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module Vedeu
# Conveyor belt like storage. The belt can move forward (`load_next`) or
# backwards (`load_previous`), or a named entry can be retrieved.
class ConveyorStore
include Vedeu::Store
# @param storage [Array]
# @return [Vedeu::ConveyorStore]
def initialize(storage = [])
@storage = storage
end
# @return [Object]
def load
storage.first
end
alias_method :current, :load
# @param name [String]
# @return [Object]
def load_named(name)
return nil if empty?
return nil unless storage.include?(name)
storage.rotate!(storage.index(name))
load
end
# @return [Object]
def load_next
storage.rotate!
load
end
# @return [Object]
def load_previous
storage.rotate!(-1)
load
end
# @param data [Object]
# @param front [Boolean]
def save(data, front = false)
if front
storage.push(data)
else
storage.unshift(data)
end
end
private
# @return [Array]
def in_memory
[]
end
end # ConveyorStore
end # Vedeu
Version data entries
14 entries across 14 versions & 1 rubygems