Examples with Path org.apache.jena.sparql.path.Path used on opensource projects

Example 1 with Path

use of org.apache.jena.sparql.path.Path in project jena by apache.

the class PathEngineN method doSeq.

@Override
protected void doSeq(Path pathStepLeft, Path pathStepRight, Node node, Collection<Node> output) {
    Path part1 = forwardMode ? pathStepLeft : pathStepRight;
    Path part2 = forwardMode ? pathStepRight : pathStepLeft;
    // Feed one side into the other
    Iter<Node> iter = eval(part1, node);
    iter.forEachRemaining((n) -> eval(part2, n, output));
}

Example 2 with Path

use of org.apache.jena.sparql.path.Path in project jena by apache.

the class PathEngineN method doMultiLengthPath.

@Override
protected void doMultiLengthPath(Path pathStep, Node node, long min1, long max1, Collection<Node> output) {
    if (min1 == P_Mod.UNSET)
        // {,N}
        min1 = 0;
    if (min1 == 0)
        output.add(node);
    if (max1 == 0)
        return;
    // The next step
    long min2 = dec(min1);
    long max2 = dec(max1);
    // TODO Rewrite
    Path p1 = pathStep;
    Path p2 = new P_Mod(pathStep, min2, max2);
    if (!forwardMode) {
        // Reverse order. Do the second bit first.
        Path tmp = p1;
        p1 = p2;
        p2 = tmp;
    // This forces execution to be in the order that it's written, when
    // working backwards.
    // {N,*} is {*} then {N} backwards != do {N} then do {*} as
    // cardinality of the
    // two operations is different.
    }
    // ****
    // One step.
    Iterator<Node> iter = eval(p1, node);
    // Moved on one step
    for (; iter.hasNext(); ) {
        Node n2 = iter.next();
        Iterator<Node> iter2 = eval(p2, n2);
        fill(iter2, output);
    }
// If no matches, will not call eval and we drop out.
}

Example 3 with Path

use of org.apache.jena.sparql.path.Path in project jena by apache.

the class WhereClauseTest method testAddOptionalTriplePath.

@ContractTest
public void testAddOptionalTriplePath() {
    WhereClause<?> whereClause = getProducer().newInstance();
    PrefixMapping pmap = new PrefixMappingImpl();
    pmap.setNsPrefix("ts", "urn:test:");
    Path path = PathParser.parse("ts:two/ts:dos", pmap);
    AbstractQueryBuilder<?> builder = whereClause.addOptional(new TriplePath(NodeFactory.createURI("one"), path, NodeFactory.createURI("three")));
    assertContainsRegex(WHERE + OPEN_CURLY + "OPTIONAL" + SPACE + OPEN_CURLY + uri("one") + SPACE + uri("urn:test:two") + "/" + uri("urn:test:dos") + SPACE + uri("three") + OPT_SPACE + CLOSE_CURLY, builder.buildString());
}

Example 4 with Path

use of org.apache.jena.sparql.path.Path in project jena by apache.

the class WhereClauseTest method testAddOptionalObjectsWithPath.

@ContractTest
public void testAddOptionalObjectsWithPath() {
    WhereClause<?> whereClause = getProducer().newInstance();
    PrefixMapping pmap = new PrefixMappingImpl();
    pmap.setNsPrefix("ts", "urn:test:");
    Path path = PathParser.parse("ts:two/ts:dos", pmap);
    AbstractQueryBuilder<?> builder = whereClause.addOptional(NodeFactory.createURI("one"), path, NodeFactory.createURI("three"));
    assertContainsRegex(WHERE + OPEN_CURLY + "OPTIONAL" + SPACE + OPEN_CURLY + uri("one") + SPACE + uri("urn:test:two") + "/" + uri("urn:test:dos") + SPACE + uri("three") + OPT_SPACE + CLOSE_CURLY, builder.buildString());
}

Example 5 with Path

use of org.apache.jena.sparql.path.Path in project jena by apache.

the class TestPathPF method path_pf_00.

@Test
public void path_pf_00() {
    Path path = SSE.parsePath("(link rdfs:member)");
    eval(graph1, node0, path, new Node[] {});
}