cz.o2.proxima.direct.time

Class BoundedOutOfOrdernessWatermarkEstimator

java.lang.Object

cz.o2.proxima.time.AbstractWatermarkEstimator

cz.o2.proxima.direct.time.BoundedOutOfOrdernessWatermarkEstimator

All Implemented Interfaces:

TimeProvider, WatermarkEstimator, WatermarkSupplier, java.io.Serializable

public class BoundedOutOfOrdernessWatermarkEstimator
extends AbstractWatermarkEstimator

This estimators generates watermarks assuming that elements arrive out of order, but only to a certain degree defined by configuration: watermark.max-out-of-orderness.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BoundedOutOfOrdernessWatermarkEstimator.Builder Builder of the BoundedOutOfOrdernessWatermarkEstimator.
static class	BoundedOutOfOrdernessWatermarkEstimator.Factory Creates an instance of BoundedOutOfOrdernessWatermarkEstimator.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEFAULT_MAX_OUT_OF_ORDERNESS_MS
static java.lang.String	MAX_OUT_OF_ORDERNESS_MS
private long	maxOutOfOrderness
private java.lang.Long	maxTimestamp
private long	minWatermark
private static long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor and Description
private	BoundedOutOfOrdernessWatermarkEstimator(long maxOutOfOrderness, long minWatermark, WatermarkIdlePolicy idlePolicy)

Method Summary

Modifier and Type	Method and Description
protected long	estimateWatermark()
static BoundedOutOfOrdernessWatermarkEstimator.Builder	newBuilder()
void	setMinWatermark(long minWatermark)
void	updateWatermark(StreamElement element)

Methods inherited from class cz.o2.proxima.time.AbstractWatermarkEstimator

getWatermark, idle, update

Methods inherited from class java.lang.Object

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

Methods inherited from interface cz.o2.proxima.time.WatermarkSupplier

getCurrentTime

Methods inherited from interface cz.o2.proxima.functional.TimeProvider

processingTime

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

MAX_OUT_OF_ORDERNESS_MS

public static final java.lang.String MAX_OUT_OF_ORDERNESS_MS

See Also:

Constant Field Values

DEFAULT_MAX_OUT_OF_ORDERNESS_MS

public static final long DEFAULT_MAX_OUT_OF_ORDERNESS_MS

See Also:

Constant Field Values

maxOutOfOrderness

private final long maxOutOfOrderness

minWatermark

private long minWatermark

maxTimestamp

private java.lang.Long maxTimestamp

Constructor Detail

BoundedOutOfOrdernessWatermarkEstimator

private BoundedOutOfOrdernessWatermarkEstimator(long maxOutOfOrderness,
                                                long minWatermark,
                                                WatermarkIdlePolicy idlePolicy)

Method Detail

newBuilder

public static BoundedOutOfOrdernessWatermarkEstimator.Builder newBuilder()

estimateWatermark

protected long estimateWatermark()

Specified by:

estimateWatermark in class AbstractWatermarkEstimator

updateWatermark

public void updateWatermark(StreamElement element)

Specified by:

updateWatermark in class AbstractWatermarkEstimator

setMinWatermark

public void setMinWatermark(long minWatermark)