1 files changed, 36 insertions, 0 deletions
diff --git a/plugins/infra/emf/expressions/org.eclipse.papyrus.infra.emf.expressions/src/org/eclipse/papyrus/infra/emf/expressions/eobjectbooleanexpressions/custom/CustomNotExpression.java b/plugins/infra/emf/expressions/org.eclipse.papyrus.infra.emf.expressions/src/org/eclipse/papyrus/infra/emf/expressions/eobjectbooleanexpressions/custom/CustomNotExpression.java
new file mode 100755
index 00000000000..17c43132d72
--- /dev/null
+++ b/plugins/infra/emf/expressions/org.eclipse.papyrus.infra.emf.expressions/src/org/eclipse/papyrus/infra/emf/expressions/eobjectbooleanexpressions/custom/CustomNotExpression.java
@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2017 CEA LIST.
+ * 
+ * 
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ * 	Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
+ */
+package org.eclipse.papyrus.infra.emf.expressions.eobjectbooleanexpressions.custom;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.papyrus.infra.emf.expressions.booleanexpressionspackage.impl.NotExpressionImpl;
+
+
+public class CustomNotExpression extends NotExpressionImpl{
+	
+	@Override
+	public Boolean evaluate(EObject context) {
+		//1. we evaluate the own expression first
+		if(null!=ownedExpression) {
+			return !ownedExpression.evaluate(context);
+		}
+		
+		//2. we evaluate the referenced expression
+		if(null!=referencedExpression) {
+			return !referencedExpression.evaluate(context);
+		}
+		
+		//3. we return the default value
+		return Boolean.FALSE;
+	}
+}
+\ No newline at end of file