core/org.gnit.lucenekmp.search/MultiCollectorManager

MultiCollectorManager

class MultiCollectorManager(collectorManagers: CollectorManager<out Collector, *>?) : CollectorManager<Collector, Array<Any?>>

A composite CollectorManager which wraps a set of CollectorManager instances, akin to how MultiCollector wraps Collector instances.

Constructors

constructor(vararg collectorManagers: CollectorManager<out Collector, *>?)

Functions

newCollector

open override fun newCollector(): Collector

Return a new Collector. This must return a different instance on each call.

reduce

open override fun reduce(collectors: MutableCollection<Collector>): Array<Any?>

Reduce the results of individual collectors into a meaningful result. For instance a [ ] would compute the top docs of each collector and then merge them using TopDocs.merge. This method must be called after collection is finished on all provided collectors.