class MyAdapter extends SimpleCursorTreeAdapter {

		public MyAdapter(Context context, Cursor cursor, int groupLayout,
				String[] groupFrom, int[] groupTo, int childLayout,
				String[] childFrom, int[] childTo, int settingsLayout, String[] settingsFrom, int[] settingsTo) {
			super(context, cursor, groupLayout, childLayout, childFrom, childTo, settingsLayout,settingsFrom, settingsTo);
		}

		protected Cursor getChildrenCursor(Cursor groupCursor) {
			int idColumn = groupCursor.getColumnIndex(DB.COMPANY_COLUMN_ID); 
			return db.getPhoneData(groupCursor.getInt(idColumn));
		}
		
		protected Cursor getPhoneChildrenCursor(Cursor groupCursor) {
			int idColumn = groupCursor.getColumnIndex(DB.PHONE_COLUMN_ID);
			return db.getPhoneSettingsData(groupCursor.getInt(idColumn));
		}
	}