org.apache.hadoop.hbase.io

接口 CellOutputStream

所有已知子接口:

Codec.Encoder

所有已知实现类:

BaseEncoder, KeyValueCodec.KeyValueEncoder, KeyValueCodecWithTags.KeyValueEncoder

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public interface CellOutputStream

Accepts a stream of Cells. This can be used to build a block of cells during compactions and flushes, or to build a byte[] to send to the client. This could be backed by a List<KeyValue>, but more efficient implementations will append results to a byte[] to eliminate overhead, and possibly encode the cells further.

To read Cells, use CellScanner

另请参阅:

CellScanner

方法概要

限定符和类型	方法和说明
void	flush() Let the implementation decide what to do.
void	write(Cell cell) Implementation must copy the entire state of the Cell.

方法详细资料

write

void write(Cell cell)
    throws IOException

Implementation must copy the entire state of the Cell. If the written Cell is modified immediately after the write method returns, the modifications must have absolutely no effect on the copy of the Cell that was added in the write.

参数:

cell - Cell to write out

抛出:

IOException

flush

void flush()
    throws IOException

Let the implementation decide what to do. Usually means writing accumulated data into a byte[] that can then be read from the implementation to be sent to disk, put in the block cache, or sent over the network.

抛出:

IOException