Class: Hydrangea::Flow

Inherits:
Object
  • Object
show all
Defined in:
lib/hydrangea/flow.rb

Instance Method Summary collapse

Constructor Details

#initialize(graph) ⇒ Flow

Returns a new instance of Flow.



9
10
11
 
# File 'lib/hydrangea/flow.rb', line 9

def initialize(graph)
  @graph = graph
end

Instance Method Details

#map_each(states = SUCCESS) ⇒ Object 



13
14
15
16
17
18
19
 
# File 'lib/hydrangea/flow.rb', line 13

def map_each(states = SUCCESS)
  pgt = PartialGraphTransform.new(@graph, states)
  pgt.untransformed.each do |node|
    yield SingleNode.new(pgt, node)
  end
  self.class.new(pgt.finish)
end

#map_list(states = SUCCESS) {|ListOfNodes.new(pgt)| ... } ⇒ Object

Yields:



21
22
23
24
25
 
# File 'lib/hydrangea/flow.rb', line 21

def map_list(states = SUCCESS)
  pgt = PartialGraphTransform.new(@graph, states)
  yield ListOfNodes.new(pgt)
  self.class.new(pgt.finish)
end

#map_values(states = SUCCESS) {|NodesByValue.new(pgt)| ... } ⇒ Object

Yields:



27
28
29
30
31
 
# File 'lib/hydrangea/flow.rb', line 27

def map_values(states = SUCCESS)
  pgt = PartialGraphTransform.new(@graph, states)
  yield NodesByValue.new(pgt)
  self.class.new(pgt.finish)
end

#sink(states = SUCCESS) ⇒ Object 



33
34
35
 
# File 'lib/hydrangea/flow.rb', line 33

def sink(states = SUCCESS)
  GraphPartition[states].select(@graph)
end