1 files changed, 64 insertions, 0 deletions
diff --git a/rba.tool.core/src/rba/tool/core/sort/GreaterThanOperatorEvaluator.java b/rba.tool.core/src/rba/tool/core/sort/GreaterThanOperatorEvaluator.java
new file mode 100644
index 0000000..686fa54
--- /dev/null
+++ b/rba.tool.core/src/rba/tool/core/sort/GreaterThanOperatorEvaluator.java
@@ -0,0 +1,64 @@
+package rba.tool.core.sort;
+
+import org.eclipse.emf.common.util.EList;
+
+import rba.core.Expression;
+import rba.core.GreaterThanOperator;
+import rba.core.LetStatement;
+import rba.core.ObjectReference;
+import rba.core.RuleObject;
+import rba.core.ThatOfOperator;
+import rba.core.ValueExpression;
+
+public class GreaterThanOperatorEvaluator<T extends RuleObject> extends ComparisonOperatorEvaluator<T> implements GreaterThanOperator {
+
+    protected GreaterThanOperatorEvaluator(GreaterThanOperator o) {
+        super(o);
+    }
+
+    @Override
+    public boolean evaluate(ValueSortedList<T> list) {
+        Expression operand = operator.getOperand().get(0);
+        if (operand instanceof ObjectReference) {
+            @SuppressWarnings("unchecked")
+            T object = (T) ((ObjectReference) operand).getRefObject();
+            return (list.getGroupIndexOf(subject) > list.getGroupIndexOf(object));
+        }
+
+        return false;
+    }
+
+    @Override
+    public int suggestIndex(ValueSortedList<T> list) {
+        Expression operand = operator.getOperand().get(0);
+        if (operand instanceof ThatOfOperator) {
+            Expression target = ((ThatOfOperator) operand).getOperand().get(0);
+
+            if (target instanceof ObjectReference) {
+                @SuppressWarnings("unchecked")
+                T object = (T) ((ObjectReference) target).getRefObject();
+                if (list.getGroupIndexOf(subject) > list.getGroupIndexOf(object)) {
+                    return -1;
+                } else {
+                    return list.getGroupIndexOf(object) + 1;
+                }
+            }
+
+        } else if (operand instanceof ValueExpression) {
+            int i = ((ValueExpression) operand).getExpressionValue();
+            if (list.getGroupIndexOf(subject) > i) {
+                return -1;
+            } else {
+                return i + 1;
+            }
+        }
+
+        throw new RuntimeException("Unsupported expression [" + operator.getExpression() + "]");
+    }
+
+    @Override
+    public EList<LetStatement> getLetStatements() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+}