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module ChefZero
module Solr
module Query
class BinaryOperator
def initialize(left, operator, right)
@left = left
@operator = operator
@right = right
end
def to_s
"(#{left} #{operator} #{right})"
end
attr_reader :left
attr_reader :operator
attr_reader :right
def matches_doc?(doc)
case @operator
when 'AND'
left.matches_doc?(doc) && right.matches_doc?(doc)
when 'OR'
left.matches_doc?(doc) || right.matches_doc?(doc)
when '^'
left.matches_doc?(doc)
when ':'
if left.respond_to?(:literal_string) && left.literal_string
values = doc[left.literal_string]
else
values = doc.matching_values { |key| left.matches_values?([key]) }
end
right.matches_values?(values)
end
end
def matches_values?(values)
case @operator
when 'AND'
left.matches_values?(values) && right.matches_values?(values)
when 'OR'
left.matches_values?(values) || right.matches_values?(values)
when '^'
left.matches_values?(values)
when ':'
raise ": does not work inside a : or term"
end
end
end
end
end
end
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