Class: TeguGears::MemoRepository

Inherits:
Object
  • Object
show all
Defined in:
lib/tegu_gears/memo_repository.rb

Overview

This works like a pass through to other caching tools, or keeps things in a hash. Each class hosting TeguGear has its own entry in this repository, as does each composition. Other caching tools may be useful to monitor the cache size, distribute it, or reduce different kinds of caching. I use a key/value interface, because that should work well with Memcache, Tokyo Cabinet, Redis, Hash, CouchDB, and other tools.

I refactored to a centrally-managed repository because distributed caching doesn’t make sense for expensive computations. There’s probably another abstraction available that will allow distributed caching only when configured, but I’ll get to that when I write a configuration harness.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(store = Hash.new) ⇒ MemoRepository

Returns a new instance of MemoRepository.



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# File 'lib/tegu_gears/memo_repository.rb', line 32

def initialize(store=Hash.new)
  @store = store
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



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# File 'lib/tegu_gears/memo_repository.rb', line 36

def method_missing(sym, *args, &block)
  self.store.send(sym, *args, &block)
end

Instance Attribute Details

#store ⇒ Object (readonly)

Returns the value of attribute store.



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# File 'lib/tegu_gears/memo_repository.rb', line 31

def store
  @store
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/tegu_gears/memo_repository.rb', line 22

def instance
  @@instance ||= new(REPOSITORY_CLASS.new)
end

.method_missing(sym, *args, &block) ⇒ Object 



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# File 'lib/tegu_gears/memo_repository.rb', line 26

def method_missing(sym, *args, &block)
  instance.send(sym, *args, &block)
end

Instance Method Details

#flush_for(caller) ⇒ Object 



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# File 'lib/tegu_gears/memo_repository.rb', line 58

def flush_for(caller)
  self.store[caller] = REPOSITORY_CLASS.new
end

#for(caller, key = nil) ⇒ Object 



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# File 'lib/tegu_gears/memo_repository.rb', line 53

def for(caller, key=nil)
  self.store[caller] ||= REPOSITORY_CLASS.new
  key ? self.store[caller][key] : self.store[caller]
end

#set(caller, key, value) ⇒ Object

Expects a hash on the other end, for now.



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# File 'lib/tegu_gears/memo_repository.rb', line 41

def set(caller, key, value)
  key = simplify_key(key)
  self.store[caller] ||= REPOSITORY_CLASS.new
  self.store[caller][key] = value
end