getGridBLOBData

TilePoistion.java

private byte[] getGridBLOBData(TilePosition tilePosition) {
    String[] columns = { "grid" };
    String[] args = { Integer.toString(tilePosition.getZoom()), Integer.toString(tilePosition.getX()), Integer.toString(tilePosition.getY()) };
    Cursor cursor = this.db.query("grids", columns, "zoom_level=? AND tile_column=? AND tile_row=?", args, null, null, null);
    if (cursor == null || cursor.getCount() == 0)
        return null;
    cursor.moveToFirst();
    byte[] data = cursor.getBlob(0);
    cursor.close();
    return data;
}