public class KafkaTridentTransactionalSpoutEmitter<K,V> extends Object implements IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>, Serializable
| Constructor and Description |
|---|
KafkaTridentTransactionalSpoutEmitter(KafkaTridentSpoutEmitter<K,V> emitter) |
| Modifier and Type | Method and Description |
|---|---|
void |
close() |
void |
emitPartitionBatch(TransactionAttempt tx,
TridentCollector collector,
KafkaTridentSpoutTopicPartition partition,
Map<String,Object> partitionMeta)
Emit a batch of tuples for a partition/transaction that has been emitted before, using the metadata created when it was first emitted.
|
Map<String,Object> |
emitPartitionBatchNew(TransactionAttempt tx,
TridentCollector collector,
KafkaTridentSpoutTopicPartition partition,
Map<String,Object> lastPartitionMeta)
Emit a batch of tuples for a partition/transaction that’s never been emitted before.
|
List<KafkaTridentSpoutTopicPartition> |
getOrderedPartitions(List<Map<String,Object>> allPartitionInfo)
Sorts given partition info to produce an ordered list of partitions.
|
void |
refreshPartitions(List<KafkaTridentSpoutTopicPartition> partitionResponsibilities)
This method is called when this task is responsible for a new set of partitions.
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetPartitionsForTaskpublic KafkaTridentTransactionalSpoutEmitter(KafkaTridentSpoutEmitter<K,V> emitter)
public List<KafkaTridentSpoutTopicPartition> getOrderedPartitions(List<Map<String,Object>> allPartitionInfo)
IPartitionedTridentSpout.EmitterSorts given partition info to produce an ordered list of partitions.
getOrderedPartitions in interface IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>allPartitionInfo - The partition info for all partitions being processed by all spout taskspublic Map<String,Object> emitPartitionBatchNew(TransactionAttempt tx, TridentCollector collector, KafkaTridentSpoutTopicPartition partition, Map<String,Object> lastPartitionMeta)
IPartitionedTridentSpout.EmitterEmit a batch of tuples for a partition/transaction that’s never been emitted before. Return the metadata that can be used to reconstruct this partition/batch in the future.
emitPartitionBatchNew in interface IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>public void refreshPartitions(List<KafkaTridentSpoutTopicPartition> partitionResponsibilities)
IPartitionedTridentSpout.EmitterThis method is called when this task is responsible for a new set of partitions. Should be used to manage things like connections to brokers.
refreshPartitions in interface IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>public void emitPartitionBatch(TransactionAttempt tx, TridentCollector collector, KafkaTridentSpoutTopicPartition partition, Map<String,Object> partitionMeta)
IPartitionedTridentSpout.EmitterEmit a batch of tuples for a partition/transaction that has been emitted before, using the metadata created when it was first emitted.
emitPartitionBatch in interface IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>public void close()
close in interface IPartitionedTridentSpout.Emitter<List<Map<String,Object>>,KafkaTridentSpoutTopicPartition,Map<String,Object>>Copyright © 2021 The Apache Software Foundation. All rights reserved.