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