org.apache.flink.table.runtime.typeutils

类 BinaryRowSerializer

java.lang.Object

org.apache.flink.api.common.typeutils.TypeSerializer<T>

org.apache.flink.table.runtime.typeutils.AbstractRowSerializer<BinaryRow>

org.apache.flink.table.runtime.typeutils.BinaryRowSerializer

所有已实现的接口:

Serializable

public class BinaryRowSerializer
extends AbstractRowSerializer<BinaryRow>

Serializer for BinaryRow.

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	BinaryRowSerializer.BinaryRowSerializerSnapshot TypeSerializerSnapshot for BinaryRowSerializer.

字段概要

字段

限定符和类型	字段和说明
static int	LENGTH_SIZE_IN_BYTES

构造器概要

构造器

构造器和说明
BinaryRowSerializer(int numFields)

方法概要

限定符和类型	方法和说明
void	checkSkipReadForFixLengthPart(org.apache.flink.runtime.memory.AbstractPagedInputView source) We need skip bytes to read when the remain bytes of current segment is not enough to write binary row fixed part.
BinaryRow	copy(BinaryRow from)
BinaryRow	copy(BinaryRow from, BinaryRow reuse)
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
void	copyFromPagesToView(org.apache.flink.runtime.memory.AbstractPagedInputView source, org.apache.flink.core.memory.DataOutputView target) Copy a binaryRow which stored in paged input view to output view.
BinaryRow	createInstance()
BinaryRow	deserialize(BinaryRow reuse, org.apache.flink.core.memory.DataInputView source)
BinaryRow	deserialize(org.apache.flink.core.memory.DataInputView source)
BinaryRow	deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView) De-serializes a record from the given source paged input view.
BinaryRow	deserializeFromPages(BinaryRow reuse, org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView) Reuse version of AbstractRowSerializer.deserializeFromPages(AbstractPagedInputView).
org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>	duplicate()
boolean	equals(Object obj)
int	getArity() Get the number of fields.
int	getFixedLengthPartSize()
int	getLength()
int	getSerializedRowFixedPartLength() Return fixed part length to serialize one row.
int	hashCode()
boolean	isImmutableType()
BinaryRow	mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView) Map a record from the given source paged input view.
BinaryRow	mapFromPages(BinaryRow reuse, org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView) Reuse version of AbstractRowSerializer.mapFromPages(AbstractPagedInputView).
void	pointTo(int length, BinaryRow reuse, org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView) Point row to memory segments with offset(in the AbstractPagedInputView) and length.
void	serialize(BinaryRow record, org.apache.flink.core.memory.DataOutputView target)
int	serializeToPages(BinaryRow record, org.apache.flink.runtime.memory.AbstractPagedOutputView headerLessView) Serializes the given record to the given target paged output view.
static void	serializeWithoutLengthSlow(BinaryRow record, org.apache.flink.core.memory.MemorySegmentWritable out)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<BinaryRow>	snapshotConfiguration()
BinaryRow	toBinaryRow(BinaryRow baseRow) Convert a BaseRow to a BinaryRow.

从类继承的方法 java.lang.Object

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

字段详细资料

LENGTH_SIZE_IN_BYTES

public static final int LENGTH_SIZE_IN_BYTES

另请参阅:

常量字段值

构造器详细资料

BinaryRowSerializer

public BinaryRowSerializer(int numFields)

方法详细资料

isImmutableType

public boolean isImmutableType()

指定者:

isImmutableType 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

duplicate

public org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow> duplicate()

指定者:

duplicate 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

createInstance

public BinaryRow createInstance()

指定者:

createInstance 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

copy

public BinaryRow copy(BinaryRow from)

指定者:

copy 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

copy

public BinaryRow copy(BinaryRow from,
                      BinaryRow reuse)

指定者:

copy 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

getLength

public int getLength()

指定者:

getLength 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

serialize

public void serialize(BinaryRow record,
                      org.apache.flink.core.memory.DataOutputView target)
               throws IOException

指定者:

serialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

抛出:

IOException

deserialize

public BinaryRow deserialize(org.apache.flink.core.memory.DataInputView source)
                      throws IOException

指定者:

deserialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

抛出:

IOException

deserialize

public BinaryRow deserialize(BinaryRow reuse,
                             org.apache.flink.core.memory.DataInputView source)
                      throws IOException

指定者:

deserialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

抛出:

IOException

getArity

public int getArity()

从类复制的说明: AbstractRowSerializer

Get the number of fields.

指定者:

getArity 在类中 AbstractRowSerializer<BinaryRow>

toBinaryRow

public BinaryRow toBinaryRow(BinaryRow baseRow)
                      throws IOException

从类复制的说明: AbstractRowSerializer

Convert a BaseRow to a BinaryRow.

指定者:

toBinaryRow 在类中 AbstractRowSerializer<BinaryRow>

抛出:

IOException

serializeToPages

public int serializeToPages(BinaryRow record,
                            org.apache.flink.runtime.memory.AbstractPagedOutputView headerLessView)
                     throws IOException

从类复制的说明: AbstractRowSerializer

Serializes the given record to the given target paged output view. Some implementations may skip some bytes if current page does not have enough space left, .e.g BinaryRow.

指定者:

serializeToPages 在类中 AbstractRowSerializer<BinaryRow>

参数:

record - The record to serialize.

headerLessView - The output view to write the serialized data to.

返回:

Returns the skipped number of bytes.

抛出:

IOException - Thrown, if the serialization encountered an I/O related error. Typically raised by the output view, which may have an underlying I/O channel to which it delegates.

serializeWithoutLengthSlow

public static void serializeWithoutLengthSlow(BinaryRow record,
                                              org.apache.flink.core.memory.MemorySegmentWritable out)
                                       throws IOException

抛出:

IOException

deserializeFromPages

public BinaryRow deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView)
                               throws IOException

从类复制的说明: AbstractRowSerializer

De-serializes a record from the given source paged input view. For consistency with serialize format, some implementations may need to skip some bytes of source before de-serializing, .e.g BinaryRow. Typically, the content read from source should be copied out when de-serializing, and we are not expecting the underlying data from source is reused. If you have such requirement, see AbstractRowSerializer.mapFromPages(AbstractPagedInputView).

指定者:

deserializeFromPages 在类中 AbstractRowSerializer<BinaryRow>

参数:

headerLessView - The input view from which to read the data.

返回:

The de-serialized element.

抛出:

IOException - Thrown, if the de-serialization encountered an I/O related error. Typically raised by the input view, which may have an underlying I/O channel from which it reads.

deserializeFromPages

public BinaryRow deserializeFromPages(BinaryRow reuse,
                                      org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView)
                               throws IOException

从类复制的说明: AbstractRowSerializer

Reuse version of AbstractRowSerializer.deserializeFromPages(AbstractPagedInputView).

指定者:

deserializeFromPages 在类中 AbstractRowSerializer<BinaryRow>

抛出:

IOException

mapFromPages

public BinaryRow mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView)
                       throws IOException

从类复制的说明: AbstractRowSerializer

Map a record from the given source paged input view. This method provides a possibility to achieve zero copy when de-serializing. You can either choose copy or not copy the content read from source, but we encourage to make it zero copy.

If you choose the zero copy way, you have to deal with the lifecycle of the pages properly.

指定者:

mapFromPages 在类中 AbstractRowSerializer<BinaryRow>

参数:

headerLessView - The input view from which to read the data.

返回:

The mapped element.

抛出:

IOException - Thrown, if the de-serialization encountered an I/O related error. Typically raised by the input view, which may have an underlying I/O channel from which it reads.

mapFromPages

public BinaryRow mapFromPages(BinaryRow reuse,
                              org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView)
                       throws IOException

从类复制的说明: AbstractRowSerializer

Reuse version of AbstractRowSerializer.mapFromPages(AbstractPagedInputView).

指定者:

mapFromPages 在类中 AbstractRowSerializer<BinaryRow>

抛出:

IOException

copyFromPagesToView

public void copyFromPagesToView(org.apache.flink.runtime.memory.AbstractPagedInputView source,
                                org.apache.flink.core.memory.DataOutputView target)
                         throws IOException

Copy a binaryRow which stored in paged input view to output view.

参数:

source - source paged input view where the binary row stored

target - the target output view.

抛出:

IOException

pointTo

public void pointTo(int length,
                    BinaryRow reuse,
                    org.apache.flink.runtime.memory.AbstractPagedInputView headerLessView)
             throws IOException

Point row to memory segments with offset(in the AbstractPagedInputView) and length.

参数:

length - row length.

reuse - reuse BinaryRow object.

headerLessView - source memory segments container.

抛出:

IOException

checkSkipReadForFixLengthPart

public void checkSkipReadForFixLengthPart(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                                   throws IOException

We need skip bytes to read when the remain bytes of current segment is not enough to write binary row fixed part. See BinaryRow.

抛出:

IOException

getSerializedRowFixedPartLength

public int getSerializedRowFixedPartLength()

Return fixed part length to serialize one row.

getFixedLengthPartSize

public int getFixedLengthPartSize()

copy

public void copy(org.apache.flink.core.memory.DataInputView source,
                 org.apache.flink.core.memory.DataOutputView target)
          throws IOException

指定者:

copy 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

抛出:

IOException

equals

public boolean equals(Object obj)

指定者:

equals 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

hashCode

public int hashCode()

指定者:

hashCode 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>

snapshotConfiguration

public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<BinaryRow> snapshotConfiguration()

指定者:

snapshotConfiguration 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<BinaryRow>