lib/pione/global/system-variable.rb in pione-0.3.0 vs lib/pione/global/system-variable.rb in pione-0.3.1

@@ -3,37 +3,54 @@
     #
     # synchronization
     #
 
     # This is global lock for PIONE system.
-    define_internal_item(:monitor, Monitor.new)
+    define_internal_item(:monitor) do |item|
+      item.desc = "global lock for PIONE system"
+      item.init = Monitor.new
+    end
 
     #
     # PIONE's process model
     #
 
     # This is the command object of this process.
-    define_internal_item(:command)
+    define_internal_item(:command) do |item|
+      item.desc = "command object of this process"
+    end
 
     # This is the front server of this process.
-    define_internal_item(:front)
+    define_internal_item(:front) do |item|
+      item.desc = "front object of this process"
+    end
 
     # This process exits with this status.
-    define_internal_item(:exit_status, true)
+    define_internal_item(:exit_status) do |item|
+      item.desc = "exit status of this process"
+      item.init = true
+    end
 
     #
     # user interface
     #
 
-    define_external_item(:color_enabled, true)
+    define_external_item(:color_enabled) do |item|
+      item.desc = "availability of color mode"
+      item.init = true
+    end
 
     #
     # misc
     #
 
-    define_external_item(:features, "*")
+    define_external_item(:features) do |item|
+      item.desc = "string of features for this system"
+      item.init = "*"
+    end
 
-    define_internal_item(:expressional_features) {
-      Util.parse_features(Global.features)
-    }
+    define_computed_item(:expressional_features, [:features]) do |item|
+      item.desc = "expression of features for this system"
+      item.define_updater {Util.parse_features(Global.features)}
+    end
   end
 end