org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction

Class ThroughputEstimator

java.lang.Object

org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction.ThroughputEstimator

All Implemented Interfaces:

java.io.Serializable

public class ThroughputEstimator
extends java.lang.Object
implements java.io.Serializable

An estimator to provide an estimate on the throughput of the outputted elements.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ThroughputEstimator()

Method Summary

Modifier and Type	Method and Description
double	get() Returns the estimated throughput for now.
double	getFrom(com.google.cloud.Timestamp time) Returns the estimated throughput for a specified time.
void	update(com.google.cloud.Timestamp timeOfRecords, long bytes) Updates the estimator with the bytes of records.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThroughputEstimator

public ThroughputEstimator()

Method Detail

update

public void update(com.google.cloud.Timestamp timeOfRecords,
                   long bytes)

Updates the estimator with the bytes of records.

Parameters:

timeOfRecords - the committed timestamp of the records

bytes - the total bytes of the records

get

public double get()

Returns the estimated throughput for now.

getFrom

public double getFrom(com.google.cloud.Timestamp time)

Returns the estimated throughput for a specified time.

Parameters:

time - the specified timestamp to check throughput