Check the consistency of a read result. This method should be invoked if the check function is defined for the migration and both reads ("new"/"old") were done.

Declaration

public void Consistency(Func<bool> checker)

Parameters

Type	Name	Description
Func<bool>	checker	check method which returns true if the results were consistent

Remarks

If the consistency check function throws an exception, then no measurement for consistency will be included in the generated migration op event.

Example calling the check function from the migration config.

 if (checker != null &&
  oldResult.IsSuccessful &&
  newResult.IsSuccessful
) {
  tracker.Consistency(() =&gt; checker(oldResult.Result,
  oldResult.Result));
}

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Error(MigrationOrigin)

Report that an error has occurred for the specified origin.

Declaration

public void Error(MigrationOrigin origin)

Parameters

Type	Name	Description
MigrationOrigin	origin	the origin of the error

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Invoked(MigrationOrigin)

Call this to report that an origin was invoked (executed). There are some situations where the expectation is that both the old and new implementation will be used, but with writes it is possible that the non-authoritative will not execute. Reporting the execution allows for more accurate analytics.

Declaration

public void Invoked(MigrationOrigin origin)

Parameters

Type	Name	Description
MigrationOrigin	origin	the origin that was invoked

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Latency(MigrationOrigin, TimeSpan)

Report the latency of an operation.

Declaration

public void Latency(MigrationOrigin origin, TimeSpan duration)

Parameters

Type	Name	Description
MigrationOrigin	origin	the origin the latency is being reported for
TimeSpan	duration	the latency of the operation

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Op(MigrationOperation)

Sets the migration related operation associated with these tracking measurements.

Declaration

public void Op(MigrationOperation operation)

Parameters

Type	Name	Description
MigrationOperation	operation	the operation being tracked