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Contents
class OM::XML::NamedTermProxy
attr_accessor :proxy_pointer, :name, :terminology
include OM::TreeNode
# Creates a Named Proxy that points to another term in the Terminology.
# Unlike regular terms, NamedTermProxy requires you to provide a reference to the containing Terminology.
# This is to ensure that it will always be able to look up the term that it's referencing.
# @param [Symbol] name of the proxy term
# @param [Array] proxy_pointer that points to the Term we're proxying
# @param [OM::XML::Terminology] terminology that this Term is being built for
# @param [Hash] opts additional Term options
def initialize(name, proxy_pointer, terminology, opts={})
opts = {:namespace_prefix=>"oxns", :ancestors=>[], :children=>{}}.merge(opts)
[:children, :ancestors].each do |accessor_name|
instance_variable_set("@#{accessor_name}", opts.fetch(accessor_name, nil) )
end
@terminology = terminology
@name = name
@proxy_pointer = proxy_pointer
end
def proxied_term
if self.parent.nil?
pt = self.terminology.retrieve_term(*self.proxy_pointer)
else
pt = self.parent.retrieve_term(*self.proxy_pointer)
end
if pt.nil?
raise OM::XML::Terminology::BadPointerError "The #{name} proxy term points to #{proxy_pointer.inspect} but that term doesn't exist."
else
return pt
end
end
# do nothing -- this is to prevent errors when the parent term calls generate_xpath_queries! on its children
def generate_xpath_queries!
# do nothing
end
# A proxy term can never serve as the root term of a Terminology.
# Explicitly setting is_root_term? to return false to support proxies that are _at_ the root of the Terminology but aren't _the_ root term.
def is_root_term?
return false
end
def method_missing
end
# Any unknown method calls will be proxied to the proxied term
def method_missing method, *args, &block
return self.proxied_term.send(method, *args)
end
end
Version data entries
10 entries across 10 versions & 1 rubygems