/** Translates a call to a binary operator. Returns whether successful. */
private boolean translateBinary2(String op, RexNode left, RexNode right) {
switch (right.getKind()) {
case LITERAL:
break;
default:
return false;
}
final RexLiteral rightLiteral = (RexLiteral) right;
switch (left.getKind()) {
case INPUT_REF:
final RexInputRef left1 = (RexInputRef) left;
String name = fieldNames.get(left1.getIndex());
translateOp2(op, name, rightLiteral);
return true;
case CAST:
return translateBinary2(op, ((RexCall) left).operands.get(0), right);
case OTHER_FUNCTION:
String itemName = MongoRules.isItem((RexCall) left);
if (itemName != null) {
translateOp2(op, itemName, rightLiteral);
return true;
}
// fall through
default:
return false;
}
}
public void implement(Implementor implementor) {
implementor.visitChild(0, getInput());
Translator translator = new Translator(MongoRules.mongoFieldNames(getRowType()));
String match = translator.translateMatch(condition);
implementor.add(null, match);
}