Class: Vizier::Node

Inherits:

Base

• Object
• Base
• Vizier::Node

show all

Includes:

Support

Defined in:

lib/support/vizier.rb

Constant Summary

Constant Summary

Constants included from Support

Support::LEGAL_CHARS

Instance Attribute Summary (collapse)

• - (Object) fields

  Returns the value of attribute fields.

• - (Object) name

  Returns the value of attribute name.

• - (Object) object

  Returns the value of attribute object.

Class Method Summary (collapse)

• + (Object) first_response(obj, *method_names)
• + (Object) make_name(obj)

Instance Method Summary (collapse)

• - (Node) initialize(name = nil, attrs = {}) constructor

  A new instance of Node.

• - (Object) to_s
• - (Object) to_str

Methods included from Support

#attributes, #attributes=, included, #legal?, #quote, #sanitize

Methods inherited from Base

#[], #[]=

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# File 'lib/support/vizier.rb', line 132

def initialize( name = nil, attrs={} )
  self.attributes = attrs
  if name.is_a?( String )
    self.name = name
    @label = attrs.delete(:label) || name
  else
    @object = name
    self.name = Node.make_name( @object )
    @label = attrs.delete(:label) || Node.first_response( @object, :name, :identifier, :label ) || name
  end
end

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# File 'lib/support/vizier.rb', line 129

def fields
  @fields
end

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# File 'lib/support/vizier.rb', line 130

def name
  @name
end

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# File 'lib/support/vizier.rb', line 128

def object
  @object
end

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# File 'lib/support/vizier.rb', line 148

def self.first_response obj, *method_names
  responder = method_names.flatten.detect { |m| obj.respond_to?(m) }
  obj.send( responder ) unless responder.nil?
end

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# File 'lib/support/vizier.rb', line 144

def self.make_name( obj )
  sanitize [ obj.class, first_response( obj, :name, :identifier, :id, :hash)].join('_')
end

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# File 'lib/support/vizier.rb', line 161

def to_s
  quote( name )
end

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# File 'lib/support/vizier.rb', line 157

def to_str
  "#{quote name} #{attributes.to_s};"
end