org.apache.flink.formats.avro.typeutils

类 AvroSerializer<T>

java.lang.Object

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

org.apache.flink.formats.avro.typeutils.AvroSerializer<T>

类型参数:

T - The type to be serialized.

所有已实现的接口:

Serializable

public class AvroSerializer<T>
extends org.apache.flink.api.common.typeutils.TypeSerializer<T>

A serializer that serializes types via Avro.

The serializer supports:

• efficient specific record serialization for types generated via Avro
• serialization via reflection (ReflectDatumReader / -Writer)
• serialization of generic records via GenericDatumReader / -Writer

The serializer instantiates them depending on the class of the type it should serialize.

Important: This serializer is NOT THREAD SAFE, because it reuses the data encoders and decoders which have buffers that would be shared between the threads if used concurrently

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	AvroSerializer.AvroSchemaSerializerConfigSnapshot<T> 已过时。

构造器概要

构造器

构造器和说明
AvroSerializer(Class<T> type) Creates a new AvroSerializer for the type indicated by the given class.
AvroSerializer(Class<T> type, Class<? extends T> typeToInstantiate) 已过时。 Use AvroSerializer(Class) instead.
AvroSerializer(Class<T> type, org.apache.avro.Schema schema) Creates a new AvroSerializer for the type indicated by the given class.

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)
T	copy(T from)
T	copy(T from, T reuse)
T	createInstance()
T	deserialize(org.apache.flink.core.memory.DataInputView source)
T	deserialize(T reuse, org.apache.flink.core.memory.DataInputView source)
org.apache.flink.api.common.typeutils.TypeSerializer<T>	duplicate()
boolean	equals(Object obj)
int	getLength()
Class<T>	getType()
int	hashCode()
boolean	isImmutableType()
void	serialize(T value, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<T>	snapshotConfiguration()
String	toString()

从类继承的方法 java.lang.Object

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

构造器详细资料

AvroSerializer

public AvroSerializer(Class<T> type)

Creates a new AvroSerializer for the type indicated by the given class. This constructor is intended to be used with SpecificRecord or reflection serializer. For serializing GenericData.Record use AvroSerializer(Class, Schema)

AvroSerializer

public AvroSerializer(Class<T> type,
                      org.apache.avro.Schema schema)

Creates a new AvroSerializer for the type indicated by the given class. This constructor is expected to be used only with GenericData.Record. For SpecificRecord or reflection serializer use AvroSerializer(Class)

AvroSerializer

@Deprecated
public AvroSerializer(Class<T> type,
                                  Class<? extends T> typeToInstantiate)

已过时。 Use AvroSerializer(Class) instead.

方法详细资料

getType

@Nonnull
public Class<T> getType()

isImmutableType

public boolean isImmutableType()

指定者:

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

getLength

public int getLength()

指定者:

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

createInstance

public T createInstance()

指定者:

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

serialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

deserialize

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

指定者:

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

抛出:

IOException

copy

public T copy(T from)

指定者:

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

copy

public T copy(T from,
              T reuse)

指定者:

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

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<T>

抛出:

IOException

snapshotConfiguration

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

指定者:

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

duplicate

public org.apache.flink.api.common.typeutils.TypeSerializer<T> duplicate()

指定者:

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

hashCode

public int hashCode()

指定者:

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

equals

public boolean equals(Object obj)

指定者:

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

toString

public String toString()

覆盖:

toString 在类中 Object