org.apache.flink.formats.avro

Class AvroDeserializationSchema<T>

java.lang.Object

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

Type Parameters:

T - type of record it produces

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<T>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>

Direct Known Subclasses:

RegistryAvroDeserializationSchema

public class AvroDeserializationSchema<T>
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<T>

Deserialization schema that deserializes from Avro binary format.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
T	deserialize(byte[] message)
static AvroDeserializationSchema<org.apache.avro.generic.GenericRecord>	forGeneric(org.apache.avro.Schema schema) Creates AvroDeserializationSchema that produces GenericRecord using provided schema.
static <T extends org.apache.avro.specific.SpecificRecord> AvroDeserializationSchema<T>	forSpecific(Class<T> tClass) Creates AvroDeserializationSchema that produces classes that were generated from avro schema.
org.apache.flink.api.common.typeinfo.TypeInformation<T>	getProducedType()
boolean	isEndOfStream(T nextElement)

Methods inherited from class java.lang.Object

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

Method Detail

forGeneric

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

Creates AvroDeserializationSchema that produces GenericRecord using provided schema.

Parameters:

schema - schema of produced records

Returns:

deserialized record in form of GenericRecord

forSpecific

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

Creates AvroDeserializationSchema that produces classes that were generated from avro schema.

Parameters:

tClass - class of record to be produced

Returns:

deserialized record

deserialize

public T deserialize(byte[] message)
              throws IOException

Specified by:

deserialize in interface org.apache.flink.api.common.serialization.DeserializationSchema<T>

Throws:

IOException

isEndOfStream

public boolean isEndOfStream(T nextElement)

Specified by:

isEndOfStream in interface org.apache.flink.api.common.serialization.DeserializationSchema<T>

getProducedType

public org.apache.flink.api.common.typeinfo.TypeInformation<T> getProducedType()

Specified by:

getProducedType in interface org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>