Class: Pacer::Wrappers::WrapperSelector

Inherits:
Object
  • Object
show all
Defined in:
lib/pacer/wrappers/wrapper_selector.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(extensions = []) ⇒ WrapperSelector

Returns a new instance of WrapperSelector.



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 29

def initialize(extensions = [])
  @extensions = extensions
end

Instance Attribute Details

#edge_wrapper ⇒ Object

Returns the value of attribute edge_wrapper.



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 27

def edge_wrapper
  @edge_wrapper
end

#extensions ⇒ Object (readonly)

Returns the value of attribute extensions.



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 26

def extensions
  @extensions
end

#vertex_wrapper ⇒ Object

Returns the value of attribute vertex_wrapper.



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 27

def vertex_wrapper
  @vertex_wrapper
end

Class Method Details

.build(graph, element_type = nil, extensions = []) ⇒ Object 



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 6

def self.build(graph, element_type = nil, extensions = [])
  if graph
    if element_type == :vertex
      graph.base_vertex_wrapper.wrapper_for extensions
    elsif element_type == :edge
      graph.base_edge_wrapper.wrapper_for extensions
    else
      new extensions
    end
  else
    if element_type == :vertex
      Pacer::Wrappers::VertexWrapper.wrapper_for extensions
    elsif element_type == :edge
      Pacer::Wrappers::EdgeWrapper.wrapper_for extensions
    else
      new extensions
    end
  end
end

Instance Method Details

#new(graph, element) ⇒ Object 



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 49

def new(graph, element)
  w = wrapper(graph, element)
  if w
    w.new graph, element
  else
    element
  end
end

#wrapper(graph, element) ⇒ Object 



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# File 'lib/pacer/wrappers/wrapper_selector.rb', line 33

def wrapper(graph, element)
  if graph
    if element.is_a? Vertex
      self.vertex_wrapper ||= graph.base_vertex_wrapper.wrapper_for extensions
    elsif element.is_a? Edge
      self.edge_wrapper ||= graph.base_edge_wrapper.wrapper_for extensions
    end
  else
    if element.is_a? Vertex
      self.vertex_wrapper ||= Pacer::Wrappers::VertexWrapper.wrapper_for extensions
    elsif element.is_a? Edge
      self.edge_wrapper ||= Pacer::Wrappers::EdgeWrapper.wrapper_for extensions
    end
  end
end