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require 'rgen/metamodel_builder/data_types'
module RGen
module MetamodelBuilder
module Intermediate
class Feature
attr_reader :etype, :impl_type
def value(prop)
@props[prop]
end
def annotations
@annotations ||= []
end
def many?
value(:upperBound) > 1 || value(:upperBound) == -1
end
def reference?
is_a?(Reference)
end
protected
def check(props)
@props.keys.each do |p|
kind = props[p]
raise StandardError.new("invalid property #{p}") unless kind
raise StandardError.new("property '#{p}' not set") if value(p).nil? && kind == :required
end
end
end
class Attribute < Feature
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
}
def self.default_value(prop)
Defaults[prop]
end
def self.properties
Properties.keys.sort{|a,b| a.to_s <=> b.to_s}
end
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
end
class Reference < Feature
attr_accessor :opposite
Properties = {
:name => :required,
:ordered => :required,
:unique => :required,
:changeable => :required,
:volatile => :required,
:transient => :required,
:unsettable => :required,
:derived => :required,
:lowerBound => :required,
:upperBound => :required,
:resolveProxies => :required,
:containment => :required
}
Defaults = {
:ordered => true,
:unique => true,
:changeable => true,
:volatile => false,
:transient => false,
:unsettable => false,
:derived => false,
:lowerBound => 0,
:resolveProxies => true
}
def self.default_value(prop)
Defaults[prop]
end
def self.properties
Properties.keys.sort{|a,b| a.to_s <=> b.to_s}
end
def initialize(type, props)
@props = Defaults.merge(props)
if type.respond_to?(:_metamodel_description)
@etype = nil
@impl_type = type
else
raise ArgumentError.new("'#{type}' (#{type.class}) is not a MMBase in reference #{props[:name]}")
end
if @props[:derived]
@props[:changeable] = false
@props[:volatile] = true
@props[:transient] = true
end
check(Properties)
end
end
end
end
end
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