Deletes statements from a RDF data structure.

As opposed to the delete functions on RDF data structures directly, this function only deletes exactly matching structures.

TODO: rename this function to make the different semantics explicit

Checks if a RDF data structure contains statements about the given resource.

Returns a RDF.Description of the given subject.

Note: On a RDF.Dataset this will return an aggregated RDF.Description with the statements about this subject from all graphs.

Returns all RDF.Descriptions within a RDF data structure.

Note: On a RDF.Dataset this will return aggregated RDF.Descriptions about the same subject from all graphs.

Checks if two RDF data structures are equal.

Two RDF data structures are considered to be equal if they contain the same triples.

• comparing two RDF.Descriptions it's just the same as RDF.Description.equal?/2
• comparing two RDF.Graphs differs in RDF.Graph.equal?/2 in that the graph name is ignored
• comparing two RDF.Datasets differs in RDF.Dataset.equal?/2 in that the dataset name is ignored
• a RDF.Description is equal to a RDF.Graph, if the graph has just one description which equals the given description
• a RDF.Description is equal to a RDF.Dataset, if the dataset has just one graph which contains only the given description
• a RDF.Graph is equal to a RDF.Dataset, if the dataset has just one graph which equals the given graph; note that in this case the graph names must match

Checks if the given statement exists within a RDF data structure.

Adds statements to a RDF data structure.

As opposed to the specific add functions on the RDF data structures, which always return the same structure type than the first argument, merge might result in another RDF data structure, eg. merging two RDF.Description with different subjects results in a RDF.Graph or adding a quad to a RDF.Graph with a different name than the graph context of the quad results in a RDF.Dataset. But it is always guaranteed that the resulting structure has a RDF.Data implementation.

Returns the set of all resources used in the objects within the statements of a RDF data structure.

Deletes one statement from a RDF data structure and returns a tuple with deleted statement and the changed data structure.

Returns the set of all properties used within the statements of RDF data structure.

Returns the set of all resources used within the statements of a RDF data structure

Returns the count of all statements of a RDF data structure.

Returns the list of all statements of a RDF data structure.

Returns the count of all resources which are subject of the statements of a RDF data structure.

Returns the set of all resources which are subject of the statements of a RDF data structure.

Returns a nested map of the native Elixir values of a RDF data structure.

Returns a nested map of the native Elixir values of a RDF data structure with values mapped with the given function.