git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@177 331e1502-861f-0410-8da2-ba01fb791d7f

branches/paradiseo-moeo-1.0/src/moeoHybridLS.h

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// moeoHybridLS.h
+// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
+/*
+    This library...
+
+    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
+ */
+//-----------------------------------------------------------------------------
+
+#ifndef MOEOHYBRIDLS_H_
+#define MOEOHYBRIDLS_H_
+
+#include <eoContinue.h>
+#include <eoPop.h>
+#include <eoUpdater.h>
+#include <eoSelect.h>
+#include <moeoArchive.h>
+#include <moeoLS.h>
+
+/**
+ * This class allows to apply a multi-objective local search to a number of selected individuals contained in the archive  
+ * at every generation until a stopping criteria is verified.
+ */
+template < class MOEOT >
+class moeoHybridLS : public eoUpdater
+{
+public:
+
+	/**
+	 * Ctor
+	 * @param _term stopping criteria
+	 * @param _select selector
+	 * @param _ls a multi-objective local search
+	 * @param _arch the archive
+	 */
+	eoHybridLS (eoContinue < MOEOT > & _term, eoSelect < MOEOT > & _select, moeoLS < MOEOT > & _ls, moeoArchive < MOEOT > & _arch) : term(_term), select(_select), ls(_ls), arch(_arch)
+	{}
+
+	/**
+	 * Applies the multi-objective local search to selected individuals contained in the archive if the stopping criteria is not verified 
+	 */
+	void operator () ()
+	{
+		if (! cont (arch))
+		{
+			// selection of solutions
+			eoPop < MOEOT > selectedSolutions;
+			select(arch, selectedSolutions);
+			// apply the local search to every selected solution
+			for (unsigned i=0; i<selectedSolutions.size(); i ++)
+			{
+				ls(selectedSolutions[i], arch);
+			}
+		}
+	}
+
+
+private:
+
+	/** stopping criteria*/
+	eoContinue < MOEOT > & term;
+	/** selector */
+	eoSelect < MOEOT > & select;
+	/** multi-objective local search */
+	moeoLS < MOEOT > & ls;
+	/** archive */
+	moeoArchive < MOEOT > & arch;
+
+};
+
+#endif /*MOEOHYBRIDLS_H_*/