how to get all elements of an ArrayAdapter?

I need get all elements of ArrayAdapter of an ListView.

Like this:

    this.array = new ArrayAdapter<DocumentoDominiabilidade>(getActivity(),
            android.R.layout.simple_list_item_1);
    this.documentosDominiabilidade.setAdapter(array);

// after many operations

this.array.getAllElements() // return a List of Elements????

thank you