flink-scala-api
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flink-scala-api/org.apache.flink.api.function

org.apache.flink.api.function

package org.apache.flink.api.function

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@Public
trait AllWindowFunction[IN, OUT, W <: Window] extends Function with Serializable

Base interface for functions that are evaluated over non-grouped windows, i.e., windows over all stream partitions.

Base interface for functions that are evaluated over non-grouped windows, i.e., windows over all stream partitions.

Attributes

IN

The type of the input value.

OUT

The type of the output value.

Graph
Supertypes
trait Function
trait Serializable
class Object
trait Matchable
class Any
Known subtypes
class RichAllWindowFunction[IN, OUT, W]
@PublicEvolving
abstract class ProcessAllWindowFunction[IN, OUT, W <: Window] extends AbstractRichFunction

Base abstract class for functions that are evaluated over keyed (grouped) windows using a context for retrieving extra information.

Base abstract class for functions that are evaluated over keyed (grouped) windows using a context for retrieving extra information.

Attributes

IN

The type of the input value.

OUT

The type of the output value.

W

The type of the window.

Graph
Supertypes
class AbstractRichFunction
trait RichFunction
trait Function
trait Serializable
class Object
trait Matchable
class Any
@PublicEvolving
abstract class ProcessWindowFunction[IN, OUT, KEY, W <: Window] extends AbstractRichFunction

Base abstract class for functions that are evaluated over keyed (grouped) windows using a context for retrieving extra information.

Base abstract class for functions that are evaluated over keyed (grouped) windows using a context for retrieving extra information.

Attributes

IN

The type of the input value.

KEY

The type of the key.

OUT

The type of the output value.

W

The type of the window.

Graph
Supertypes
class AbstractRichFunction
trait RichFunction
trait Function
trait Serializable
class Object
trait Matchable
class Any
abstract class RichAllWindowFunction[IN, OUT, W <: Window] extends AbstractRichFunction with AllWindowFunction[IN, OUT, W]

Rich variant of the org.apache.flink.api.function.AllWindowFunction.

Rich variant of the org.apache.flink.api.function.AllWindowFunction.

As a org.apache.flink.api.common.functions.RichFunction, it gives access to the org.apache.flink.api.common.functions.RuntimeContext and provides setup and tear-down methods.

Attributes

IN

The type of the input value.

OUT

The type of the output value.

W

The type of Window that this window function can be applied on.

Graph
Supertypes
trait AllWindowFunction[IN, OUT, W]
class AbstractRichFunction
trait RichFunction
trait Function
trait Serializable
class Object
trait Matchable
class Any
abstract class RichWindowFunction[IN, OUT, KEY, W <: Window] extends AbstractRichFunction with WindowFunction[IN, OUT, KEY, W]

Rich variant of the org.apache.flink.api.function.WindowFunction.

Rich variant of the org.apache.flink.api.function.WindowFunction.

As a org.apache.flink.api.common.functions.RichFunction, it gives access to the org.apache.flink.api.common.functions.RuntimeContext and provides setup and tear-down methods.

Attributes

IN

The type of the input value.

KEY

The type of the key.

OUT

The type of the output value.

W

The type of Window that this window function can be applied on.

Graph
Supertypes
trait WindowFunction[IN, OUT, KEY, W]
class AbstractRichFunction
trait RichFunction
trait Function
trait Serializable
class Object
trait Matchable
class Any
@Public
trait StatefulFunction[I, O, S] extends RichFunction

Trait implementing the functionality necessary to apply stateful functions in RichFunctions without exposing the OperatorStates to the user. The user should call the applyWithState method in his own RichFunction implementation.

Trait implementing the functionality necessary to apply stateful functions in RichFunctions without exposing the OperatorStates to the user. The user should call the applyWithState method in his own RichFunction implementation.

Attributes

Graph
Supertypes
trait RichFunction
trait Function
trait Serializable
class Object
trait Matchable
class Any
@Public
trait WindowFunction[IN, OUT, KEY, W <: Window] extends Function with Serializable

Base interface for functions that are evaluated over keyed (grouped) windows.

Base interface for functions that are evaluated over keyed (grouped) windows.

Attributes

IN

The type of the input value.

KEY

The type of the key.

OUT

The type of the output value.

Graph
Supertypes
trait Function
trait Serializable
class Object
trait Matchable
class Any
Known subtypes
class RichWindowFunction[IN, OUT, KEY, W]
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