org.apache.flink.streaming.connectors.kafka.internals

类 KeyedSerializationSchemaWrapper<T>

java.lang.Object

org.apache.flink.streaming.connectors.kafka.internals.KeyedSerializationSchemaWrapper<T>

类型参数:

T - The type to serialize

所有已实现的接口:

Serializable, KeyedSerializationSchema<T>

@Internal
public class KeyedSerializationSchemaWrapper<T>
extends Object
implements KeyedSerializationSchema<T>

A simple wrapper for using the SerializationSchema with the KeyedSerializationSchema interface.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
KeyedSerializationSchemaWrapper(org.apache.flink.api.common.serialization.SerializationSchema<T> serializationSchema)

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.serialization.SerializationSchema<T>	getSerializationSchema()
String	getTargetTopic(T element) Optional method to determine the target topic for the element.
byte[]	serializeKey(T element) Serializes the key of the incoming element to a byte array This method might return null if no key is available.
byte[]	serializeValue(T element) Serializes the value of the incoming element to a byte array.

从类继承的方法 java.lang.Object

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

构造器详细资料

KeyedSerializationSchemaWrapper

public KeyedSerializationSchemaWrapper(org.apache.flink.api.common.serialization.SerializationSchema<T> serializationSchema)

方法详细资料

getSerializationSchema

public org.apache.flink.api.common.serialization.SerializationSchema<T> getSerializationSchema()

serializeKey

public byte[] serializeKey(T element)

从接口复制的说明: KeyedSerializationSchema

Serializes the key of the incoming element to a byte array This method might return null if no key is available.

指定者:

serializeKey 在接口中 KeyedSerializationSchema<T>

参数:

element - The incoming element to be serialized

返回:

the key of the element as a byte array

serializeValue

public byte[] serializeValue(T element)

从接口复制的说明: KeyedSerializationSchema

Serializes the value of the incoming element to a byte array.

指定者:

serializeValue 在接口中 KeyedSerializationSchema<T>

参数:

element - The incoming element to be serialized

返回:

the value of the element as a byte array

getTargetTopic

public String getTargetTopic(T element)

从接口复制的说明: KeyedSerializationSchema

Optional method to determine the target topic for the element.

指定者:

getTargetTopic 在接口中 KeyedSerializationSchema<T>

参数:

element - Incoming element to determine the target topic from

返回:

null or the target topic