Sha256: 3288e6417adcb80a3d21fc32b3e00f032ec74f7b7d6b346f873fb1f857b37ddd
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Versions: 7
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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]
end
# The empty index that is used for putting the index
# together.
#
def empty
@empty && @empty.clone || {}
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 || self
end
# Returns itself.
#
def load
self
end
# We do not use Redis to retrieve data.
#
def retrieve
# Nothing.
end
# Deletes the Redis index namespace.
#
def delete
# Not implemented here.
# Note: backend.flushdb might be the way to go,
# but since we cannot delete by key pattern,
# we don't do anything.
end
#
#
def to_s
"#{self.class}(#{namespace}:*)"
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems