in src/main/java/com/amazonaws/services/dynamodbv2/streams/connectors/DynamoDBBuffer.java [95:105]
public void consumeRecord(final Record record, final int recordBytes, final String sequenceNumber) {
// Use HashMap to deduplicate using the DynamoDB key as the key.
getBuffer().put(record.getDynamodb().getKeys(), record);
// Sequence number bound maintenance
setLastSequenceNumber(sequenceNumber);
if (getFirstSequenceNumber() == null) {
setFirstSequenceNumber(getLastSequenceNumber());
}
setProcessedRecords(getProcessedRecords() + 1);
emitCloudWatchMetrics();
}