Class: HierarchicalGraph::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/hierarchical_graph/node.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(graph, id, data = {}) ⇒ Node

Returns a new instance of Node.



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# File 'lib/hierarchical_graph/node.rb', line 6

def initialize(graph, id, data={})
  @graph = graph
  @id = id
  @data = data
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/hierarchical_graph/node.rb', line 4

def data
  @data
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/hierarchical_graph/node.rb', line 4

def id
  @id
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 12

def [](key)
  data[key]
end

#[]=(key, value) ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 16

def []=(key, value)
  data[key] = value
end

#ancestors ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 28

def ancestors
  graph.ancestors_of id
end

#children ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 24

def children
  graph.children_of id
end

#descendants ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 32

def descendants
  graph.descendants_of id
end

#parents ⇒ Object 



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# File 'lib/hierarchical_graph/node.rb', line 20

def parents
  graph.parents_of id
end

#root? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hierarchical_graph/node.rb', line 36

def root?
  parents.empty?
end

#to_s ⇒ Object Also known as: inspect 



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# File 'lib/hierarchical_graph/node.rb', line 40

def to_s
  "<#{self.class.name} #{id} parents:[#{parents.map(&:id).join(', ')}] children:[#{children.map(&:id).join(', ')}]>"
end