Class: Sequel::Plugins::Cacheable::Driver

Inherits:
Object
  • Object
show all
Defined in:
lib/sequel-cacheable/driver.rb

Direct Known Subclasses

DalliDriver, MemcacheDriver, RedisDriver

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(store, pack_lib = MessagePackPacker) ⇒ Driver

Returns a new instance of Driver.



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# File 'lib/sequel-cacheable/driver.rb', line 19

def initialize(store, pack_lib = MessagePackPacker)
  @store = store
  @packer = pack_lib
end

Class Method Details

.factory(*args) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 6

def self.factory(*args)
  case args[0].class.name
  when 'Memcache'
    MemcacheDriver.new(*args)
  when 'Dalli::Client'
    DalliDriver.new(*args)
  when 'Redis'
    RedisDriver.new(*args)
  else
    Driver.new(*args)
  end
end

Instance Method Details

#del(key) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 37

def del(key)
  @store.del(key)

  return nil
end

#expire(key, time) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 43

def expire(key, time)
  @store.expire(key, time)
end

#fetch(key, ttl = nil, &block) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 47

def fetch(key, ttl = nil, &block)
  get(key) || set(key, block.call, ttl)
end

#get(key) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 24

def get(key)
  val = @store.get(key)

  return val.nil? || val.empty? ? nil : @packer.unpack(val)
end

#set(key, val, expire = nil) ⇒ Object 



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# File 'lib/sequel-cacheable/driver.rb', line 30

def set(key, val, expire = nil)
  @store.set(key, @packer.pack(val))
  expire(key, expire) unless expire.nil?

  return val
end