Examples with ExprList org.apache.jena.sparql.expr.ExprList used on opensource projects

Example 26 with ExprList

use of org.apache.jena.sparql.expr.ExprList in project jena by apache.

the class ProcedureEval method exec.

@Override
public QueryIterator exec(Binding binding, Node name, ExprList args, ExecutionContext execCxt) {
    // Eval if possible.
    ExprList evalArgs = new ExprList();
    for (Expr e : args) {
        if (e.isVariable()) {
            Var v = e.getExprVar().asVar();
            // Special case - allow unevaluated variables.
            if (binding.contains(v))
                evalArgs.add(e.eval(binding, execCxt));
            else
                evalArgs.add(e);
        } else {
            NodeValue x = e.eval(binding, execCxt);
            evalArgs.add(x);
        }
    }
    return execEval(binding, evalArgs, execCxt);
}

Example 27 with ExprList

use of org.apache.jena.sparql.expr.ExprList in project jena by apache.

the class SolutionModifierHandler method setVars.

@Override
public void setVars(Map<Var, Node> values) {
    if (values.isEmpty()) {
        return;
    }
    ExprRewriter exprRewriter = new ExprRewriter(values);
    ExprList having = exprRewriter.rewrite(new ExprList(query.getHavingExprs()));
    List<SortCondition> orderBy = exprRewriter.rewriteSortConditionList(query.getOrderBy());
    VarExprList groupBy = exprRewriter.rewrite(query.getGroupBy());
    query.getHavingExprs().clear();
    query.getHavingExprs().addAll(having.getList());
    if (orderBy != null) {
        if (query.getOrderBy() == null) {
            for (SortCondition sc : orderBy) {
                query.addOrderBy(sc);
            }
        } else {
            query.getOrderBy().clear();
            query.getOrderBy().addAll(orderBy);
        }
    }
    query.getGroupBy().clear();
    query.getGroupBy().addAll(groupBy);
}