1 files changed, 26 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/CompositeAreaValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/CompositeAreaValidator.xtend
new file mode 100644
index 0000000..03a9d5b
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/CompositeAreaValidator.xtend
@@ -0,0 +1,26 @@
+package rba.tool.editor.validation.validators
+
+import org.eclipse.xtext.validation.Check
+import org.eclipse.xtext.validation.EValidatorRegistrar
+import rba.tool.editor.messages.Messages
+import rba.tool.editor.validation.AbstractRBAModelValidator
+import rba.view.CompositeArea
+import rba.view.RBAViewPackage
+
+class CompositeAreaValidator extends AbstractRBAModelValidator {
+
+	private String COMPOSITE_AREA_CHECK = Messages.COMPOSITE_AREA_CHECK;
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkCompositeArea(CompositeArea compositeArea) {
+		if (compositeArea.layout === null) {
+			error(String.format(COMPOSITE_AREA_CHECK, compositeArea.name),
+				RBAViewPackage.Literals.COMPOSITE_AREA__LAYOUT);
+			return;
+		}
+	}
+}