public SqlRexConvertlet get(SqlCall call) { SqlRexConvertlet convertlet; final SqlOperator op = call.getOperator(); // Is there a convertlet for this operator // (e.g. SqlStdOperatorTable.plusOperator)? convertlet = (SqlRexConvertlet) map.get(op); if (convertlet != null) { return convertlet; } // Is there a convertlet for this class of operator // (e.g. SqlBinaryOperator)? Class<? extends Object> clazz = op.getClass(); while (clazz != null) { convertlet = (SqlRexConvertlet) map.get(clazz); if (convertlet != null) { return convertlet; } clazz = clazz.getSuperclass(); } // Is there a convertlet for this class of expression // (e.g. SqlCall)? clazz = call.getClass(); while (clazz != null) { convertlet = (SqlRexConvertlet) map.get(clazz); if (convertlet != null) { return convertlet; } clazz = clazz.getSuperclass(); } return null; }
private List<Object> explainInputs(List<RelNode> inputs) { final List<Object> list = jsonBuilder.list(); for (RelNode input : inputs) { String id = relIdMap.get(input); if (id == null) { input.explain(this); id = previousId; } list.add(id); } return list; }
protected RexNode lookup(RexNode expr) { return mapDigestToExpr.get(expr.toString()); }