/** 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;
}
}
@Override
public String visitInputRef(RexInputRef rexInputRef) {
String name = reserveName();
String typeName = javaTypeName(rexInputRef);
pw.print(
String.format(
"%s %s = (%s)(_data.get(%d));\n", typeName, name, typeName, rexInputRef.getIndex()));
return name;
}
@Override
public Void visitInputRef(RexInputRef inputRef) {
inputRefSet.add(inputRef.getIndex());
return null;
}