Class: Sequel::Plugins::QueryCache::Driver

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

Direct Known Subclasses

DalliDriver, MemcacheDriver

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(store, opts = {}) ⇒ Driver

Returns a new instance of Driver.



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# File 'lib/sequel-query-cache/driver.rb', line 20

def initialize(store, opts={})
  @store = store
  @serializer = opts[:serializer] || _default_serializer
end

Instance Attribute Details

#serializer ⇒ Object (readonly)

Returns the value of attribute serializer.



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# File 'lib/sequel-query-cache/driver.rb', line 18

def serializer
  @serializer
end

#store ⇒ Object (readonly)

Returns the value of attribute store.



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# File 'lib/sequel-query-cache/driver.rb', line 18

def store
  @store
end

Class Method Details

.from_store(store, opts = {}) ⇒ Object 



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# File 'lib/sequel-query-cache/driver.rb', line 5

def self.from_store(store, opts={})
  case store.class.name
  when 'Memcache'
    require 'sequel-query-cache/driver/memcache'
    MemcacheDriver.new(store, opts)
  when 'Dalli::Client'
    require 'sequel-query-cache/driver/dalli'
    DalliDriver.new(store, opts)
  else
    Driver.new(store, opts)
  end
end

Instance Method Details

#del(key) ⇒ Object 



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# File 'lib/sequel-query-cache/driver.rb', line 36

def del(key)
  store.del(key)
  nil
end

#expire(key, time) ⇒ Object 



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# File 'lib/sequel-query-cache/driver.rb', line 41

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

#get(key) ⇒ Object 



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# File 'lib/sequel-query-cache/driver.rb', line 25

def get(key)
  val = store.get(key)
  val ? serializer.deserialize(val) : nil
end

#set(key, val, opts = {}) ⇒ Object 



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

def set(key, val, opts={})
  store.set(key, serializer.serialize(val))
  expire(key, opts[:ttl]) unless opts[:ttl].nil?
  val
end