import org.apache.cassandra.io.util.ColumnSortedMap; //导入依赖的package包/类
public IColumn deserialize(DataInput dis, ColumnFamilyStore interner, boolean fromRemote, int expireBefore) throws IOException
{
    ByteBuffer name = ByteBufferUtil.readWithShortLength(dis);
    int localDeleteTime = dis.readInt();
    if (localDeleteTime != Integer.MIN_VALUE && localDeleteTime <= 0)
    {
        throw new IOException("Invalid localDeleteTime read: " + localDeleteTime);
    }
    long markedForDeleteAt = dis.readLong();

    /* read the number of columns */
    int size = dis.readInt();
    ColumnSerializer serializer = Column.serializer();
    ColumnSortedMap preSortedMap = new ColumnSortedMap(comparator, serializer, dis, interner, size, fromRemote, expireBefore);
    SuperColumn superColumn = new SuperColumn(name, new ConcurrentSkipListMap<ByteBuffer,IColumn>(preSortedMap));
    if (localDeleteTime != Integer.MIN_VALUE && localDeleteTime <= 0)
    {
        throw new IOException("Invalid localDeleteTime read: " + localDeleteTime);
    }
    superColumn.markForDeleteAt(localDeleteTime, markedForDeleteAt);
    return superColumn;
}