Package uk.ac.starlink.ttools.task
Interface Aggregator.Aggregation
- Enclosing interface:
Aggregator
public static interface Aggregator.Aggregation
Object that can manage aggregation for a given type of input data.
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Method Summary
Modifier and TypeMethodDescriptionReturns an object which can perform aggregation on a number of typed values.uk.ac.starlink.table.ValueInfo
Returns metadata describing the result of the aggregation.
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Method Details
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getResultInfo
uk.ac.starlink.table.ValueInfo getResultInfo()Returns metadata describing the result of the aggregation.- Returns:
- output metadata
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createAccumulator
Aggregator.Accumulator createAccumulator()Returns an object which can perform aggregation on a number of typed values.- Returns:
- accumulator, not threadsafe
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