triples of `subPropertyOf' this relation. See also rdf_has/3.
- See also
- - rdf_set_predicate/2.