org.apache.flink.table.runtime.typeutils

类 BaseRowSerializer

java.lang.Object

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

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

org.apache.flink.table.runtime.typeutils.BaseRowSerializer

所有已实现的接口:

Serializable

public class BaseRowSerializer
extends AbstractRowSerializer<BaseRow>

Serializer for BaseRow.

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	BaseRowSerializer.BaseRowSerializerSnapshot TypeSerializerSnapshot for BinaryRowSerializer.

构造器概要

构造器

构造器和说明
BaseRowSerializer(org.apache.flink.api.common.ExecutionConfig config, org.apache.flink.table.types.logical.LogicalType... types)
BaseRowSerializer(org.apache.flink.api.common.ExecutionConfig config, org.apache.flink.table.types.logical.RowType rowType)
BaseRowSerializer(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
BaseRow	copy(BaseRow from)
BaseRow	copy(BaseRow from, BaseRow reuse)
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
BaseRow	createInstance()
BaseRow	deserialize(BaseRow reuse, org.apache.flink.core.memory.DataInputView source)
BaseRow	deserialize(org.apache.flink.core.memory.DataInputView source)
BaseRow	deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source) De-serializes a record from the given source paged input view.
BaseRow	deserializeFromPages(BaseRow reuse, org.apache.flink.runtime.memory.AbstractPagedInputView source) Reuse version of AbstractRowSerializer.deserializeFromPages(AbstractPagedInputView).
org.apache.flink.api.common.typeutils.TypeSerializer<BaseRow>	duplicate()
boolean	equals(Object obj)
int	getArity() Get the number of fields.
int	getLength()
int	hashCode()
boolean	isImmutableType()
BaseRow	mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source) Map a record from the given source paged input view.
BaseRow	mapFromPages(BaseRow reuse, org.apache.flink.runtime.memory.AbstractPagedInputView source) Reuse version of AbstractRowSerializer.mapFromPages(AbstractPagedInputView).
void	serialize(BaseRow row, org.apache.flink.core.memory.DataOutputView target)
int	serializeToPages(BaseRow 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<BaseRow>	snapshotConfiguration()
BinaryRow	toBinaryRow(BaseRow row) Convert base row to binary row.

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

BaseRowSerializer

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

BaseRowSerializer

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

BaseRowSerializer

public BaseRowSerializer(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<BaseRow> duplicate()

指定者:

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

createInstance

public BaseRow createInstance()

指定者:

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

serialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

copy

public BaseRow copy(BaseRow from)

指定者:

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

copy

public BaseRow copy(BaseRow from,
                    BaseRow reuse)

指定者:

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

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<BaseRow>

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<BaseRow>

toBinaryRow

public BinaryRow toBinaryRow(BaseRow row)

Convert base row to binary row. TODO modify it to code gen.

指定者:

toBinaryRow 在类中 AbstractRowSerializer<BaseRow>

serializeToPages

public int serializeToPages(BaseRow row,
                            org.apache.flink.runtime.memory.AbstractPagedOutputView target)
                     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<BaseRow>

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 BaseRow deserializeFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                             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<BaseRow>

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 BaseRow deserializeFromPages(BaseRow reuse,
                                    org.apache.flink.runtime.memory.AbstractPagedInputView source)
                             throws IOException

从类复制的说明: AbstractRowSerializer

Reuse version of AbstractRowSerializer.deserializeFromPages(AbstractPagedInputView).

指定者:

deserializeFromPages 在类中 AbstractRowSerializer<BaseRow>

抛出:

IOException

mapFromPages

public BaseRow mapFromPages(org.apache.flink.runtime.memory.AbstractPagedInputView source)
                     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<BaseRow>

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 BaseRow mapFromPages(BaseRow reuse,
                            org.apache.flink.runtime.memory.AbstractPagedInputView source)
                     throws IOException

从类复制的说明: AbstractRowSerializer

Reuse version of AbstractRowSerializer.mapFromPages(AbstractPagedInputView).

指定者:

mapFromPages 在类中 AbstractRowSerializer<BaseRow>

抛出:

IOException

equals

public boolean equals(Object obj)

指定者:

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

hashCode

public int hashCode()

指定者:

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

isImmutableType

public boolean isImmutableType()

指定者:

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

getLength

public int getLength()

指定者:

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

snapshotConfiguration

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

指定者:

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