Examples with QueryModelVisitorBase org.openrdf.query.algebra.helpers.QueryModelVisitorBase used on opensource projects

Example 1 with QueryModelVisitorBase

use of org.openrdf.query.algebra.helpers.QueryModelVisitorBase in project gocd by gocd.

the class SesameGraph method contextualize.

private void contextualize(Query query) throws Exception {
    if (contextVar == null) {
        return;
    }
    TupleExpr tupleExpr = ((SailQuery) query).getParsedQuery().getTupleExpr();
    tupleExpr.visit(new QueryModelVisitorBase() {

        public void meet(StatementPattern node) throws Exception {
            if (node.getContextVar() != null) {
                throw new UnsupportedSPARQLStatementException("Attempted to execute a SPARQL statement with a GRAPH clause against a context aware graph.");
            }
            node.setContextVar(contextVar);
        }
    });
}