Module: MetaHashMethods

Included in:
KVJ
Defined in:
lib/meta_hash_methods.rb

Instance Method Summary collapse

Instance Method Details

#generate_hash_functions ⇒ Object 



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# File 'lib/meta_hash_methods.rb', line 20

def generate_hash_functions
  methods = Hash.instance_methods - KVJ.instance_methods
  write_methods = methods.select { |method| method =~ /=|!|delete/ }
  read_only_methods = methods - write_methods

  read_only_methods.each do |method|
    inheritage_hash_method(method, :read)
  end

  write_methods.each do |method|
    inheritage_hash_method(method, :write)
  end
end

#inheritage_hash_method(method, level) ⇒ Object 



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# File 'lib/meta_hash_methods.rb', line 2

def inheritage_hash_method(method, level)
  define_method(method) do |*arg, &block|
    begin
      if level == :write
        @file_connector.grab_ex_lock
      else
        @file_connector.grab_sh_lock
      end
      hash = @file_connector.read
      return_value = hash.send(method, *arg, &block)
      @file_connector.write(hash) if level == :write
      return return_value
    ensure
      @file_connector.release_lock
    end
  end
end