Added first steps toward Taxonomy module.

modules/taxonomy/persistence/cms_taxonomy_storage_null.e

@@ -0,0 +1,67 @@
+note
+	description: "Summary description for {CMS_TAXONOMY_STORAGE_NULL}."
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	CMS_TAXONOMY_STORAGE_NULL
+
+inherit
+	CMS_TAXONOMY_STORAGE_I
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	make
+			-- Initialize `Current'.
+		do
+			create error_handler.make
+		end
+
+feature -- Error Handling
+
+	error_handler: ERROR_HANDLER
+			-- Error handler.	
+
+feature -- Access
+
+	vocabulary_count: INTEGER_64
+			-- Count of vocabularies.
+		do
+		end
+
+	term_count_from_vocabulary (a_vocab: CMS_VOCABULARY): INTEGER_64
+			-- Number of terms from vocabulary `a_vocab'.
+		do
+		end
+
+	vocabularies (limit: NATURAL_32; offset: NATURAL_32): LIST [CMS_VOCABULARY]
+			-- List of vocabularies ordered by weight from offset to offset + limit.
+		do
+			create {ARRAYED_LIST [CMS_VOCABULARY]} Result.make (0)
+		end
+
+	vocabulary (a_id: INTEGER): detachable CMS_VOCABULARY
+			-- Vocabulary by id `a_id'.
+		do
+		end
+
+	terms_count: INTEGER_64
+			-- Number of terms.
+		do
+		end
+
+	term_by_id (tid: INTEGER): detachable CMS_TERM
+			-- Term associated with id `tid'.
+		do
+		end
+
+	terms (a_vocab: CMS_VOCABULARY; limit: NATURAL_32; offset: NATURAL_32): LIST [CMS_TERM]
+			-- List of terms from vocabulary `a_vocab' ordered by weight from offset to offset + limit.
+		do
+			create {ARRAYED_LIST [CMS_TERM]} Result.make (0)
+		end
+
+end