org.apache.flink.table.runtime.typeutils

类 RowDataSerializer

java.lang.Object

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

org.apache.flink.table.runtime.typeutils.AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.typeutils.RowDataSerializer

所有已实现的接口:

Serializable

@Internal
public class RowDataSerializer
extends AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

Serializer for RowData.

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	RowDataSerializer.RowDataSerializerSnapshot TypeSerializerSnapshot for BinaryRowDataSerializer.

构造器概要

构造器

构造器和说明
RowDataSerializer(org.apache.flink.api.common.ExecutionConfig config, org.apache.flink.table.types.logical.LogicalType... types)
RowDataSerializer(org.apache.flink.api.common.ExecutionConfig config, org.apache.flink.table.types.logical.RowType rowType)
RowDataSerializer(org.apache.flink.table.types.logical.LogicalType[] types, org.apache.flink.api.common.typeutils.TypeSerializer<?>[] fieldSerializers)

方法概要

限定符和类型	方法和说明
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.table.data.RowData	copy(org.apache.flink.table.data.RowData from)
org.apache.flink.table.data.RowData	copy(org.apache.flink.table.data.RowData from, org.apache.flink.table.data.RowData reuse)
org.apache.flink.table.data.RowData	createInstance()
org.apache.flink.table.data.RowData	deserialize(org.apache.flink.core.memory.DataInputView source)
org.apache.flink.table.data.RowData	deserialize(org.apache.flink.table.data.RowData reuse, org.apache.flink.core.memory.DataInputView source)
org.apache.flink.table.data.RowData	deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source) De-serializes a record from the given source paged input view.
org.apache.flink.table.data.RowData	deserializeFromPages(org.apache.flink.table.data.RowData reuse, org.apache.flink.runtime.memory.AbstractPagedInputView source) Reuse version of AbstractRowDataSerializer.deserializeFromPages(AbstractPagedInputView).
org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>	duplicate()
boolean	equals(Object obj)
int	getArity() Get the number of fields.
int	getLength()
int	hashCode()
boolean	isImmutableType()
org.apache.flink.table.data.RowData	mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source) Map a record from the given source paged input view.
org.apache.flink.table.data.RowData	mapFromPages(org.apache.flink.table.data.RowData reuse, org.apache.flink.runtime.memory.AbstractPagedInputView source) Reuse version of AbstractRowDataSerializer.mapFromPages(AbstractPagedInputView).
void	serialize(org.apache.flink.table.data.RowData row, org.apache.flink.core.memory.DataOutputView target)
int	serializeToPages(org.apache.flink.table.data.RowData row, org.apache.flink.runtime.memory.AbstractPagedOutputView target) Serializes the given record to the given target paged output view.
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<org.apache.flink.table.data.RowData>	snapshotConfiguration()
org.apache.flink.table.data.binary.BinaryRowData	toBinaryRow(org.apache.flink.table.data.RowData row) Convert RowData into BinaryRowData.

从类继承的方法 java.lang.Object

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

构造器详细资料

RowDataSerializer

public RowDataSerializer(org.apache.flink.api.common.ExecutionConfig config,
                         org.apache.flink.table.types.logical.RowType rowType)

RowDataSerializer

public RowDataSerializer(org.apache.flink.api.common.ExecutionConfig config,
                         org.apache.flink.table.types.logical.LogicalType... types)

RowDataSerializer

public RowDataSerializer(org.apache.flink.table.types.logical.LogicalType[] types,
                         org.apache.flink.api.common.typeutils.TypeSerializer<?>[] fieldSerializers)

方法详细资料

duplicate

public org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData> duplicate()

指定者:

duplicate 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

createInstance

public org.apache.flink.table.data.RowData createInstance()

指定者:

createInstance 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

serialize

public void serialize(org.apache.flink.table.data.RowData row,
                      org.apache.flink.core.memory.DataOutputView target)
               throws IOException

指定者:

serialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

抛出:

IOException

deserialize

public org.apache.flink.table.data.RowData deserialize(org.apache.flink.core.memory.DataInputView source)
                                                throws IOException

指定者:

deserialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

抛出:

IOException

deserialize

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

指定者:

deserialize 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

抛出:

IOException

copy

public org.apache.flink.table.data.RowData copy(org.apache.flink.table.data.RowData from)

指定者:

copy 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

copy

public org.apache.flink.table.data.RowData copy(org.apache.flink.table.data.RowData from,
                                                org.apache.flink.table.data.RowData reuse)

指定者:

copy 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

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<org.apache.flink.table.data.RowData>

抛出:

IOException

getArity

public int getArity()

从类复制的说明: AbstractRowDataSerializer

Get the number of fields.

指定者:

getArity 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

toBinaryRow

public org.apache.flink.table.data.binary.BinaryRowData toBinaryRow(org.apache.flink.table.data.RowData row)

Convert RowData into BinaryRowData. TODO modify it to code gen.

指定者:

toBinaryRow 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

serializeToPages

public int serializeToPages(org.apache.flink.table.data.RowData row,
                            org.apache.flink.runtime.memory.AbstractPagedOutputView target)
                     throws IOException

从类复制的说明: AbstractRowDataSerializer

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 BinaryRowData.

指定者:

serializeToPages 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

参数:

row - The record to serialize.

target - 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.

deserializeFromPages

public org.apache.flink.table.data.RowData deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                                                         throws IOException

从类复制的说明: AbstractRowDataSerializer

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 BinaryRowData. 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 AbstractRowDataSerializer.mapFromPages(AbstractPagedInputView).

指定者:

deserializeFromPages 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

参数:

source - 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 org.apache.flink.table.data.RowData deserializeFromPages(org.apache.flink.table.data.RowData reuse,
                                                                org.apache.flink.runtime.memory.AbstractPagedInputView source)
                                                         throws IOException

从类复制的说明: AbstractRowDataSerializer

Reuse version of AbstractRowDataSerializer.deserializeFromPages(AbstractPagedInputView).

指定者:

deserializeFromPages 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

抛出:

IOException

mapFromPages

public org.apache.flink.table.data.RowData mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                                                 throws IOException

从类复制的说明: AbstractRowDataSerializer

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 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

参数:

source - 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 org.apache.flink.table.data.RowData mapFromPages(org.apache.flink.table.data.RowData reuse,
                                                        org.apache.flink.runtime.memory.AbstractPagedInputView source)
                                                 throws IOException

从类复制的说明: AbstractRowDataSerializer

Reuse version of AbstractRowDataSerializer.mapFromPages(AbstractPagedInputView).

指定者:

mapFromPages 在类中 AbstractRowDataSerializer<org.apache.flink.table.data.RowData>

抛出:

IOException

equals

public boolean equals(Object obj)

指定者:

equals 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

hashCode

public int hashCode()

指定者:

hashCode 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

isImmutableType

public boolean isImmutableType()

指定者:

isImmutableType 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

getLength

public int getLength()

指定者:

getLength 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>

snapshotConfiguration

public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<org.apache.flink.table.data.RowData> snapshotConfiguration()

指定者:

snapshotConfiguration 在类中 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData>