Class: WAB::Impl::Between

Inherits:
PathExpr show all
Defined in:
lib/wab/impl/exprs/between.rb

Overview

Matches numeric nodes between a minimum and maximum value. By default the matches are inclusive of the minimum and maximum. The optional arguments allow the inclusivity to be changed to exclusive separately for the minimum and maximum. By default the min_incl and max_incl are true. If set to false the corresponding limit becomes exclusive. An error is returned if used with non-numeric minimum or maximum.

Instance Method Summary collapse

Constructor Details

#initialize(path, min, max, min_incl = true, max_incl = true) ⇒ Between

Creates a new instance with the provided parameters.

path

path to the value to compare

min

minimum

max

maximum

min_incl

minimum inclusive flag

max_incl

maximum inclusive flag



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# File 'lib/wab/impl/exprs/between.rb', line 20

def initialize(path, min, max, min_incl=true, max_incl=true)
  super(path)
  @min = min
  @max = max
  @min_incl = min_incl
  @max_incl = max_incl
end

Instance Method Details

#eval(data) ⇒ Object 



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# File 'lib/wab/impl/exprs/between.rb', line 28

def eval(data)
  value = data.get(path)
  return false if (@min_incl ? value < @min : value <= @min)
  return false if (@max_incl ? @max < value : @max <= value)
  true
end

#native ⇒ Object 



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# File 'lib/wab/impl/exprs/between.rb', line 35

def native()
  ['BETWEEN', path, @min, @max, @min_incl, @max_incl]
end