Module org.apache.jena.arq
Package org.apache.jena.sparql.pfunction

Interface PropertyFunction

All Known Implementing Classes:
alt, assign, bag, blankNode, bnode, concat, container, ListBase, ListBase1, ListBaseList, listIndex, listLength, listMember, PathPropertyFunction, PFuncAssignToObject, PFuncAssignToSubject, PFuncListAndList, PFuncListAndSimple, PFuncSimple, PFuncSimpleAndList, PropertyFunctionBase, PropertyFunctionEval, seq, splitIRI, splitURI, str, strSplit
public interface PropertyFunction

  • Method Details

    • build

      void build(PropFuncArg argSubject, org.apache.jena.graph.Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
      Called during query plan construction immediately after the construction of the property function instance.
      Parameters:
      argSubject - The parsed argument(s) in the subject position
      predicate - The extension URI (as a Node).
      argObject - The parsed argument(s) in the object position
      execCxt - Execution context

    • exec

      QueryIterator exec(QueryIterator input, PropFuncArg argSubject, org.apache.jena.graph.Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
      Create an iterator of bindings for the given inputs
      Parameters:
      input - QueryIterator from the previous stage
      argSubject - The parsed argument(s) in the subject position
      predicate - The extension URI (as a Node).
      argObject - The parsed argument(s) in the object position
      execCxt - The execution context
      Returns:
      QueryIterator