org.apache.flink.table.data.writer

接口 BinaryWriter

所有已知实现类:

BinaryArrayWriter, BinaryRowWriter

@Internal
public interface BinaryWriter

Writer to write a composite data format, like row, array. 1. Invoke reset(). 2. Write each field by writeXX or setNullAt. (Same field can not be written repeatedly.) 3. Invoke complete().

嵌套类概要

嵌套类

限定符和类型	接口和说明
static interface	BinaryWriter.ValueSetter Accessor for setting the elements of an array writer during runtime.

方法概要

限定符和类型	方法和说明
void	complete() Finally, complete write to set real size to binary.
static BinaryWriter.ValueSetter	createValueSetter(org.apache.flink.table.types.logical.LogicalType elementType) Creates an accessor for setting the elements of an array writer during runtime.
void	reset() Reset writer to prepare next write.
void	setNullAt(int pos) Set null to this field.
static void	write(BinaryWriter writer, int pos, Object o, org.apache.flink.table.types.logical.LogicalType type, org.apache.flink.api.common.typeutils.TypeSerializer<?> serializer) 已过时。 Use createValueSetter(LogicalType) for avoiding logical types during runtime.
void	writeArray(int pos, org.apache.flink.table.data.ArrayData value, ArrayDataSerializer serializer)
void	writeBinary(int pos, byte[] bytes)
void	writeBoolean(int pos, boolean value)
void	writeByte(int pos, byte value)
void	writeDecimal(int pos, org.apache.flink.table.data.DecimalData value, int precision)
void	writeDouble(int pos, double value)
void	writeFloat(int pos, float value)
void	writeInt(int pos, int value)
void	writeLong(int pos, long value)
void	writeMap(int pos, org.apache.flink.table.data.MapData value, MapDataSerializer serializer)
void	writeRawValue(int pos, org.apache.flink.table.data.RawValueData<?> value, RawValueDataSerializer<?> serializer)
void	writeRow(int pos, org.apache.flink.table.data.RowData value, RowDataSerializer serializer)
void	writeShort(int pos, short value)
void	writeString(int pos, org.apache.flink.table.data.StringData value)
void	writeTimestamp(int pos, org.apache.flink.table.data.TimestampData value, int precision)

方法详细资料

reset

void reset()

Reset writer to prepare next write.

setNullAt

void setNullAt(int pos)

Set null to this field.

writeBoolean

void writeBoolean(int pos,
                  boolean value)

writeByte

void writeByte(int pos,
               byte value)

writeShort

void writeShort(int pos,
                short value)

writeInt

void writeInt(int pos,
              int value)

writeLong

void writeLong(int pos,
               long value)

writeFloat

void writeFloat(int pos,
                float value)

writeDouble

void writeDouble(int pos,
                 double value)

writeString

void writeString(int pos,
                 org.apache.flink.table.data.StringData value)

writeBinary

void writeBinary(int pos,
                 byte[] bytes)

writeDecimal

void writeDecimal(int pos,
                  org.apache.flink.table.data.DecimalData value,
                  int precision)

writeTimestamp

void writeTimestamp(int pos,
                    org.apache.flink.table.data.TimestampData value,
                    int precision)

writeArray

void writeArray(int pos,
                org.apache.flink.table.data.ArrayData value,
                ArrayDataSerializer serializer)

writeMap

void writeMap(int pos,
              org.apache.flink.table.data.MapData value,
              MapDataSerializer serializer)

writeRow

void writeRow(int pos,
              org.apache.flink.table.data.RowData value,
              RowDataSerializer serializer)

writeRawValue

void writeRawValue(int pos,
                   org.apache.flink.table.data.RawValueData<?> value,
                   RawValueDataSerializer<?> serializer)

complete

void complete()

Finally, complete write to set real size to binary.

write

@Deprecated
static void write(BinaryWriter writer,
                              int pos,
                              Object o,
                              org.apache.flink.table.types.logical.LogicalType type,
                              org.apache.flink.api.common.typeutils.TypeSerializer<?> serializer)

已过时。 Use createValueSetter(LogicalType) for avoiding logical types during runtime.

createValueSetter

static BinaryWriter.ValueSetter createValueSetter(org.apache.flink.table.types.logical.LogicalType elementType)

Creates an accessor for setting the elements of an array writer during runtime.

参数:

elementType - the element type of the array