1 files changed, 55 insertions, 0 deletions
diff --git a/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/validation/FormalExpressionConstraint.java b/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/validation/FormalExpressionConstraint.java
new file mode 100644
index 00000000..c07db5d0
--- /dev/null
+++ b/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/validation/FormalExpressionConstraint.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2011, 2012 Red Hat, Inc. 
+ * All rights reserved. 
+ * This program is 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: 
+ * Red Hat, Inc. - initial API and implementation 
+ *******************************************************************************/
+package org.eclipse.bpmn2.modeler.core.validation;
+
+import org.eclipse.bpmn2.Bpmn2Package;
+import org.eclipse.bpmn2.FormalExpression;
+import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.validation.AbstractModelConstraint;
+import org.eclipse.emf.validation.EMFEventType;
+import org.eclipse.emf.validation.IValidationContext;
+
+public class FormalExpressionConstraint extends
+		AbstractModelConstraint {
+
+	public FormalExpressionConstraint() {
+		// TODO Auto-generated constructor stub
+	}
+
+	@Override
+	public IStatus validate(IValidationContext ctx) {
+
+		EObject eObj = ctx.getTarget();
+		EMFEventType eType = ctx.getEventType();
+		// In the case of batch mode.
+		if (eType == EMFEventType.NULL) {						
+			if(eObj instanceof FormalExpression){
+				FormalExpression formalExpression = (FormalExpression) eObj;
+				boolean error = false;
+//				if(formalExpression.getLanguage() == null || formalExpression.getLanguage().length() == 0){
+//					ctx.addResult(Bpmn2Package.eINSTANCE.getFormalExpression_Language());
+//					error = true;
+//				}
+				String body = ModelUtil.getExpressionBody(formalExpression);
+				if(body == null || body.isEmpty()){
+					ctx.addResult(Bpmn2Package.eINSTANCE.getFormalExpression_Body());
+					error = true;
+				}
+				if (error)
+					return ctx.createFailureStatus(new Object[] {eObj.eClass().getName()});		
+			}
+		} 
+		return ctx.createSuccessStatus();
+	}
+
+}