/** Rewrite left and right */
@Override
public void visit(final OpUnion opUnion) {
if (LOG.isDebugEnabled()) {
LOG.debug("Starting visiting OpUnion");
}
final OpRewriter rewriter = new OpRewriter(securityEvaluator, graphIRI);
addOp(OpUnion.create(rewriteOp2(opUnion, rewriter), rewriter.getResult()));
}
