@Override
    public Tile getTile(int x, int y, int zoom) {

        Tile tile = null;

        // Check if there is a tile
        if (hasTile(x, y, zoom)) {

            // Retrieve the tile
            tile = retrieveTile(x, y, zoom);
        }

        return tile;
    }
@ Override public Tile getTile ( int x , int y , int zoom ) { Tile tile = null ; if ( hasTile ( x , y , zoom ) ) { tile = retrieveTile ( x , y , zoom ) ; } return tile ; }
{@inheritDoc}