ConsumerStrategy

:: Experimental :: Choice of how to create and configure underlying Kafka Consumers on driver and executors. See ConsumerStrategies to obtain instances. Kafka 0.10 consumers can require additional, sometimes complex, setup after object instantiation. This interface encapsulates that process, and allows it to be checkpointed.

K: type of Kafka message key
V: type of Kafka message value

Annotations: @Experimental()

Linear Supertypes

AnyRef, Any

Instance Constructors

new ConsumerStrategy()

Abstract Value Members

abstract def executorKafkaParams: Map[String, AnyRef]

Kafka configuration parameters to be used on executors.
Kafka configuration parameters to be used on executors. Requires "bootstrap.servers" to be set with Kafka broker(s) specified in host1:port1,host2:port2 form.
abstract def onStart(currentOffsets: Map[TopicPartition, Long]): Consumer[K, V]

Must return a fully configured Kafka Consumer, including subscribed or assigned topics.
Must return a fully configured Kafka Consumer, including subscribed or assigned topics. See Kafka docs. This consumer will be used on the driver to query for offsets only, not messages. The consumer must be returned in a state that it is safe to call poll(0) on.
currentOffsets
A map from TopicPartition to offset, indicating how far the driver has successfully read. Will be empty on initial start, possibly non-empty on restart from checkpoint.

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
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final def ##(): Int

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final def ==(arg0: Any): Boolean

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final def asInstanceOf[T0]: T0

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def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
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Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
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def equals(arg0: Any): Boolean

Definition Classes
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def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
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Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

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def hashCode(): Int

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final def isInstanceOf[T0]: Boolean

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final def ne(arg0: AnyRef): Boolean

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final def notify(): Unit

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final def notifyAll(): Unit

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final def synchronized[T0](arg0: ⇒ T0): T0

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def toString(): String

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final def wait(): Unit

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Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
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@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
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@throws( ... )

Related Doc: package kafka010

abstract class ConsumerStrategy[K, V] extends AnyRef

Instance Constructors

new ConsumerStrategy()

Abstract Value Members

abstract def executorKafkaParams: Map[String, AnyRef]

abstract def onStart(currentOffsets: Map[TopicPartition, Long]): Consumer[K, V]

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped