UnionTransformer

It creates union of joined data streams. Produced variable will be a map which looks like: { key: result_of_evaluation_of_key_expression_for_branch1 branchId: result_of_evaluation_of_value_expression_for_branchId } branchId field of map will have Unknown type. If you want to specify it, you can pass type as a Map in definition parameter.

Linear Supertypes

LazyLogging, CustomStreamTransformer, Component, AnyRef, Any

Known Subclasses

UnionTransformer

Instance Constructors

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

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def canBeEnding: Boolean

Definition Classes
CustomStreamTransformer
def canHaveManyInputs: Boolean

Definition Classes
UnionTransformer → CustomStreamTransformer
def clearsContext: Boolean

Definition Classes
CustomStreamTransformer
def clone(): AnyRef

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

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def execute(keyByBranchId: Map[String, LazyParameter[CharSequence]], valueByBranchId: Map[String, LazyParameter[AnyRef]], variableName: String)(implicit nodeId: NodeId): JoinContextTransformation

Annotations
@MethodToInvoke()
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
Annotations
@HotSpotIntrinsicCandidate()
def hashCode(): Int

Definition Classes
AnyRef → Any
Annotations
@HotSpotIntrinsicCandidate()
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
lazy val logger: Logger

Attributes
protected
Definition Classes
LazyLogging
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
Annotations
@HotSpotIntrinsicCandidate()
final def notifyAll(): Unit

Definition Classes
AnyRef
Annotations
@HotSpotIntrinsicCandidate()
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(arg0: Long, arg1: Int): Unit

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

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Deprecated Value Members

def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
Deprecated
(Since version ) see corresponding Javadoc for more information.

Related Docs: object UnionTransformer | package transformer

class UnionTransformer extends CustomStreamTransformer with LazyLogging

Instance Constructors

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

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def canBeEnding: Boolean

def canHaveManyInputs: Boolean

def clearsContext: Boolean

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def execute(keyByBranchId: Map[String, LazyParameter[CharSequence]], valueByBranchId: Map[String, LazyParameter[AnyRef]], variableName: String)(implicit nodeId: NodeId): JoinContextTransformation

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

lazy val logger: Logger

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(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

final def wait(): Unit

Deprecated Value Members

def finalize(): Unit

Inherited from LazyLogging

Inherited from CustomStreamTransformer

Inherited from Component

Inherited from AnyRef

Inherited from Any

Ungrouped