Examples with QueryIterAbortable org.apache.jena.sparql.engine.iterator.QueryIterAbortable used on opensource projects

Example 6 with QueryIterAbortable

use of org.apache.jena.sparql.engine.iterator.QueryIterAbortable in project jena by apache.

the class PatternMatchData method execute.

/**
 * Non-reordering execution of a triple pattern (basic graph pattern),
 * given an iterator of bindings as input.
 */
public static QueryIterator execute(Graph graph, BasicPattern pattern, QueryIterator input, Predicate<Triple> filter, ExecutionContext execCxt) {
    List<Triple> triples = pattern.getList();
    Iterator<Binding> chain = input;
    List<Abortable> killList = new ArrayList<>();
    for (Triple triple : triples) {
        // Plain, no RDF-star
        // chain = StageMatchTriple.accessTriple(chain, graph, triple, filter, execCxt);
        // [Match] Missing filter.
        chain = SolverRX3.rdfStarTriple(chain, triple, execCxt);
        chain = SolverLib.makeAbortable(chain, killList);
    }
    // "killList" will be aborted on timeout.
    return new QueryIterAbortable(chain, killList, input, execCxt);
}