org.apache.flink.streaming.connectors.kinesis.serialization

Class DynamoDBStreamsSchema

java.lang.Object

org.apache.flink.streaming.connectors.kinesis.serialization.DynamoDBStreamsSchema

All Implemented Interfaces:

Serializable, ResultTypeQueryable<com.amazonaws.services.dynamodbv2.model.Record>, KinesisDeserializationSchema<com.amazonaws.services.dynamodbv2.model.Record>

public class DynamoDBStreamsSchema
extends Object
implements KinesisDeserializationSchema<com.amazonaws.services.dynamodbv2.model.Record>

Schema used for deserializing DynamoDB streams records.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DynamoDBStreamsSchema()

Method Summary

Modifier and Type	Method and Description
com.amazonaws.services.dynamodbv2.model.Record	deserialize(byte[] message, String partitionKey, String seqNum, long approxArrivalTimestamp, String stream, String shardId) Deserializes a Kinesis record's bytes.
TypeInformation<com.amazonaws.services.dynamodbv2.model.Record>	getProducedType() Gets the data type (as a TypeInformation) produced by this function or input format.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.connectors.kinesis.serialization.KinesisDeserializationSchema

open

Constructor Detail

DynamoDBStreamsSchema

public DynamoDBStreamsSchema()

Method Detail

deserialize

public com.amazonaws.services.dynamodbv2.model.Record deserialize(byte[] message,
                                                                  String partitionKey,
                                                                  String seqNum,
                                                                  long approxArrivalTimestamp,
                                                                  String stream,
                                                                  String shardId)
                                                           throws IOException

Description copied from interface: KinesisDeserializationSchema

Deserializes a Kinesis record's bytes. If the record cannot be deserialized, null may be returned. This informs the Flink Kinesis Consumer to process the Kinesis record without producing any output for it, i.e. effectively "skipping" the record.

Specified by:

deserialize in interface KinesisDeserializationSchema<com.amazonaws.services.dynamodbv2.model.Record>

Parameters:

message - the record's value as a byte array

partitionKey - the record's partition key at the time of writing

seqNum - the sequence number of this record in the Kinesis shard

approxArrivalTimestamp - the server-side timestamp of when Kinesis received and stored the record

stream - the name of the Kinesis stream that this record was sent to

shardId - The identifier of the shard the record was sent to

Returns:

the deserialized message as an Java object (null if the message cannot be deserialized).

Throws:

IOException

getProducedType

public TypeInformation<com.amazonaws.services.dynamodbv2.model.Record> getProducedType()

Description copied from interface: ResultTypeQueryable

Gets the data type (as a TypeInformation) produced by this function or input format.

Specified by:

getProducedType in interface ResultTypeQueryable<com.amazonaws.services.dynamodbv2.model.Record>

Returns:

The data type produced by this function or input format.