Class: Linkage::Comparators::Compare
- Inherits:
-
Binary
show all
- Defined in:
- lib/linkage/comparators/compare.rb
Constant Summary
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- @@parameters =
[:any, :static => false, :side => :first],
[String, :values => %w{> >= <= < !=}],
[:any, :same_type_as => 0, :static => false, :side => :second]
- @@comparator_name =
'compare'
Instance Attribute Summary
#args, #lhs_args, #rhs_args
Class Method Summary
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Instance Method Summary
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Methods inherited from Binary
score_range
[], register, score_range
Constructor Details
#initialize(*args) ⇒ Compare
Returns a new instance of Compare.
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# File 'lib/linkage/comparators/compare.rb', line 18
def initialize(*args)
super
@name_1 = @args[0].name
@operator = @args[1].object
@name_2 = @args[2].name
end
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Class Method Details
.comparator_name ⇒ Object
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# File 'lib/linkage/comparators/compare.rb', line 14
def self.comparator_name
@@comparator_name
end
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.parameters ⇒ Object
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# File 'lib/linkage/comparators/compare.rb', line 9
def self.parameters
@@parameters
end
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Instance Method Details
#score(record_1, record_2) ⇒ Object
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# File 'lib/linkage/comparators/compare.rb', line 25
def score(record_1, record_2)
result =
case @operator
when '!='
record_1[@name_1] != record_2[@name_2]
when '>'
record_1[@name_1] > record_2[@name_2]
when '>='
record_1[@name_1] >= record_2[@name_2]
when '<='
record_1[@name_1] <= record_2[@name_2]
when '<'
record_1[@name_1] < record_2[@name_2]
end
result ? 1 : 0
end
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