Added return on unserialize; added create for all classes

svn: r18286

src/gen/lib/baseobj.py

@@ -186,3 +186,8 @@ class BaseObject(object):
         :type acquisition: BaseObject
         """
         pass
+
+    @classmethod
+    def create(cls, data):
+        return cls().unserialize(data)
+

src/gen/lib/event.py

@@ -129,6 +129,7 @@ class Event(SourceBase, NoteBase, MediaBase, AttributeBase,
         AttributeBase.unserialize(self, attribute_list)
         SourceBase.unserialize(self, source_list)
         NoteBase.unserialize(self, note_list)
+        return self
 
     def _has_handle_reference(self, classname, handle):
         """

src/gen/lib/family.py

@@ -147,6 +147,7 @@ class Family(SourceBase, NoteBase, MediaBase, AttributeBase, LdsOrdBase,
         NoteBase.unserialize(self, note_list)
         LdsOrdBase.unserialize(self, lds_seal_list)
         TagBase.unserialize(self, tag_list)
+        return self
 
     def _has_handle_reference(self, classname, handle):
         """