Re: Table + LuaJava

["Robert G. Jakabosky" <bobby@...>]

On Monday 08, Anselmo Junior wrote:
> Hello folks,
>
> I'm new in Lua and i need some help with tables in lua and java interchange

What java API/bindings are you using to access Lua?

> In Lua script I made like that:
>
> --init
> function init()
>     local t = {}
>     t[03] = "3"
>     t[11] = "19"
>     t[12] = "25"
>     return trn
> end

Those are numeric keys.
That table will contain:
{
[3] = "3",
[11] = "19",
[12] = "25"
}

Also the return is using the wrong variable name.

>
> And java I made:
>
>     public void test() {
>         state.getGlobal("init");
>         state.call(0, 1);
>         LuaObject lo = state.getLuaObject(1);
>         state.pop(1);
>         try {
>             lo.getField("03");
>             System.out.println(lo.getField("03").getNumber());
>         } catch (LuaException e) {
>             e.printStackTrace();
>         }
>     }
>
> "state" is a LuaState object that have been instanciate in Class
> Constructor.
> "lo" returned a Lua Table, but if I pass getField("03") returned nil value

Here you are trying to get a string key "03" from a table that only has 
numeric keys.  I don't know what Java API you are using to access Lua, but 
there should be a way to get numeric keys from the table.

> But i really need get not only the value of the table, but the keys too...
> because the keys will be random. Get the table's keys in java code it is
> possible?
>
> I will appreciate if anyone could help me...


-- 
Robert G. Jakabosky