SQL & PL/SQL :: Access Attributes Of Objects Of Nested Table In Member Function Of Oracle Database

I have created two types and a list of the first type:

create type type1;
/
create type type1_list as table of ref type1;
/
create type type2;
/

I have now just created the two types as follows:

create type type1 as object(
id# number
);
/
create type type2 as object(
attribute1 type1_list,
MEMBER FUNCTION function1 RETURN NUMBER
);
/

Ok, I've created the tables (I don't know if it's necessary to point out my problem)

CREATE TABLE type1_table OF type1;
/
CREATE TABLE type2_table OF type2
NESTED TABLE attribute1 STORE AS nested_type1_list_table;
/

And what I wanted to do now is to implement the member function1 and check something of the attributes of type1 in the list of attribute1... And that's where my question occurs, how does it work, I can't figure it out. I tried something like this:

Quote:
create or replace
TYPE BODY type2 AS
MEMBER FUNCTION function1 RETURN NUMBER AS

[Code]....

But I don't get the right way, it doesn't work