cz.o2.proxima.direct.time

Class MinimalPartitionWatermarkEstimator

java.lang.Object

cz.o2.proxima.direct.time.MinimalPartitionWatermarkEstimator

All Implemented Interfaces:

TimeProvider, PartitionedWatermarkEstimator, WatermarkSupplier, java.io.Serializable

public class MinimalPartitionWatermarkEstimator
extends java.lang.Object
implements PartitionedWatermarkEstimator

Watermark estimator wrapper for partitioned sources. Estimates watermark as a minimum across all partition's watermarks. Update and idle calls are delegated to estimator of a particular partition.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.concurrent.ConcurrentHashMap<java.lang.Integer,WatermarkEstimator>	estimators
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
MinimalPartitionWatermarkEstimator(java.util.Map<java.lang.Integer,WatermarkEstimator> partitionEstimators)

Method Summary

Modifier and Type	Method and Description
long	getWatermark()
long	getWatermark(int partition)
void	idle(int partition)
void	update(int partition, StreamElement element)

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

estimators

private final java.util.concurrent.ConcurrentHashMap<java.lang.Integer,WatermarkEstimator> estimators

Constructor Detail

MinimalPartitionWatermarkEstimator

public MinimalPartitionWatermarkEstimator(java.util.Map<java.lang.Integer,WatermarkEstimator> partitionEstimators)

Method Detail

getWatermark

public long getWatermark()

Specified by:

getWatermark in interface PartitionedWatermarkEstimator

Specified by:

getWatermark in interface WatermarkSupplier

getWatermark

public long getWatermark(int partition)

update

public void update(int partition,
                   StreamElement element)

Specified by:

update in interface PartitionedWatermarkEstimator

idle

public void idle(int partition)

Specified by:

idle in interface PartitionedWatermarkEstimator