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diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java
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+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.workflow;
+
+import org.eclipse.swt.widgets.Composite;
+
+/**
+ * 
+ */
+public interface StateMachine {
+	/**
+	 * Get the ConfigProvider
+	 * @return the ConfigProvider
+	 */
+	public ConfigProvider getConfigProvider();
+	
+	/**
+	 * Get the container Composite
+	 * @return the container Composite
+	 */
+	public Composite getComposite();
+
+	//public void display(Composite composite)
+	/**
+	 * Get the Status
+	 * @return the Status
+	 */
+	public Status getStatus();
+
+	/**
+	 * Update state machine
+	 * Calls the next state.
+	 */
+	public void update();
+
+	/**
+	 * Exit state machine execution
+	 */
+	public void exit();
+}