X-Git-Url: https://ruin.nu/git/?p=germs.git;a=blobdiff_plain;f=src%2Fsortaction.h;h=d1a3f7bca68e3fe5a11c94631f117123c10295fe;hp=a71a533cf70ec981f10d32527053e58cdf0a609b;hb=3fff88637ec7e806f19e613051f31ca5178d2cf5;hpb=3401199b1ce268dd6465f09abf6264592b989140

diff --git a/src/sortaction.h b/src/sortaction.h
index a71a533..d1a3f7b 100644
--- a/src/sortaction.h
+++ b/src/sortaction.h
@@ -21,30 +21,42 @@
 #ifndef __SORTACTION_H__
 #define __SORTACTION_H__
 
+#include <tr1/memory>
 class GeneOrder;
 /**
- * Abstraction of a sort action
+ * Abstraction of a sort action, all child actions has to be immutable.
  *
  * \author Michael Andreen
  */
 class SortAction{
 	public:
+		typedef std::tr1::shared_ptr<SortAction> ActionPointer;
 
+		/**
+		 * Creates a new sort action, given a specified action.
+		 * SortAction promises to remove the given action.
+		 */
+		SortAction(SortAction* sa): _action(sa){
+		}
+		
 		virtual ~SortAction(){};
 
 		/**
 		 * Applies the action on the GeneOrder and returning it.
 		 */
 		virtual GeneOrder& operator()(GeneOrder& go) const{
-			return go;
+			return (*_action)(go);
 		}
 
 		/**
 		 * Compares sort actions.
 		 */
 		virtual bool operator==(const SortAction& sa) const{
-			return false;
+			return (*_action) == (sa._action.get() == 0 ? sa : *sa._action);
 		}
+	private:
+		ActionPointer _action;
+
 };
 
 #endif