org.apache.flink.table.dataview

Class 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

All Implemented Interfaces:

Serializable

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

A serializer for null.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NullSerializer()

Method Summary

Modifier and Type	Method and Description
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()

Methods inherited from class org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton

duplicate, equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

NullSerializer

public NullSerializer()

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

isImmutableType in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

createInstance

public Object createInstance()

Specified by:

createInstance in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

copy

public Object copy(Object from)

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

copy

public Object copy(Object from,
                   Object reuse)

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

getLength

public int getLength()

Specified by:

getLength in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

serialize

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

Specified by:

serialize in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

Throws:

IOException

deserialize

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

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

Throws:

IOException

deserialize

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

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

Throws:

IOException

copy

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

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>

Throws:

IOException

snapshotConfiguration

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

Specified by:

snapshotConfiguration in class org.apache.flink.api.common.typeutils.TypeSerializer<Object>