Set :: JenaX Extension Functions

PREFIX set: <http://jsa.aksw.org/fn/set/>
PREFIX norse: <https://w3id.org/aksw/norse#>

• collect
  aggregate function
  collect nodes into set

  SELECT (set:collect(?node) as ?set) {
    ?node ...
  }
  

  rdf:set
• contains
  function
  check if node is in set

  BIND(set:contains(?set, ?node) as ?contains)
  

• difference
  function
  set difference

  BIND(set:difference(?set1, ?set2) as ?differenceSet)
  

• intersection
  function
  set intersection

  BIND(set:intersection(?set1, ?set2) as ?intersectionSet)
  

• of
  function
  create set from arguments

  BIND(set:of(?node1, ?node2, ..., ?nodeN) as ?set)
  

  rdf:set
• size
  function
  get size of set

  BIND(set:size(?set) as ?size)
  

  xsd:int
• symmetricDifference
  function
  symmetric set difference

  BIND(set:symmetricDifference(?set1, ?set2) as ?symmetricDifferenceSet)
  

• toArray
  function
  convert set into array

  BIND(set:toArray(?set) as ?array)
  

  norse:array
• union
  function
  set union

  BIND(set:union(?set1, ?set2) as ?unionSet)
  

• unnest
  property function
  unnest set into many bindings

  SELECT * {
    ?set set:unnest ?node .
  }