lib/rtm/javatmapi/core/construct.rb in rtm-javatmapi-0.2.0 vs lib/rtm/javatmapi/core/construct.rb in rtm-javatmapi-0.2.1

@@ -1,43 +1,67 @@
 # Copyright: Copyright 2009 Topic Maps Lab, University of Leipzig.
 # License:   Apache License, Version 2.0
 
 module Java::OrgTmapiCore::Construct
   
+  include RTM::Construct
   extend Superiseable
-  #include RTM::Construct
 
   # Returns the TopicMap instance this Construct belongs to.
   #
   # :call-seq:
   #   topic_map -> TopicMap
   #
   def topic_map
     getTopicMap
   end
   
+  # Returns the parent construct this construct belongs to.
+  #
+  # :call-seq:
+  #   parent -> a construct (TopicMap, Topic, Association or Name)
+  #
+  def parent
+    getParent
+  end
+
   # Returns true if the construct fulfills all constraints defined in the TMDM
   def valid?
     # This is defined in RTM::AR and we test it. I guess from the API perspective, in TMAPI the validness of an object is guaranteed.
     true
   end unless self.method_defined?(:valid?)
 
+
+  # Returns the item identifiers assigned to the current construct.
+  #
+  # :call-seq:
+  #   item_identifiers -> Set of Locators
+  #
+  def item_identifiers
+    getItemIdentifiers
+  end
+
   superised
   # Adds an item identifier to this construct.
   # Identifier may be a String or Locator.
   #
   # :call-seq:
   #   item_identifiers=(identifier)
   #
   def add_item_identifier(identifier)
     # TODO Spec
-    if identifier.is_a? Java::OrgTmapiCore::Locator
-      addItemIdentifier(identifier)
-    else
-      addItemIdentifier(topic_map.create_locator(identifier))
+    begin
+      if identifier.is_a? Java::OrgTmapiCore::Locator
+        addItemIdentifier(identifier)
+      else
+        addItemIdentifier(topic_map.create_locator(identifier))
+      end
+    rescue org.tmapi.core.IdentityConstraintException => ice
+      # TODO add condition to switch off automerge
+      self.mergeIn(self.topic_map.get(identifier))
     end
   end
-  alias :item_identifiers= :add_item_identifier
+  alias :item_identifiers= :add_item_identifier # FIXME ii= is not add! it's set.
 
 
   superised
   # Removes an item identifer from this construct,
   # if present.