What is the best way to organize a factory method?

Question

Java

The task is this: a factory method is used to determine a specific implementation, something like this:

public static BaseCommand get(String cmd) throws CMDException {
        if (All.CMD.equalsIgnoreCase(cmd)) return new All();
        ...
        throw new CMDException(String.format("No suitable command for '%s'", cmd));
    }

This method began to grow actively, what is the best way to reproject, not to do a hundred if or a giant switch?
I have an idea to do on annotations

Answer 1

As an option - Map

Answer 2

General table of photos and three tables of links with tours, tourists and instructors.

Answer 3

Indicate the type, that is, you have tours, tourists, etc. ... that is, the id transfer is repeated for tourists and tours, but they have different types and make a selection not by id, but by id and type