Class: Duality

Inherits:

Object

• Object
• Duality

show all

Defined in:

lib/duality.rb

Constant Summary

VERSION =

"0.0.5"

Instance Method Summary (collapse)

• - (Object) delete(key) (also: #remove)

  Delete from both - async.

• - (Object) flush (also: #clean)

  Flush caches - async.

• - (Object) flush_expired (also: #cleanup)
• - (Object) get(key) (also: #load)

  Get from fast or slow.

• - (Duality) initialize(fast, slow) constructor

  A new instance of Duality.

• - (Object) method_missing(meth, *args, &block)

  Add support for other methods from passed caches this adds support only, but no speed gains.

• - (Object) set(key, value) (also: #save)

  Set to fast and slow.

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# File 'lib/duality.rb', line 6

def initialize fast, slow
  # check params are caches
  raise NotACache unless fast.respond_to?(:set) && fast.respond_to?(:get)
  raise NotACache unless slow.respond_to?(:set) && slow.respond_to?(:get)
  @fast = fast
  @slow = slow
end

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# File 'lib/duality.rb', line 61

def method_missing(meth, *args, &block)
  if meth =~ /^strict_(.+)$/
    meth = $1
    return run_missing_method(meth, *args, &block) if @fast.respond_to?(meth) && @slow.respond_to?(meth)
  elsif @fast.respond_to?(meth) || @slow.respond_to?(meth)
    return run_missing_method(meth, *args, &block) 
  end
  super
end

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# File 'lib/duality.rb', line 23

def delete key
  run_method(:delete, key)
end

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# File 'lib/duality.rb', line 29

def flush
  run_method(:flush)
end

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# File 'lib/duality.rb', line 34

def flush_expired
  run_method(:flush_expired)
end

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# File 'lib/duality.rb', line 41

def get key
  content = nil
  begin
    content = @fast.get(key) 
  rescue Exception
  end

  return content unless content.nil?

  begin
    content = @slow.get(key) 
  rescue Exception
  end
  return content
end

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# File 'lib/duality.rb', line 17

def set key, value
  run_method(:set, key, value)
end