vertx / io.vertx.kafka.client.consumer / KafkaReadStream / seekToBeginning

seekToBeginning

abstract fun seekToBeginning(topicPartitions: MutableSet<TopicPartition>): KafkaReadStream<K, V>

Seek to the first offset for each of the given partitions.

Parameters

topicPartitions - topic partition for which seek

Return
current KafkaReadStream instance

abstract fun seekToBeginning(topicPartitions: MutableSet<TopicPartition>, completionHandler: Handler<AsyncResult<Void>>): KafkaReadStream<K, V>

Seek to the first offset for each of the given partitions.

Due to internal buffering of messages, the record handler will continue to observe messages fetched with respect to the old offset until some time after the given completionHandler is called. In contrast, the once the given completionHandler is called the #batchHandler(Handler) will only see messages consistent with the new offset.

Parameters

topicPartitions - topic partition for which seek

completionHandler - handler called on operation completed

Return
current KafkaReadStream instance