Java Development Tools

I am trying to implement a PL/SQL Entity Object according to section "26.4 Basing an Entity Object on a PL/SQL Package API" of ADF BC User Guide.

I am also looking at Steve example "36. Composite Entity Using Stored Procedure API to Create/Modify/Remove Master and Children"

However in my case the Select operation must also be done through a PL/SQL.

Section "26.4.5 Adding Select and Lock Handling" says to override method doSelect().
So I started by adding the following to the EntityImpl class:

protected void doSelect(boolean b) {
System.err.println("doSelect");
super.doSelect(b);
}

...however that method it's not being called (at least when I test it through the BC tester).

Which method(s) should I override to get the desired behavior ? Any available example ?

Thanks,
Claudio.