org.apache.flink.streaming.api.windowing.helper

Class WindowingHelper<DATA>

java.lang.Object

org.apache.flink.streaming.api.windowing.helper.WindowingHelper<DATA>

Type Parameters:

DATA - the type of input data handled by this helper

Direct Known Subclasses:

Count, Delta, FullStream, Time

public abstract class WindowingHelper<DATA>
extends Object

A helper representing a count or eviction policy. Such helper classes are used to provide a nice and well readable API.

See Also:

Count, Time, Delta

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.flink.api.common.ExecutionConfig	executionConfig Provides information for initial value serialization in Delta, unused in other subclasses.

Constructor Summary

Constructors

Constructor and Description
WindowingHelper()

Method Summary

Modifier and Type	Method and Description
void	setExecutionConfig(org.apache.flink.api.common.ExecutionConfig executionConfig) Setter for the ExecutionConfig field.
abstract EvictionPolicy<DATA>	toEvict() Method for encapsulating the EvictionPolicy.
abstract TriggerPolicy<DATA>	toTrigger() Method for encapsulating the TriggerPolicy.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

executionConfig

protected org.apache.flink.api.common.ExecutionConfig executionConfig

Provides information for initial value serialization in Delta, unused in other subclasses.

Constructor Detail

WindowingHelper

public WindowingHelper()

Method Detail

toEvict

public abstract EvictionPolicy<DATA> toEvict()

Method for encapsulating the EvictionPolicy.

Returns:

the eviction policy

toTrigger

public abstract TriggerPolicy<DATA> toTrigger()

Method for encapsulating the TriggerPolicy.

Returns:

the trigger policy

setExecutionConfig

public final void setExecutionConfig(org.apache.flink.api.common.ExecutionConfig executionConfig)

Setter for the ExecutionConfig field.

Parameters:

executionConfig - Desired value