Summarizer.Combiner (Apache Accumulo Project 2.1.3 API)

Enclosing interface:: Summarizer

public static interface Summarizer.Combiner

A Combiner is used to merge statistics emitted from Summarizer.Collector.summarize(Summarizer.StatisticConsumer) and from previous invocations of itself.

Since:: 2.0.0

Method Summary

Modifier and Type

Method

Description

void

merge(Map<String,Long> statistics1, Map<String,Long> statistics2)

This method should merge the statistics in the second map into the first map.

Method Details
- merge
  
  void merge(Map<String,Long> statistics1, Map<String,Long> statistics2)
  
  This method should merge the statistics in the second map into the first map. Both maps may have statistics produced by a Summarizer.Collector or previous calls to this method.
  If first map is too large after this call, then it may not be stored. See the comment on Summarizer.Collector.summarize(Summarizer.StatisticConsumer)