Class: RGen::MetamodelBuilder::Intermediate::Attribute

Inherits:
Feature
  • Object
show all
Defined in:
lib/rgen/metamodel_builder/intermediate/feature.rb

Constant Summary collapse

Properties = 
{ 
  :name => :required, 
  :ordered => :required, 
  :unique => :required,
  :changeable => :required,
  :volatile => :required,
  :transient => :required,
  :unsettable => :required,
  :derived => :required,
  :lowerBound => :required,
  :upperBound => :required,
  :defaultValueLiteral => :optional
}
Defaults = 
{
  :ordered => true,
  :unique => true,
  :changeable => true,
  :volatile => false,
  :transient => false,
  :unsettable => false,
  :derived => false,
  :lowerBound => 0
}
Types = 
{ 
  String => :EString,
  Integer => :EInt,
  RGen::MetamodelBuilder::DataTypes::Long => :ELong,
  Float => :EFloat,
  RGen::MetamodelBuilder::DataTypes::Boolean => :EBoolean,
  Object => :ERubyObject,
  Class => :ERubyClass 
}

Instance Attribute Summary

Attributes inherited from Feature

#etype, #impl_type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Feature

#annotations, #many?, #reference?, #value

Constructor Details

#initialize(type, props) ⇒ Attribute

Returns a new instance of Attribute.



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# File 'lib/rgen/metamodel_builder/intermediate/feature.rb', line 85

def initialize(type, props)
  @props = Defaults.merge(props)
  type ||= String
  @etype = Types[type]
  if @etype
    @impl_type = type
  elsif type.is_a?(RGen::MetamodelBuilder::DataTypes::Enum)
    @etype = :EEnumerable
    @impl_type = type
  else
    raise ArgumentError.new("invalid type '#{type}'")
  end
  if @props[:derived]
    @props[:changeable] = false
    @props[:volatile] = true
    @props[:transient] = true
  end    
  check(Properties)
end

Class Method Details

.default_value(prop) ⇒ Object 



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# File 'lib/rgen/metamodel_builder/intermediate/feature.rb', line 77

def self.default_value(prop)
  Defaults[prop]
end

.properties ⇒ Object 



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# File 'lib/rgen/metamodel_builder/intermediate/feature.rb', line 81

def self.properties
  Properties.keys.sort{|a,b| a.to_s <=> b.to_s}
end