From c1f185fd8fc2c3dfc123d9271726c588963c7c01 Mon Sep 17 00:00:00 2001
From: Kristóf Marussy <kris7topher@gmail.com>
Date: Mon, 8 Apr 2019 00:58:00 +0200
Subject: Objective POC implementation

---
 .../reasoner/optimization/ObjectiveKind.java       | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Solvers/VIATRA-Solver/hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner/src/hu/bme/mit/inf/dslreasoner/viatrasolver/reasoner/optimization/ObjectiveKind.java

(limited to 'Solvers/VIATRA-Solver/hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner/src/hu/bme/mit/inf/dslreasoner/viatrasolver/reasoner/optimization/ObjectiveKind.java')

diff --git a/Solvers/VIATRA-Solver/hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner/src/hu/bme/mit/inf/dslreasoner/viatrasolver/reasoner/optimization/ObjectiveKind.java b/Solvers/VIATRA-Solver/hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner/src/hu/bme/mit/inf/dslreasoner/viatrasolver/reasoner/optimization/ObjectiveKind.java
new file mode 100644
index 00000000..f65428fe
--- /dev/null
+++ b/Solvers/VIATRA-Solver/hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner/src/hu/bme/mit/inf/dslreasoner/viatrasolver/reasoner/optimization/ObjectiveKind.java
@@ -0,0 +1,36 @@
+package hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.optimization;
+
+import java.util.Comparator;
+
+import org.eclipse.viatra.dse.objectives.Comparators;
+
+public enum ObjectiveKind {
+	LOWER_IS_BETTER {
+
+		@Override
+		public Comparator<Double> getComparator() {
+			return Comparators.LOWER_IS_BETTER;
+		}
+
+	},
+	HIGHER_IS_BETTER {
+
+		@Override
+		public Comparator<Double> getComparator() {
+			return Comparators.HIGHER_IS_BETTER;
+		}
+
+	};
+
+	public abstract Comparator<Double> getComparator();
+
+	public static ObjectiveKind fromComparator(Comparator<Double> comparator) {
+		if (Comparators.LOWER_IS_BETTER.equals(comparator)) {
+			return ObjectiveKind.LOWER_IS_BETTER;
+		} else if (Comparators.HIGHER_IS_BETTER.equals(comparator)) {
+			return ObjectiveKind.HIGHER_IS_BETTER;
+		} else {
+			throw new IllegalStateException("Only LOWER_IS_BETTER and HIGHER_IS_BETTER comparators are supported.");
+		}
+	}
+}
-- 
cgit v1.2.3-54-g00ecf