org.apache.flink.formats.avro

类 AvroSerializationSchema<T>

java.lang.Object

org.apache.flink.formats.avro.AvroSerializationSchema<T>

类型参数:

T - the type to be serialized

所有已实现的接口:

Serializable, org.apache.flink.api.common.serialization.SerializationSchema<T>

直接已知子类:

RegistryAvroSerializationSchema

public class AvroSerializationSchema<T>
extends Object
implements org.apache.flink.api.common.serialization.SerializationSchema<T>

Serialization schema that serializes to Avro binary format.

另请参阅:

序列化表格

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.api.common.serialization.SerializationSchema

org.apache.flink.api.common.serialization.SerializationSchema.InitializationContext

构造器概要

构造器

限定符	构造器和说明
protected	AvroSerializationSchema(Class<T> recordClazz, org.apache.avro.Schema schema) Creates an Avro deserialization schema.

方法概要

限定符和类型	方法和说明
protected void	checkAvroInitialized()
boolean	equals(Object o)
static AvroSerializationSchema<org.apache.avro.generic.GenericRecord>	forGeneric(org.apache.avro.Schema schema) Creates AvroSerializationSchema that serializes GenericRecord using provided schema.
static <T extends org.apache.avro.specific.SpecificRecord> AvroSerializationSchema<T>	forSpecific(Class<T> tClass) Creates AvroSerializationSchema that serializes SpecificRecord using provided schema.
protected org.apache.avro.generic.GenericDatumWriter<T>	getDatumWriter()
protected org.apache.avro.io.BinaryEncoder	getEncoder()
protected ByteArrayOutputStream	getOutputStream()
org.apache.avro.Schema	getSchema()
int	hashCode()
byte[]	serialize(T object)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.api.common.serialization.SerializationSchema

open

构造器详细资料

AvroSerializationSchema

protected AvroSerializationSchema(Class<T> recordClazz,
                                  @Nullable
                                  org.apache.avro.Schema schema)

Creates an Avro deserialization schema.

参数:

recordClazz - class to serialize. Should be one of: SpecificRecord, GenericRecord.

schema - writer Avro schema. Should be provided if recordClazz is GenericRecord

方法详细资料

forSpecific

public static <T extends org.apache.avro.specific.SpecificRecord> AvroSerializationSchema<T> forSpecific(Class<T> tClass)

Creates AvroSerializationSchema that serializes SpecificRecord using provided schema.

参数:

tClass - the type to be serialized

返回:

serialized record in form of byte array

forGeneric

public static AvroSerializationSchema<org.apache.avro.generic.GenericRecord> forGeneric(org.apache.avro.Schema schema)

Creates AvroSerializationSchema that serializes GenericRecord using provided schema.

参数:

schema - the schema that will be used for serialization

返回:

serialized record in form of byte array

getSchema

public org.apache.avro.Schema getSchema()

getEncoder

protected org.apache.avro.io.BinaryEncoder getEncoder()

getDatumWriter

protected org.apache.avro.generic.GenericDatumWriter<T> getDatumWriter()

getOutputStream

protected ByteArrayOutputStream getOutputStream()

serialize

public byte[] serialize(T object)

指定者:

serialize 在接口中 org.apache.flink.api.common.serialization.SerializationSchema<T>

checkAvroInitialized

protected void checkAvroInitialized()

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object