org.apache.flink.table.runtime.arrow.serializers

类 ArrowSerializer

java.lang.Object

org.apache.flink.table.runtime.arrow.serializers.ArrowSerializer

@Internal
public final class ArrowSerializer
extends Object

The base class ArrowSerializer which will serialize/deserialize RowType data to/from arrow bytes.

字段概要

字段

限定符和类型	字段和说明
protected org.apache.flink.table.types.logical.RowType	inputType The input RowType.
protected org.apache.flink.table.types.logical.RowType	outputType The output RowType.

构造器概要

构造器

构造器和说明
ArrowSerializer(org.apache.flink.table.types.logical.RowType inputType, org.apache.flink.table.types.logical.RowType outputType)

方法概要

限定符和类型	方法和说明
void	close()
ArrowReader	createArrowReader(org.apache.arrow.vector.VectorSchemaRoot root)
ArrowWriter<org.apache.flink.table.data.RowData>	createArrowWriter() Creates an ArrowWriter.
void	finishCurrentBatch() Forces to finish the processing of the current batch of elements.
int	load()
void	open(InputStream bais, OutputStream baos)
org.apache.flink.table.data.RowData	read(int i)
void	resetReader()
void	resetWriter()
void	write(org.apache.flink.table.data.RowData element)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

inputType

protected final org.apache.flink.table.types.logical.RowType inputType

The input RowType.

outputType

protected final org.apache.flink.table.types.logical.RowType outputType

The output RowType.

构造器详细资料

ArrowSerializer

public ArrowSerializer(org.apache.flink.table.types.logical.RowType inputType,
                       org.apache.flink.table.types.logical.RowType outputType)

方法详细资料

open

public void open(InputStream bais,
                 OutputStream baos)
          throws Exception

抛出:

Exception

load

public int load()
         throws IOException

抛出:

IOException

read

public org.apache.flink.table.data.RowData read(int i)

write

public void write(org.apache.flink.table.data.RowData element)

close

public void close()
           throws Exception

抛出:

Exception

createArrowWriter

public ArrowWriter<org.apache.flink.table.data.RowData> createArrowWriter()

Creates an ArrowWriter.

createArrowReader

public ArrowReader createArrowReader(org.apache.arrow.vector.VectorSchemaRoot root)

finishCurrentBatch

public void finishCurrentBatch()
                        throws Exception

Forces to finish the processing of the current batch of elements. It will serialize the batch of elements into one arrow batch.

抛出:

Exception

resetReader

public void resetReader()
                 throws IOException

抛出:

IOException

resetWriter

public void resetWriter()
                 throws IOException

抛出:

IOException