module Bmg::Relation::Proxy

This module can be used to create typed collection on top of Bmg relations. Algebra methods will be delegated to the decorated relation, and results wrapped in a new instance of the class.

Public Class Methods

new(relation) click to toggle source
# File lib/bmg/relation/proxy.rb, line 11
def initialize(relation)
  @relation = relation
end

Public Instance Methods

method_missing(name, *args, &bl) click to toggle source
Calls superclass method
# File lib/bmg/relation/proxy.rb, line 15
def method_missing(name, *args, &bl)
  if @relation.respond_to?(name)
    res = @relation.send(name, *args, &bl)
    res.is_a?(Relation) ? _proxy(res) : res
  else
    super
  end
end
respond_to?(name, *args) click to toggle source
Calls superclass method
# File lib/bmg/relation/proxy.rb, line 24
def respond_to?(name, *args)
  @relation.respond_to?(name) || super
end
to_json(*args, &bl) click to toggle source
# File lib/bmg/relation/proxy.rb, line 47
def to_json(*args, &bl)
  @relation.to_json(*args, &bl)
end

Protected Instance Methods

_proxy(relation) click to toggle source
# File lib/bmg/relation/proxy.rb, line 53
def _proxy(relation)
  self.class.new(relation)
end
_proxy_tuple(tuple) click to toggle source
# File lib/bmg/relation/proxy.rb, line 57
def _proxy_tuple(tuple)
  tuple
end