org.apache.flink.formats.avro

类 AvroRowDataDeserializationSchema

java.lang.Object

org.apache.flink.formats.avro.AvroRowDataDeserializationSchema

所有已实现的接口:

Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

@PublicEvolving
public class AvroRowDataDeserializationSchema
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Deserialization schema from Avro bytes to RowData.

Deserializes the byte[] messages into (nested) Flink RowData. It converts Avro types into types that are compatible with Flink's Table & SQL API.

Projects with Avro records containing logical date/time types need to add a JodaTime dependency.

Note: Changes in this class need to be kept in sync with the corresponding runtime class AvroRowDataSerializationSchema and schema converter AvroSchemaConverter.

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.DeserializationSchema

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

构造器概要

构造器

构造器和说明
AvroRowDataDeserializationSchema(org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.avro.generic.GenericRecord> nestedSchema, AvroToRowDataConverters.AvroToRowDataConverter runtimeConverter, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> typeInfo) Creates a Avro deserialization schema for the given logical type.
AvroRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> typeInfo) Creates a Avro deserialization schema for the given logical type.

方法概要

限定符和类型	方法和说明
org.apache.flink.table.data.RowData	deserialize(byte[] message)
boolean	equals(Object o)
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData>	getProducedType()
int	hashCode()
boolean	isEndOfStream(org.apache.flink.table.data.RowData nextElement)
void	open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

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.DeserializationSchema

deserialize

构造器详细资料

AvroRowDataDeserializationSchema

public AvroRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType,
                                        org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> typeInfo)

Creates a Avro deserialization schema for the given logical type.

参数:

rowType - The logical type used to deserialize the data.

typeInfo - The TypeInformation to be used by getProducedType().

AvroRowDataDeserializationSchema

public AvroRowDataDeserializationSchema(org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.avro.generic.GenericRecord> nestedSchema,
                                        AvroToRowDataConverters.AvroToRowDataConverter runtimeConverter,
                                        org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> typeInfo)

Creates a Avro deserialization schema for the given logical type.

参数:

nestedSchema - Deserialization schema to deserialize as GenericRecord

runtimeConverter - Converter that transforms a GenericRecord into RowData

typeInfo - The TypeInformation to be used by getProducedType()

方法详细资料

open

public void open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)
          throws Exception

指定者:

open 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

抛出:

Exception

deserialize

public org.apache.flink.table.data.RowData deserialize(@Nullable
                                                       byte[] message)
                                                throws IOException

指定者:

deserialize 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

抛出:

IOException

isEndOfStream

public boolean isEndOfStream(org.apache.flink.table.data.RowData nextElement)

指定者:

isEndOfStream 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

getProducedType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> getProducedType()

指定者:

getProducedType 在接口中 org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object