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Contents
module Picky
module Backends
class Redis
# Redis Backend Accessor.
#
# Provides necessary helper methods for its
# subclasses.
# Not directly useable, as it does not provide
# dump/load methods.
#
class Basic
attr_reader :client, :namespace
# An index cache takes a path, without file extension,
# which will be provided by the subclasses.
#
def initialize client, namespace, options = {}
@client = client
@namespace = namespace
@empty = options[:empty]
@initial = options[:initial]
@realtime = options[:realtime]
end
# The empty index that is used for putting the index
# together.
#
def empty
@empty && @empty.clone || (@realtime ? self.reset : {})
end
# The initial content before loading.
#
# Note: As Redis indexes needn't be loaded per se,
# this just returns the same thing as #load.
#
def initial
@initial && @initial.clone || (@realtime ? self.reset : {})
end
# Returns itself.
#
def load
self
end
# We do not use Redis to retrieve data.
#
def retrieve
# Nothing.
end
# Clears the whole namespace.
#
def reset
clear
self
end
#
#
def to_s
"#{self.class}(#{namespace}:*)"
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems