org.apache.flink.table.dataformat

类 AbstractBinaryWriter

java.lang.Object

org.apache.flink.table.dataformat.AbstractBinaryWriter

所有已实现的接口:

BinaryWriter

直接已知子类:

BinaryArrayWriter, BinaryRowWriter

public abstract class AbstractBinaryWriter
extends Object
implements BinaryWriter

Use the special format to write data to a MemorySegment (its capacity grows automatically).

If write a format binary: 1. New a writer. 2. Write each field by writeXX or setNullAt. (Variable length fields can not be written repeatedly.) 3. Invoke BinaryWriter.complete().

If want to reuse this writer, please invoke BinaryWriter.reset() first.

字段概要

字段

限定符和类型	字段和说明
protected int	cursor
protected org.apache.flink.core.memory.DataOutputViewStreamWrapper	outputView
protected org.apache.flink.core.memory.MemorySegment	segment

构造器概要

构造器

构造器和说明
AbstractBinaryWriter()

方法概要

限定符和类型	方法和说明
protected abstract void	afterGrow() After grow, need point to new memory.
protected void	ensureCapacity(int neededSize)
protected abstract int	getFieldOffset(int pos) Get field offset.
protected static int	roundNumberOfBytesToNearestWord(int numBytes)
protected abstract void	setNullBit(int ordinal)
protected abstract void	setOffsetAndSize(int pos, int offset, long size) Set offset and size to fix len part.
void	writeArray(int pos, BaseArray input, BaseArraySerializer serializer)
void	writeBinary(int pos, byte[] bytes)
void	writeDecimal(int pos, Decimal value, int precision)
void	writeGeneric(int pos, BinaryGeneric input, BinaryGenericSerializer serializer)
void	writeMap(int pos, BaseMap input, BaseMapSerializer serializer)
void	writeRow(int pos, BaseRow input, BaseRowSerializer serializer)
void	writeString(int pos, BinaryString input) See BinaryFormat.readBinaryStringFieldFromSegments(org.apache.flink.core.memory.MemorySegment[], int, int, long).
void	writeTimestamp(int pos, SqlTimestamp value, int precision)
protected void	zeroOutPaddingBytes(int numBytes)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.table.dataformat.BinaryWriter

complete, reset, setNullAt, write, writeBoolean, writeByte, writeDouble, writeFloat, writeInt, writeLong, writeShort

字段详细资料

segment

protected org.apache.flink.core.memory.MemorySegment segment

cursor

protected int cursor

outputView

protected org.apache.flink.core.memory.DataOutputViewStreamWrapper outputView

构造器详细资料

AbstractBinaryWriter

public AbstractBinaryWriter()

方法详细资料

setOffsetAndSize

protected abstract void setOffsetAndSize(int pos,
                                         int offset,
                                         long size)

Set offset and size to fix len part.

getFieldOffset

protected abstract int getFieldOffset(int pos)

Get field offset.

afterGrow

protected abstract void afterGrow()

After grow, need point to new memory.

setNullBit

protected abstract void setNullBit(int ordinal)

writeString

public void writeString(int pos,
                        BinaryString input)

See BinaryFormat.readBinaryStringFieldFromSegments(org.apache.flink.core.memory.MemorySegment[], int, int, long).

指定者:

writeString 在接口中 BinaryWriter

writeArray

public void writeArray(int pos,
                       BaseArray input,
                       BaseArraySerializer serializer)

指定者:

writeArray 在接口中 BinaryWriter

writeMap

public void writeMap(int pos,
                     BaseMap input,
                     BaseMapSerializer serializer)

指定者:

writeMap 在接口中 BinaryWriter

writeGeneric

public void writeGeneric(int pos,
                         BinaryGeneric input,
                         BinaryGenericSerializer serializer)

指定者:

writeGeneric 在接口中 BinaryWriter

writeRow

public void writeRow(int pos,
                     BaseRow input,
                     BaseRowSerializer serializer)

指定者:

writeRow 在接口中 BinaryWriter

writeBinary

public void writeBinary(int pos,
                        byte[] bytes)

指定者:

writeBinary 在接口中 BinaryWriter

writeDecimal

public void writeDecimal(int pos,
                         Decimal value,
                         int precision)

指定者:

writeDecimal 在接口中 BinaryWriter

writeTimestamp

public void writeTimestamp(int pos,
                           SqlTimestamp value,
                           int precision)

指定者:

writeTimestamp 在接口中 BinaryWriter

zeroOutPaddingBytes

protected void zeroOutPaddingBytes(int numBytes)

ensureCapacity

protected void ensureCapacity(int neededSize)

roundNumberOfBytesToNearestWord

protected static int roundNumberOfBytesToNearestWord(int numBytes)