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

Class NullThroughputEstimator<T>

java.lang.Object

org.apache.beam.sdk.io.gcp.spanner.changestreams.estimator.NullThroughputEstimator<T>

All Implemented Interfaces:

java.io.Serializable, ThroughputEstimator<T>

public class NullThroughputEstimator<T>
extends java.lang.Object
implements ThroughputEstimator<T>

NoOp implementation of a throughput estimator. This will always return 0 as the throughput and it will warn users that this is being used (it should not be used in production).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NullThroughputEstimator()

Method Summary

Modifier and Type	Method and Description
double	getFrom(com.google.cloud.Timestamp time) Always returns 0.
void	update(com.google.cloud.Timestamp timeOfRecords, T element) NoOp.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.beam.sdk.io.gcp.spanner.changestreams.estimator.ThroughputEstimator

get

Constructor Detail

NullThroughputEstimator

public NullThroughputEstimator()

Method Detail

update

public void update(com.google.cloud.Timestamp timeOfRecords,
                   T element)

NoOp.

Specified by:

update in interface ThroughputEstimator<T>

Parameters:

timeOfRecords - ignored

element - ignored

getFrom

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

Always returns 0.

Specified by:

getFrom in interface ThroughputEstimator<T>

Parameters:

time - ignored

Returns:

0