org.apache.flink.table.dataview

类 NullSerializer

java.lang.Object

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

org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton<Object>

org.apache.flink.table.dataview.NullSerializer

所有已实现的接口:

Serializable

@Internal
public class NullSerializer
extends org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton<Object>

A serializer for null.

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	NullSerializer.NullSerializerSnapshot Serializer configuration snapshot for compatibility and format evolution.

字段概要

字段

限定符和类型	字段和说明
static NullSerializer	INSTANCE

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)
Object	copy(Object from)
Object	copy(Object from, Object reuse)
Object	createInstance()
Object	deserialize(org.apache.flink.core.memory.DataInputView source)
Object	deserialize(Object reuse, org.apache.flink.core.memory.DataInputView source)
int	getLength()
boolean	isImmutableType()
void	serialize(Object record, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<Object>	snapshotConfiguration()

从类继承的方法 org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton

duplicate, equals, hashCode

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

INSTANCE

public static final NullSerializer INSTANCE

方法详细资料

isImmutableType

public boolean isImmutableType()

指定者:

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

createInstance

public Object createInstance()

指定者:

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

copy

public Object copy(Object from)

指定者:

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

copy

public Object copy(Object from,
                   Object reuse)

指定者:

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

getLength

public int getLength()

指定者:

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

serialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

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<Object>

抛出:

IOException

snapshotConfiguration

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

指定者:

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