org.apache.flink.runtime.io.network.partition

接口 SortBuffer

所有已知实现类:

PartitionSortedBuffer

public interface SortBuffer

Data of different channels can be appended to a SortBuffer and after the SortBuffer is finished, the appended data can be copied from it in channel index order.

方法概要

限定符和类型	方法和说明
boolean	append(ByteBuffer source, int targetChannel, Buffer.DataType dataType) Appends data of the specified channel to this SortBuffer and returns true if all bytes of the source buffer is copied to this SortBuffer successfully, otherwise if returns false, nothing will be copied.
BufferWithChannel	copyIntoSegment(org.apache.flink.core.memory.MemorySegment target) Copies data in this SortBuffer to the target MemorySegment in channel index order and returns BufferWithChannel which contains the copied data and the corresponding channel index.
void	finish() Finishes this SortBuffer which means no record can be appended any more.
boolean	hasRemaining() Returns true if there is still data can be consumed in this SortBuffer.
boolean	isFinished() Whether this SortBuffer is finished or not.
boolean	isReleased() Whether this SortBuffer is released or not.
long	numBytes() Returns the number of bytes written to this SortBuffer.
long	numRecords() Returns the number of records written to this SortBuffer.
void	release() Releases this SortBuffer which releases all resources.

方法详细资料

append

boolean append(ByteBuffer source,
               int targetChannel,
               Buffer.DataType dataType)
        throws IOException

Appends data of the specified channel to this SortBuffer and returns true if all bytes of the source buffer is copied to this SortBuffer successfully, otherwise if returns false, nothing will be copied.

抛出:

IOException

copyIntoSegment

BufferWithChannel copyIntoSegment(org.apache.flink.core.memory.MemorySegment target)

Copies data in this SortBuffer to the target MemorySegment in channel index order and returns BufferWithChannel which contains the copied data and the corresponding channel index.

numRecords

long numRecords()

Returns the number of records written to this SortBuffer.

numBytes

long numBytes()

Returns the number of bytes written to this SortBuffer.

hasRemaining

boolean hasRemaining()

Returns true if there is still data can be consumed in this SortBuffer.

finish

void finish()

Finishes this SortBuffer which means no record can be appended any more.

isFinished

boolean isFinished()

Whether this SortBuffer is finished or not.

release

void release()

Releases this SortBuffer which releases all resources.

isReleased

boolean isReleased()

Whether this SortBuffer is released or not.