From 7103accabb1b2aa0690bd1a0667f182f501a075a Mon Sep 17 00:00:00 2001
From: Geoffrey De Smet <gds.geoffrey.de.smet@gmail.com>
Date: Fri, 4 Nov 2016 20:13:20 +0100
Subject: [PATCH] NQueensSolutionCloner + remove CloneLedger

---
 .../domain/solution/cloner/CloneLedger.java   | 23 ---------
 .../optional/NQueensSolutionCloner.java       | 49 +++++++++++++++++++
 2 files changed, 49 insertions(+), 23 deletions(-)
 delete mode 100644 optaplanner-core/src/main/java/org/optaplanner/core/api/domain/solution/cloner/CloneLedger.java
 create mode 100644 optaplanner-examples/src/main/java/org/optaplanner/examples/nqueens/optional/NQueensSolutionCloner.java

diff --git a/optaplanner-core/src/main/java/org/optaplanner/core/api/domain/solution/cloner/CloneLedger.java b/optaplanner-core/src/main/java/org/optaplanner/core/api/domain/solution/cloner/CloneLedger.java
deleted file mode 100644
index bcbfd84e73..0000000000
--- a/optaplanner-core/src/main/java/org/optaplanner/core/api/domain/solution/cloner/CloneLedger.java
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2016 Red Hat, Inc. and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.optaplanner.core.api.domain.solution.cloner;
-
-public interface CloneLedger {
-
-    <E> void registerClone(E original, E clone);
-
-}
diff --git a/optaplanner-examples/src/main/java/org/optaplanner/examples/nqueens/optional/NQueensSolutionCloner.java b/optaplanner-examples/src/main/java/org/optaplanner/examples/nqueens/optional/NQueensSolutionCloner.java
new file mode 100644
index 0000000000..03e8bf49d4
--- /dev/null
+++ b/optaplanner-examples/src/main/java/org/optaplanner/examples/nqueens/optional/NQueensSolutionCloner.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016 Red Hat, Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.optaplanner.examples.nqueens.optional;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.optaplanner.core.api.domain.solution.cloner.SolutionCloner;
+import org.optaplanner.examples.nqueens.domain.NQueens;
+import org.optaplanner.examples.nqueens.domain.Queen;
+
+public class NQueensSolutionCloner implements SolutionCloner<NQueens> {
+
+    @Override
+    public NQueens cloneSolution(NQueens original) {
+        NQueens clone = new NQueens();
+        clone.setId(original.getId());
+        clone.setN(original.getN());
+        clone.setColumnList(original.getColumnList());
+        clone.setRowList(original.getRowList());
+        List<Queen> queenList = original.getQueenList();
+        List<Queen> clonedQueenList = new ArrayList<Queen>(queenList.size());
+        for (Queen originalQueen : queenList) {
+            Queen cloneQueen = new Queen();
+            cloneQueen.setId(originalQueen.getId());
+            cloneQueen.setColumn(originalQueen.getColumn());
+            cloneQueen.setRow(originalQueen.getRow());
+            clonedQueenList.add(cloneQueen);
+        }
+        clone.setQueenList(clonedQueenList);
+        clone.setScore(original.getScore());
+        return clone;
+    }
+
+}