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c

pl.touk.nussknacker.engine.kafka.source

KafkaContextInitializer

class KafkaContextInitializer[K, V] extends BasicContextInitializer[ConsumerRecord[K, V]]

KafkaContextInitializer initializes Context variables with data provided in raw kafka event (see org.apache.kafka.clients.consumer.ConsumerRecord). It is used when flink source function produces stream of ConsumerRecord (deserialized to proper key-value data types). Produces pl.touk.nussknacker.engine.api.Context with two variables: - default "input" variable which is set up with ConsumerRecord.value - metadata of kafka event, see InputMeta

K

- type of key of deserialized ConsumerRecord

V

- type of value of deserialized ConsumerRecord

Linear Supertypes
BasicContextInitializer[ConsumerRecord[K, V]], ContextInitializer[ConsumerRecord[K, V]], Serializable, Serializable, AnyRef, Any
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Inherited
  1. KafkaContextInitializer
  2. BasicContextInitializer
  3. ContextInitializer
  4. Serializable
  5. Serializable
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new KafkaContextInitializer(outputVariableName: String, keyTypingResult: TypingResult, valueTypingResult: TypingResult)

    keyTypingResult

    - provides information on key type to specify metadata variable

    valueTypingResult

    - provides information on value type to specify main "#input" variable

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  9. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  10. def initContext(contextIdGenerator: ContextIdGenerator): ContextInitializingFunction[ConsumerRecord[K, V]]
    Definition Classes
    KafkaContextInitializer → BasicContextInitializer → ContextInitializer
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  15. val outputVariableName: String
    Attributes
    protected
    Definition Classes
    BasicContextInitializer
  16. val outputVariableType: TypingResult
    Attributes
    protected
    Definition Classes
    BasicContextInitializer
  17. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  18. def toString(): String
    Definition Classes
    AnyRef → Any
  19. def validationContext(context: ValidationContext)(implicit nodeId: NodeId): ValidatedNel[ProcessCompilationError, ValidationContext]
    Definition Classes
    KafkaContextInitializer → BasicContextInitializer → ContextInitializer
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated @deprecated
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from BasicContextInitializer[ConsumerRecord[K, V]]

Inherited from ContextInitializer[ConsumerRecord[K, V]]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped