Class: Dokkit::Factory

Inherits:
Object
  • Object
show all
Defined in:
lib/dokkit/factory/factory.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize {|_self| ... } ⇒ Factory

Initialize a Factory object. Configuration is made passing a code block.

Yields:

  • (_self)

Yield Parameters:



20
21
22
23
 
# File 'lib/dokkit/factory/factory.rb', line 20

def initialize
  @instances, @methods = { }, { }
  yield self if block_given?
end

Instance Attribute Details

#instances ⇒ Object (readonly)

Return stored instances.



13
14
15
 
# File 'lib/dokkit/factory/factory.rb', line 13

def instances
  @instances
end

#methods ⇒ Object (readonly)

Return stored factory method.



16
17
18
 
# File 'lib/dokkit/factory/factory.rb', line 16

def methods
  @methods
end

Instance Method Details

#add(key, &factory_method) ⇒ Object

Add a factory method associated with the given class of objects. factory_method is a class/method pair.

Example:

factory.add(:bar) { Bar.new } # add a method that

# instantiates Bar object



33
34
35
 
# File 'lib/dokkit/factory/factory.rb', line 33

def add(key, &factory_method)
  @methods[key] = factory_method
end

#get(key, *params) ⇒ Object

Construct an instance for the given class. Note that, if an instance of the same class has been already instantiated for a given parameters set, then no new instance will be created but the first one will be returned.



41
42
43
 
# File 'lib/dokkit/factory/factory.rb', line 41

def get(key, *params)
  get_instance(key, *params) || store_instance(key, *params)
end