class UnionTransformer extends CustomStreamTransformer with LazyLogging

It creates union of joined data streams. Produced variable will be of type of value expression

Linear Supertypes
LazyLogging, CustomStreamTransformer, Component, AnyRef, Any
Known Subclasses
UnionTransformer
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Inherited
  1. UnionTransformer
  2. LazyLogging
  3. CustomStreamTransformer
  4. Component
  5. AnyRef
  6. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new UnionTransformer(timestampAssigner: Option[TimestampWatermarkHandler[TimestampedValue[ValueWithContext[AnyRef]]]])

    timestampAssigner

    Optional timestamp assigner that will be used on connected stream. Make notice that Flink produces min watermark(left stream watermark, right stream watermark) for connected streams. In some cases, when you have some time-based aggregation after union, you would like to redefine this logic.

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 canBeEnding: Boolean
    Definition Classes
    CustomStreamTransformer
  6. def canHaveManyInputs: Boolean
    Definition Classes
    UnionTransformer → CustomStreamTransformer
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  10. def execute(outputExpressionByBranchId: Map[String, LazyParameter[AnyRef]], variableName: String)(implicit nodeId: NodeId): JoinContextTransformation
    Annotations
    @MethodToInvoke()
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. lazy val logger: Logger
    Attributes
    protected
    Definition Classes
    LazyLogging
    Annotations
    @transient()
  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  17. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  18. val outputExpressionParameterName: String
  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  20. def toString(): String
    Definition Classes
    AnyRef → Any
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  23. 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 LazyLogging

Inherited from CustomStreamTransformer

Inherited from Component

Inherited from AnyRef

Inherited from Any

Ungrouped