public void visit(LOOr binOp) throws VisitorException {
ExpressionOperator left = binOp.getLhsOperand();
ExpressionOperator right = binOp.getRhsOperand();
OrExpression ae = new OrExpression(exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
exprOpsMap.put(binOp, ae);
}