Examples with Node org.apache.jena.graph.Node used on opensource projects

Example 56 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class RiotLib method parse.

/** Parse a string to get one Node (the first token in the string) */
public static Node parse(String string) {
    Tokenizer tokenizer = TokenizerFactory.makeTokenizerString(string);
    if (!tokenizer.hasNext())
        return null;
    Token t = tokenizer.next();
    Node n = profile.create(null, t);
    if (tokenizer.hasNext())
        Log.warn(RiotLib.class, "String has more than one token in it: " + string);
    return n;
}

Example 57 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class PropFuncArg method asExprList.

/** @deprecated To be removed - use {@link #asExprList()} */
@Deprecated
public ExprList asExprList(PropFuncArg pfArg) {
    ExprList exprList = new ExprList();
    if (pfArg.isNode()) {
        Node n = pfArg.getArg();
        Expr expr = ExprUtils.nodeToExpr(n);
        exprList.add(expr);
        return exprList;
    }
    for (Node n : pfArg.getArgList()) {
        Expr expr = ExprUtils.nodeToExpr(n);
        exprList.add(expr);
    }
    return exprList;
}

Example 58 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class PropFuncArg method output.

@Override
public void output(final IndentedWriter out, final SerializationContext sCxt) {
    if (argList == null && arg == null)
        out.print("<<null>>");
    if (argList != null) {
        out.print("(");
        boolean first = true;
        for (Node n : argList) {
            if (!first)
                out.print(" ");
            String str = FmtUtils.stringForNode(n, sCxt);
            out.print(str);
            first = false;
        }
        out.print(")");
    }
    if (arg != null)
        out.print(FmtUtils.stringForNode(arg));
}

Example 59 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class ListBase method allLists.

protected QueryIterator allLists(Binding binding, Collection<Node> x, Var listVar, Node predicate, PropFuncArg argObject, ExecutionContext execCxt) {
    // BFI: Find all lists; work hard.
    QueryIterConcat qIter = new QueryIterConcat(execCxt);
    for (Node n : x) {
        Binding b = BindingFactory.binding(binding, listVar, n);
        QueryIterator q = execOneList(b, n, predicate, argObject, execCxt);
        qIter.add(q);
    }
    return qIter;
}

Example 60 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class ListBase method listUnboundSubject.

private QueryIterator listUnboundSubject(Binding binding, Var listVar, Node predicate, PropFuncArg argObject, ExecutionContext execCxt) {
    // Object?
    if (argObject.isList()) {
        List<Node> objectArgs = argObject.getArgList();
        return execObjectList(binding, listVar, predicate, objectArgs, execCxt);
    }
    Node obj = argObject.getArg();
    if (Var.isVar(obj)) {
        Graph graph = execCxt.getActiveGraph();
        Set<Node> x = GraphList.findAllLists(graph);
        return allLists(binding, x, listVar, obj, argObject, execCxt);
    }
    // Subject unbound.  Object a bound node.
    return execObjectBound(binding, listVar, predicate, obj, execCxt);
}