Package io.confluent.parallelconsumer

Enum ParallelConsumerOptions.CommitMode

java.lang.Object

java.lang.Enum<ParallelConsumerOptions.CommitMode>

io.confluent.parallelconsumer.ParallelConsumerOptions.CommitMode

All Implemented Interfaces:

Serializable, Comparable<ParallelConsumerOptions.CommitMode>, Constable

Enclosing class:

ParallelConsumerOptions<K,V>

public static enum ParallelConsumerOptions.CommitMode
extends Enum<ParallelConsumerOptions.CommitMode>

The type of commit to be made, with either a transactions configured Producer where messages produced are committed back to the Broker along with the offsets they originated from, or with the faster simpler Consumer offset system either synchronously or asynchronously

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
PERIODIC_CONSUMER_ASYNCHRONOUS	Periodically commits offsets asynchronously.
PERIODIC_CONSUMER_SYNC	Periodically synchronous commits with the Consumer.
PERIODIC_TRANSACTIONAL_PRODUCER	Periodically commits through the Producer using transactions.

Method Summary

Modifier and Type	Method	Description
static ParallelConsumerOptions.CommitMode	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ParallelConsumerOptions.CommitMode[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

PERIODIC_TRANSACTIONAL_PRODUCER

public static final ParallelConsumerOptions.CommitMode PERIODIC_TRANSACTIONAL_PRODUCER

Periodically commits through the Producer using transactions. Slowest of the options, but no duplicates in Kafka guaranteed (message replay may cause duplicates in external systems which is unavoidable with Kafka).

This is separate from using an IDEMPOTENT Producer, which can be used, along with PERIODIC_CONSUMER_SYNC or PERIODIC_CONSUMER_ASYNCHRONOUS.

PERIODIC_CONSUMER_SYNC

public static final ParallelConsumerOptions.CommitMode PERIODIC_CONSUMER_SYNC

Periodically synchronous commits with the Consumer. Much faster than PERIODIC_TRANSACTIONAL_PRODUCER. Slower but potentially less duplicates than PERIODIC_CONSUMER_ASYNCHRONOUS upon replay.

PERIODIC_CONSUMER_ASYNCHRONOUS

public static final ParallelConsumerOptions.CommitMode PERIODIC_CONSUMER_ASYNCHRONOUS

Periodically commits offsets asynchronously. The fastest option, under normal conditions will have few or no duplicates. Under failure recovery may have more duplicates than PERIODIC_CONSUMER_SYNC.

Method Details

values

public static ParallelConsumerOptions.CommitMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ParallelConsumerOptions.CommitMode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null