com.amazonaws.services.dynamodbv2.streamsadapter

Class DynamoDBStreamsDataFetcher

java.lang.Object

com.amazonaws.services.dynamodbv2.streamsadapter.DynamoDBStreamsDataFetcher

All Implemented Interfaces:

com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

public class DynamoDBStreamsDataFetcher
extends java.lang.Object
implements com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

Constructor Summary

Constructors

Constructor and Description
DynamoDBStreamsDataFetcher(com.amazonaws.services.kinesis.clientlibrary.proxies.IKinesisProxy kinesisProxy, com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo shardInfo)

Method Summary

Modifier and Type	Method and Description
void	advanceIteratorTo(java.lang.String sequenceNumber, com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream) Advances this KinesisDataFetcher's internal iterator to be at the passed-in sequence number.
java.util.List<com.amazonaws.services.kinesis.model.ChildShard>	getChildShards()
com.amazonaws.services.kinesis.clientlibrary.lib.worker.DataFetcherResult	getRecords(int maxRecords) Get records from the current position in the stream (up to maxRecords).
void	initialize(com.amazonaws.services.kinesis.clientlibrary.types.ExtendedSequenceNumber initialCheckpoint, com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream)
void	initialize(java.lang.String initialCheckpoint, com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream) Initializes this KinesisDataFetcher's iterator based on the checkpointed sequence number.
boolean	isShardEndReached()
void	restartIterator() Gets a new iterator from the last known sequence number i.e.

Methods inherited from class java.lang.Object

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

Constructor Detail

DynamoDBStreamsDataFetcher

public DynamoDBStreamsDataFetcher(com.amazonaws.services.kinesis.clientlibrary.proxies.IKinesisProxy kinesisProxy,
                                  com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo shardInfo)

Parameters:

kinesisProxy - Kinesis proxy

shardInfo - The shardInfo object.

Method Detail

getRecords

public com.amazonaws.services.kinesis.clientlibrary.lib.worker.DataFetcherResult getRecords(int maxRecords)

Get records from the current position in the stream (up to maxRecords).

Specified by:

getRecords in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

Parameters:

maxRecords - Max records to fetch

Returns:

list of records of up to maxRecords size

initialize

public void initialize(java.lang.String initialCheckpoint,
                       com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream)

Initializes this KinesisDataFetcher's iterator based on the checkpointed sequence number.

Specified by:

initialize in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

Parameters:

initialCheckpoint - Current checkpoint sequence number for this shard.

initialPositionInStream - The initialPositionInStream.

initialize

public void initialize(com.amazonaws.services.kinesis.clientlibrary.types.ExtendedSequenceNumber initialCheckpoint,
                       com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream)

Specified by:

initialize in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

advanceIteratorTo

public void advanceIteratorTo(java.lang.String sequenceNumber,
                              com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStreamExtended initialPositionInStream)

Advances this KinesisDataFetcher's internal iterator to be at the passed-in sequence number.

Specified by:

advanceIteratorTo in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

Parameters:

sequenceNumber - advance the iterator to the record at this sequence number.

initialPositionInStream - The initialPositionInStream.

restartIterator

public void restartIterator()

Gets a new iterator from the last known sequence number i.e. the sequence number of the last record from the last getRecords call.

Specified by:

restartIterator in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

isShardEndReached

public boolean isShardEndReached()

Specified by:

isShardEndReached in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher

Returns:

the shardEndReached

getChildShards

public java.util.List<com.amazonaws.services.kinesis.model.ChildShard> getChildShards()

Specified by:

getChildShards in interface com.amazonaws.services.kinesis.clientlibrary.lib.worker.IDataFetcher