Class: Riak::MapReduce::Results Private

Inherits:
Object
  • Object
show all
Defined in:
lib/riak/map_reduce/results.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Collects and normalizes results from MapReduce requests

Instance Method Summary collapse

Constructor Details

#initialize(mr) ⇒ Results

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Creates a new result collector


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# File 'lib/riak/map_reduce/results.rb', line 8

def initialize(mr)
  @keep_count = mr.query.select {|p| p.keep }.size
  @hash = create_results_hash(mr.query)
end

Instance Method Details

#add(phase, result) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Adds a new result to the collector


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# File 'lib/riak/map_reduce/results.rb', line 16

def add(phase, result)
  @hash[phase] += result
end

#reportArray

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Coalesces the query results


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# File 'lib/riak/map_reduce/results.rb', line 23

def report
  if @keep_count > 1
    @hash.to_a.sort.map {|(num, results)| results }
  else
    @hash[@hash.keys.first]
  end
end