Sha256: ad825aa4a147e04742341594416ddd5b3eb15a68bffbea6881544777413ae547
Contents?: true
Size: 795 Bytes
Versions: 55
Compression:
Stored size: 795 Bytes
Contents
# encoding: utf-8
module Mongoid #:nodoc:
module Collections #:nodoc:
class CyclicIterator
attr_reader :counter
# Performs iteration over an array, if the array gets to the end then loop
# back to the first.
#
# Example:
#
# <tt>CyclicIterator.new([ first, second ])</tt>
def initialize(array)
@array, @counter = array, -1
end
# Get the next element in the array. If the element is the last in the
# array then return the first.
#
# Example:
#
# <tt>iterator.next</tt>
#
# Returns:
#
# The next element in the array.
def next
(@counter == @array.size - 1) ? @counter = 0 : @counter = @counter + 1
@array[@counter]
end
end
end
end
Version data entries
55 entries across 55 versions & 8 rubygems