public bool UpdateWhenChanged(IEnumerable <MetricDefinition> metricDefinitions)
{
if (this.MetricDefinitions == null || !this.MetricDefinitions.SequenceEqual(
metricDefinitions,
GenericEqualityComparer <MetricDefinition> .CreateComparer((a, b) => a.ValueEquals(b), a => a.GetHashCode())))
{
this.MetricDefinitions = metricDefinitions;
return(true);
}
return(false);
}