RowDataSerializer (Flink : Table : Runtime 1.14.6 API)

java.lang.Object
- org.apache.flink.api.common.typeutils.TypeSerializer<T>
- - org.apache.flink.table.runtime.typeutils.PagedTypeSerializer<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.

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

方法概要

所有方法实例方法具体方法
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 `PagedTypeSerializer.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.table.data.RowData reuse, org.apache.flink.runtime.memory.AbstractPagedInputView source)` Map a reused record from the given source paged input view.
`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.
`void`	`skipRecordFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)` Skip over bytes of one record from the paged input view, discarding the skipped bytes.
`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.table.types.logical.RowType rowType)
```
  - RowDataSerializer
```
public RowDataSerializer(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: PagedTypeSerializer
    
    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 PagedTypeSerializer<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: PagedTypeSerializer
    
    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 #mapFromPages(T, AbstractPagedInputView).
    
    指定者:
    
    deserializeFromPages 在类中 PagedTypeSerializer<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: PagedTypeSerializer
    
    Reuse version of PagedTypeSerializer.deserializeFromPages(AbstractPagedInputView).
    
    指定者:
    
    deserializeFromPages 在类中 PagedTypeSerializer<org.apache.flink.table.data.RowData>
    
    抛出:
    
    IOException
  - 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: PagedTypeSerializer
    
    Map a reused 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 PagedTypeSerializer<org.apache.flink.table.data.RowData>
    
    参数:
    
    reuse - the reused record to be mapped
    
    source - The input view from which to read the data.
    
    返回:
    
    The mapped record.
    
    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.
  - skipRecordFromPages
```
public void skipRecordFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                         throws IOException
```
    从类复制的说明: PagedTypeSerializer
    
    Skip over bytes of one record from the paged input view, discarding the skipped bytes.
    
    指定者:
    
    skipRecordFromPages 在类中 PagedTypeSerializer<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>

类 RowDataSerializer

嵌套类概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

RowDataSerializer

RowDataSerializer

RowDataSerializer

方法详细资料

duplicate

createInstance

serialize

deserialize

deserialize

copy

copy

copy

getArity

toBinaryRow

serializeToPages

deserializeFromPages

deserializeFromPages

mapFromPages

skipRecordFromPages

equals

hashCode

isImmutableType

getLength

snapshotConfiguration