Class: Hyperion::Riak::RangeStrategy

Inherits:
Object
  • Object
show all
Defined in:
lib/hyperion/riak/optimized_filter_order.rb

Instance Method Summary collapse

Constructor Details

#initialize(filters, bucket_name) ⇒ RangeStrategy

Returns a new instance of RangeStrategy.



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# File 'lib/hyperion/riak/optimized_filter_order.rb', line 64

def initialize(filters, bucket_name)
  @filters = filters
  @optimizer = OptimizedRangeFilters.new(filters)
end

Instance Method Details

#can_optimize? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hyperion/riak/optimized_filter_order.rb', line 69

def can_optimize?
  @optimizer.less_than_filter && @optimizer.greater_than_filter
end

#filters ⇒ Object 



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# File 'lib/hyperion/riak/optimized_filter_order.rb', line 81

def filters
  @optimizer.remaining_filters
end

#optimal_index_field ⇒ Object 



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# File 'lib/hyperion/riak/optimized_filter_order.rb', line 73

def optimal_index_field
  @optimizer.less_than_filter.field
end

#optimal_index_value ⇒ Object 



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# File 'lib/hyperion/riak/optimized_filter_order.rb', line 77

def optimal_index_value
  @value ||= @optimizer.less_than_filter.value.to_s .. @optimizer.greater_than_filter.value.to_s
end