Class: Chef::ResourceCollection::StepableIterator

Inherits:
Object
  • Object
show all
Defined in:
lib/chef/resource_collection/stepable_iterator.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collection = []) ⇒ StepableIterator

Returns a new instance of StepableIterator.



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 30

def initialize(collection=[])
  @position = 0
  @paused = false
  @collection = collection
end

Instance Attribute Details

#collection ⇒ Object

Returns the value of attribute collection.



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 27

def collection
  @collection
end

#position ⇒ Object (readonly)

Returns the value of attribute position.



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 28

def position
  @position
end

Class Method Details

.for_collection(new_collection) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 22

def self.for_collection(new_collection)
  instance = new(new_collection)
  instance
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 40

def each(&block)
  reset_iteration(block)
  @iterator_type = :element
  iterate
end

#each_index(&block) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 46

def each_index(&block)
  reset_iteration(block)
  @iterator_type = :index
  iterate
end

#each_with_index(&block) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 52

def each_with_index(&block)
  reset_iteration(block)
  @iterator_type = :element_with_index
  iterate
end

#iterate_on(iteration_type, &block) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 89

def iterate_on(iteration_type, &block)
  @iterator_type = iteration_type
  @iterator_block = block
end

#pause ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 62

def pause
  @paused = true
end

#paused? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 58

def paused?
  @paused
end

#resume ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 66

def resume
  @paused = false
  iterate
end

#rewind ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 71

def rewind
  @position = 0
end

#size ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 36

def size
  collection.size
end

#skip_back(skips = 1) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 75

def skip_back(skips=1)
  @position -= skips
end

#skip_forward(skips = 1) ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 79

def skip_forward(skips=1)
  @position += skips
end

#step ⇒ Object 



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# File 'lib/chef/resource_collection/stepable_iterator.rb', line 83

def step
  return nil if @position == size
  call_iterator_block
  @position += 1
end