Examples with Substitute org.apache.jena.sparql.core.Substitute used on opensource projects

Example 1 with Substitute

use of org.apache.jena.sparql.core.Substitute in project jena by apache.

the class SolverRX4 method match.

// RDF term matcher - may recurse and call matchTriple is a triple term is in the pattern.
private static boolean match(BindingBuilder bb, Node nData, Node nPattern) {
    if (nPattern == null)
        return true;
    if (nData == Node.ANY)
        return true;
    // Deep substitute. This happens anyway as we walk structures.
    // nPattern = Substitute.substitute(nPattern, input);
    // Shallow substitute
    nPattern = Var.lookup(v -> bb.get(v), nPattern);
    // nPattern.isConcrete() : either nPattern is an RDF term or is <<>> with no variables.
    if (nPattern.isConcrete()) {
        // Term comparison.
        return sameTermAs(nData, nPattern);
    }
    // Easy case - nPattern is a variable.
    if (Var.isVar(nPattern)) {
        Var var = Var.alloc(nPattern);
        bb.add(var, nData);
        return true;
    }
    // nPattern is <<>> with variables. Is the data a <<>>?
    if (!nData.isNodeTriple())
        return false;
    // nData is <<>>, nPattern is <<>>
    // Unpack, match components.
    Triple tPattern = nPattern.getTriple();
    Triple tData = nData.getTriple();
    return SolverRX3.bindTriple(bb, tData, tPattern);
}

Example 2 with Substitute

use of org.apache.jena.sparql.core.Substitute in project jena by apache.

the class SolverRX3 method match.

// RDF term matcher - may recurse and call matchTriple is a triple term is in the pattern.
private static boolean match(BindingBuilder bb, Node nData, Node nPattern) {
    if (nPattern == null)
        return true;
    if (nData == Node.ANY)
        return true;
    // Deep substitute. This happens anyway as we walk structures.
    // nPattern = Substitute.substitute(nPattern, input);
    // Shallow substitute
    nPattern = Var.lookup(v -> bb.get(v), nPattern);
    // nPattern.isConcrete() : either nPattern is an RDF term or is <<>> with no variables.
    if (nPattern.isConcrete()) {
        // Term comparison.
        return sameTermAs(nData, nPattern);
    }
    // Easy case - nPattern is a variable.
    if (Var.isVar(nPattern)) {
        Var var = Var.alloc(nPattern);
        bb.add(var, nData);
        return true;
    }
    // nPattern is <<>> with variables. Is the data a <<>>?
    if (!nData.isNodeTriple())
        return false;
    // nData is <<>>, nPattern is <<>>
    // Unpack, match components.
    Triple tPattern = nPattern.getTriple();
    Triple tData = nData.getTriple();
    return bindTriple(bb, tData, tPattern);
}