Class: Mementus::Graph

Inherits:
Object
  • Object
show all
Defined in:
lib/mementus/graph.rb

Direct Known Subclasses

Library::HerschelGraph, Library::StoryGraph

Instance Method Summary collapse

Constructor Details

#initialize(is_directed = true, &block) ⇒ Graph

Returns a new instance of Graph.



5
6
7
8
9
10
11
 
# File 'lib/mementus/graph.rb', line 5

def initialize(is_directed=true, &block)
  builder = GraphBuilder.new(is_directed)

  builder.instance_eval(&block) if block_given?

  @structure = builder.graph
end

Instance Method Details

#adjacent(id) ⇒ Object 



55
56
57
 
# File 'lib/mementus/graph.rb', line 55

def adjacent(id)
  @structure.adjacent(id)
end

#adjacent_edges(id) ⇒ Object 



59
60
61
 
# File 'lib/mementus/graph.rb', line 59

def adjacent_edges(id)
  @structure.adjacent_edges(id)
end

#directed? ⇒ Boolean

Returns:

  • (Boolean) 


21
22
23
 
# File 'lib/mementus/graph.rb', line 21

def directed?
  @structure.directed?
end

#each_adjacent(node, &blk) ⇒ Object 



67
68
69
 
# File 'lib/mementus/graph.rb', line 67

def each_adjacent(node, &blk)
  @structure.each_adjacent(node, &blk)
end

#each_edge(&blk) ⇒ Object 



71
72
73
 
# File 'lib/mementus/graph.rb', line 71

def each_edge(&blk)
  @structure.each_edge(&blk)
end

#each_node(&blk) ⇒ Object 



63
64
65
 
# File 'lib/mementus/graph.rb', line 63

def each_node(&blk)
  @structure.each_node(&blk)
end

#edge(id) ⇒ Object 



47
48
49
 
# File 'lib/mementus/graph.rb', line 47

def edge(id)
  @structure.edge(id)
end

#edges_count ⇒ Object 



17
18
19
 
# File 'lib/mementus/graph.rb', line 17

def edges_count
  @structure.edges_count
end

#has_edge?(edge) ⇒ Boolean

Returns:

  • (Boolean) 


39
40
41
 
# File 'lib/mementus/graph.rb', line 39

def has_edge?(edge)
  @structure.has_edge?(edge)
end

#has_node?(node) ⇒ Boolean

Returns:

  • (Boolean) 


35
36
37
 
# File 'lib/mementus/graph.rb', line 35

def has_node?(node)
  @structure.has_node?(node)
end

#n(match) ⇒ Object 



25
26
27
28
29
30
31
32
33
 
# File 'lib/mementus/graph.rb', line 25

def n(match)
  if match.is_a?(Hash)
    source = nodes(match)
  else
    source = [node(match)]
  end

  Pipeline::Step.new(source, Pipeline::Pipe.new(self), self)
end

#node(id) ⇒ Object 



43
44
45
 
# File 'lib/mementus/graph.rb', line 43

def node(id)
  @structure.node(id)
end

#nodes(match = nil) ⇒ Object 



51
52
53
 
# File 'lib/mementus/graph.rb', line 51

def nodes(match=nil)
  @structure.nodes(match)
end

#nodes_count ⇒ Object 



13
14
15
 
# File 'lib/mementus/graph.rb', line 13

def nodes_count
  @structure.nodes_count
end