Abstract Protected constructorConstruct an AbstractDoubleAggregator that will aggregate numeric values extracted from the cache entries.
the server-side EntryAggregator implementation type identifier
the extractor that provides values to aggregate or the name of the method that could be invoked via Java reflection and that returns values to aggregate; this parameter can also be a dot-delimited sequence of method names which would result in an aggregator based on the ChainedExtractor that is based on an array of corresponding UniversalExtractor objects
Protected @classServer-side EntryAggregator implementation type identifier.
Protected Optional extractorThe ValueExtractor to apply when aggregating results.
Returns a CompositeAggregator comprised of this and the provided aggregator.
a CompositeAggregator comprised of this and the provided aggregator
the next aggregator
Abstract aggregator that processes numeric values extracted from a set of entries in a Map. All the extracted Number objects will be treated as Java double values and the result of the aggregator is a Double. If the set of entries is empty, a null result is returned.