org.apache.kafka.streams.state

Class DslWindowParams

java.lang.Object

org.apache.kafka.streams.state.DslWindowParams

public class DslWindowParams
extends Object

DslWindowParams is a wrapper class for all parameters that function as inputs to DslStoreSuppliers.windowStore(DslWindowParams).

Constructor Summary

Constructors

Constructor and Description
DslWindowParams(String name, Duration retentionPeriod, Duration windowSize, boolean retainDuplicates, EmitStrategy emitStrategy, boolean isSlidingWindow, boolean isTimestamped)

Method Summary

Modifier and Type	Method and Description
EmitStrategy	emitStrategy()
boolean	equals(Object o)
int	hashCode()
boolean	isSlidingWindow()
boolean	isTimestamped()
String	name()
boolean	retainDuplicates()
Duration	retentionPeriod()
String	toString()
Duration	windowSize()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DslWindowParams

public DslWindowParams(String name,
                       Duration retentionPeriod,
                       Duration windowSize,
                       boolean retainDuplicates,
                       EmitStrategy emitStrategy,
                       boolean isSlidingWindow,
                       boolean isTimestamped)

Parameters:

name - name of the store (cannot be null)

retentionPeriod - length of time to retain data in the store (cannot be negative) (note that the retention period must be at least long enough to contain the windowed data's entire life cycle, from window-start through window-end, and for the entire grace period)

windowSize - size of the windows (cannot be negative)

retainDuplicates - whether to retain duplicates. Turning this on will automatically disable caching and means that null values will be ignored.

emitStrategy - defines how to emit results

isSlidingWindow - whether the requested store is a sliding window

isTimestamped - whether the requested store should be timestamped (see TimestampedWindowStore

Method Detail

name

public String name()

retentionPeriod

public Duration retentionPeriod()

windowSize

public Duration windowSize()

retainDuplicates

public boolean retainDuplicates()

emitStrategy

public EmitStrategy emitStrategy()

isSlidingWindow

public boolean isSlidingWindow()

isTimestamped

public boolean isTimestamped()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object