public final class LongLastValueAggregator extends Object
Limitation: The current implementation does not store a time when the value was recorded, so merging multiple LastValueAggregators will not preserve the ordering of records. This is not a problem because LastValueAggregator is currently only available for Observers which record all values once.
Constructor and Description |
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LongLastValueAggregator() |
Modifier and Type | Method and Description |
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static AggregatorFactory |
getFactory()
Returns an
AggregatorFactory that produces LongLastValueAggregator instances. |
void |
mergeToAndReset(Aggregator other)
Merges the current value into the given
aggregator and resets the current value in this
Aggregator . |
void |
recordDouble(double value)
Updates the current aggregator with a newly recorded
double value. |
void |
recordLong(long value)
Updates the current aggregator with a newly recorded
long value. |
MetricData.Point |
toPoint(long startEpochNanos,
long epochNanos,
io.opentelemetry.common.Labels labels)
Returns the
Point with the given properties and the value from this Aggregation. |
public static AggregatorFactory getFactory()
AggregatorFactory
that produces LongLastValueAggregator
instances.AggregatorFactory
that produces LongLastValueAggregator
instances.@Nullable public MetricData.Point toPoint(long startEpochNanos, long epochNanos, io.opentelemetry.common.Labels labels)
Aggregator
Point
with the given properties and the value from this Aggregation.startEpochNanos
- the startEpochNanos for the Point
.epochNanos
- the epochNanos for the Point
.labels
- the labels for the Point
.Point
with the value from this Aggregation.public void recordLong(long value)
Aggregator
long
value.recordLong
in interface Aggregator
value
- the new long
value to be added.public void mergeToAndReset(Aggregator other)
Aggregator
aggregator
and resets the current value in this
Aggregator
.mergeToAndReset
in interface Aggregator
other
- value to merge into.public void recordDouble(double value)
Aggregator
double
value.recordDouble
in interface Aggregator
value
- the new double
value to be added.