Added imports to SGraph model

plugins/org.yakindu.sct.model.sgraph/model/emf/sgraph.ecore

@@ -29,7 +29,10 @@
   <eClassifiers xsi:type="ecore:EClass" name="Choice" eSuperTypes="#//Pseudostate">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="kind" eType="#//ChoiceKind"/>
   </eClassifiers>
-  <eClassifiers xsi:type="ecore:EClass" name="Statechart" eSuperTypes="#//SpecificationElement #//ReactiveElement #//ScopedElement #//CompositeElement ../../../org.yakindu.base.types/model/base.ecore#//NamedElement ../../../org.yakindu.base.types/model/base.ecore#//DocumentedElement"/>
+  <eClassifiers xsi:type="ecore:EClass" name="Statechart" eSuperTypes="#//SpecificationElement #//ReactiveElement #//ScopedElement #//CompositeElement ../../../org.yakindu.base.types/model/base.ecore#//NamedElement ../../../org.yakindu.base.types/model/base.ecore#//DocumentedElement">
+    <eStructuralFeatures xsi:type="ecore:EReference" name="imports" upperBound="-1"
+        eType="#//Import" containment="true"/>
+  </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Entry" eSuperTypes="#//Pseudostate">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="kind" eType="#//EntryKind"/>
   </eClassifiers>
@@ -99,4 +102,7 @@
     <eStructuralFeatures xsi:type="ecore:EReference" name="regions" upperBound="-1"
         eType="#//Region" containment="true" eOpposite="#//Region/composite"/>
   </eClassifiers>
+  <eClassifiers xsi:type="ecore:EClass" name="Import">
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="importedNamespace" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+  </eClassifiers>
 </ecore:EPackage>

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/Import.java

@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2011 committers of YAKINDU and others.
+ * 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:
+ * committers of YAKINDU - initial API and implementation
+ * 
+ */
+package org.yakindu.sct.model.sgraph;
+
+import org.eclipse.emf.ecore.EObject;
+
+/**
+ * <!-- begin-user-doc -->
+ * A representation of the model object '<em><b>Import</b></em>'.
+ * <!-- end-user-doc -->
+ *
+ * <p>
+ * The following features are supported:
+ * <ul>
+ *   <li>{@link org.yakindu.sct.model.sgraph.Import#getImportedNamespace <em>Imported Namespace</em>}</li>
+ * </ul>
+ * </p>
+ *
+ * @see org.yakindu.sct.model.sgraph.SGraphPackage#getImport()
+ * @model
+ * @generated
+ */
+public interface Import extends EObject {
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	String copyright = "Copyright (c) 2011 committers of YAKINDU and others.\r\nAll rights reserved. This program and the accompanying materials\r\nare made available under the terms of the Eclipse Public License v1.0\r\nwhich accompanies this distribution, and is available at\r\nhttp://www.eclipse.org/legal/epl-v10.html\r\nContributors:\r\ncommitters of YAKINDU - initial API and implementation\r\n";
+
+	/**
+	 * Returns the value of the '<em><b>Imported Namespace</b></em>' attribute.
+	 * <!-- begin-user-doc -->
+	 * <p>
+	 * If the meaning of the '<em>Imported Namespace</em>' attribute list isn't clear,
+	 * there really should be more of a description here...
+	 * </p>
+	 * <!-- end-user-doc -->
+	 * @return the value of the '<em>Imported Namespace</em>' attribute.
+	 * @see #setImportedNamespace(String)
+	 * @see org.yakindu.sct.model.sgraph.SGraphPackage#getImport_ImportedNamespace()
+	 * @model
+	 * @generated
+	 */
+	String getImportedNamespace();
+
+	/**
+	 * Sets the value of the '{@link org.yakindu.sct.model.sgraph.Import#getImportedNamespace <em>Imported Namespace</em>}' attribute.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @param value the new value of the '<em>Imported Namespace</em>' attribute.
+	 * @see #getImportedNamespace()
+	 * @generated
+	 */
+	void setImportedNamespace(String value);
+
+} // Import

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/SGraphFactory.java

@@ -144,6 +144,15 @@ public interface SGraphFactory extends EFactory {
 	 */
 	RegularState createRegularState();
 
+	/**
+	 * Returns a new object of class '<em>Import</em>'.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @return a new object of class '<em>Import</em>'.
+	 * @generated
+	 */
+	Import createImport();
+
 	/**
 	 * Returns the package supported by this factory.
 	 * <!-- begin-user-doc -->

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/SGraphPackage.java

@@ -688,6 +688,15 @@ public interface SGraphPackage extends EPackage {
 	 */
 	int STATECHART__DOCUMENTATION = SPECIFICATION_ELEMENT_FEATURE_COUNT + 6;
 
+	/**
+	 * The feature id for the '<em><b>Imports</b></em>' containment reference list.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 * @ordered
+	 */
+	int STATECHART__IMPORTS = SPECIFICATION_ELEMENT_FEATURE_COUNT + 7;
+
 	/**
 	 * The number of structural features of the '<em>Statechart</em>' class.
 	 * <!-- begin-user-doc -->
@@ -695,7 +704,7 @@ public interface SGraphPackage extends EPackage {
 	 * @generated
 	 * @ordered
 	 */
-	int STATECHART_FEATURE_COUNT = SPECIFICATION_ELEMENT_FEATURE_COUNT + 7;
+	int STATECHART_FEATURE_COUNT = SPECIFICATION_ELEMENT_FEATURE_COUNT + 8;
 
 	/**
 	 * The meta object id for the '{@link org.yakindu.sct.model.sgraph.impl.EntryImpl <em>Entry</em>}' class.
@@ -1293,6 +1302,34 @@ public interface SGraphPackage extends EPackage {
 	 */
 	int COMPOSITE_ELEMENT_FEATURE_COUNT = 1;
 
+	/**
+	 * The meta object id for the '{@link org.yakindu.sct.model.sgraph.impl.ImportImpl <em>Import</em>}' class.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @see org.yakindu.sct.model.sgraph.impl.ImportImpl
+	 * @see org.yakindu.sct.model.sgraph.impl.SGraphPackageImpl#getImport()
+	 * @generated
+	 */
+	int IMPORT = 24;
+
+	/**
+	 * The feature id for the '<em><b>Imported Namespace</b></em>' attribute.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 * @ordered
+	 */
+	int IMPORT__IMPORTED_NAMESPACE = 0;
+
+	/**
+	 * The number of structural features of the '<em>Import</em>' class.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 * @ordered
+	 */
+	int IMPORT_FEATURE_COUNT = 1;
+
 	/**
 	 * The meta object id for the '{@link org.yakindu.sct.model.sgraph.EntryKind <em>Entry Kind</em>}' enum.
 	 * <!-- begin-user-doc -->
@@ -1301,7 +1338,7 @@ public interface SGraphPackage extends EPackage {
 	 * @see org.yakindu.sct.model.sgraph.impl.SGraphPackageImpl#getEntryKind()
 	 * @generated
 	 */
-	int ENTRY_KIND = 24;
+	int ENTRY_KIND = 25;
 
 
 	/**
@@ -1312,7 +1349,7 @@ public interface SGraphPackage extends EPackage {
 	 * @see org.yakindu.sct.model.sgraph.impl.SGraphPackageImpl#getChoiceKind()
 	 * @generated
 	 */
-	int CHOICE_KIND = 25;
+	int CHOICE_KIND = 26;
 
 
 	/**
@@ -1560,6 +1597,27 @@ public interface SGraphPackage extends EPackage {
 	 */
 	EReference getCompositeElement_Regions();
 
+	/**
+	 * Returns the meta object for class '{@link org.yakindu.sct.model.sgraph.Import <em>Import</em>}'.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @return the meta object for class '<em>Import</em>'.
+	 * @see org.yakindu.sct.model.sgraph.Import
+	 * @generated
+	 */
+	EClass getImport();
+
+	/**
+	 * Returns the meta object for the attribute '{@link org.yakindu.sct.model.sgraph.Import#getImportedNamespace <em>Imported Namespace</em>}'.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @return the meta object for the attribute '<em>Imported Namespace</em>'.
+	 * @see org.yakindu.sct.model.sgraph.Import#getImportedNamespace()
+	 * @see #getImport()
+	 * @generated
+	 */
+	EAttribute getImport_ImportedNamespace();
+
 	/**
 	 * Returns the meta object for class '{@link org.yakindu.sct.model.sgraph.Variable <em>Variable</em>}'.
 	 * <!-- begin-user-doc -->
@@ -1611,6 +1669,17 @@ public interface SGraphPackage extends EPackage {
 	 */
 	EClass getStatechart();
 
+	/**
+	 * Returns the meta object for the containment reference list '{@link org.yakindu.sct.model.sgraph.Statechart#getImports <em>Imports</em>}'.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @return the meta object for the containment reference list '<em>Imports</em>'.
+	 * @see org.yakindu.sct.model.sgraph.Statechart#getImports()
+	 * @see #getStatechart()
+	 * @generated
+	 */
+	EReference getStatechart_Imports();
+
 	/**
 	 * Returns the meta object for class '{@link org.yakindu.sct.model.sgraph.Entry <em>Entry</em>}'.
 	 * <!-- begin-user-doc -->
@@ -2105,6 +2174,24 @@ public interface SGraphPackage extends EPackage {
 		 */
 		EReference COMPOSITE_ELEMENT__REGIONS = eINSTANCE.getCompositeElement_Regions();
 
+		/**
+		 * The meta object literal for the '{@link org.yakindu.sct.model.sgraph.impl.ImportImpl <em>Import</em>}' class.
+		 * <!-- begin-user-doc -->
+		 * <!-- end-user-doc -->
+		 * @see org.yakindu.sct.model.sgraph.impl.ImportImpl
+		 * @see org.yakindu.sct.model.sgraph.impl.SGraphPackageImpl#getImport()
+		 * @generated
+		 */
+		EClass IMPORT = eINSTANCE.getImport();
+
+		/**
+		 * The meta object literal for the '<em><b>Imported Namespace</b></em>' attribute feature.
+		 * <!-- begin-user-doc -->
+		 * <!-- end-user-doc -->
+		 * @generated
+		 */
+		EAttribute IMPORT__IMPORTED_NAMESPACE = eINSTANCE.getImport_ImportedNamespace();
+
 		/**
 		 * The meta object literal for the '{@link org.yakindu.sct.model.sgraph.impl.VariableImpl <em>Variable</em>}' class.
 		 * <!-- begin-user-doc -->
@@ -2153,6 +2240,14 @@ public interface SGraphPackage extends EPackage {
 		 */
 		EClass STATECHART = eINSTANCE.getStatechart();
 
+		/**
+		 * The meta object literal for the '<em><b>Imports</b></em>' containment reference list feature.
+		 * <!-- begin-user-doc -->
+		 * <!-- end-user-doc -->
+		 * @generated
+		 */
+		EReference STATECHART__IMPORTS = eINSTANCE.getStatechart_Imports();
+
 		/**
 		 * The meta object literal for the '{@link org.yakindu.sct.model.sgraph.impl.EntryImpl <em>Entry</em>}' class.
 		 * <!-- begin-user-doc -->

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/SGraphRuntimeModule.java

@@ -7,9 +7,7 @@ import org.eclipse.xtext.resource.impl.ResourceDescriptionsProvider;
 import org.eclipse.xtext.resource.impl.ResourceSetBasedResourceDescriptions;
 import org.eclipse.xtext.scoping.impl.DefaultGlobalScopeProvider;
 import org.eclipse.xtext.service.AbstractGenericModule;
-import org.eclipse.xtext.service.SingletonBinding;
 import org.yakindu.sct.model.sgraph.naming.SGraphNameProvider;
-import org.yakindu.sct.model.sgraph.validation.SGraphJavaValidator;
 
 import com.google.inject.Binder;
 import com.google.inject.name.Names;

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/Statechart.java

@@ -10,6 +10,7 @@
  */
 package org.yakindu.sct.model.sgraph;
 
+import org.eclipse.emf.common.util.EList;
 import org.yakindu.base.base.DocumentedElement;
 import org.yakindu.base.base.NamedElement;
 
@@ -19,6 +20,12 @@ import org.yakindu.base.base.NamedElement;
  * A representation of the model object '<em><b>Statechart</b></em>'.
  * <!-- end-user-doc -->
  *
+ * <p>
+ * The following features are supported:
+ * <ul>
+ *   <li>{@link org.yakindu.sct.model.sgraph.Statechart#getImports <em>Imports</em>}</li>
+ * </ul>
+ * </p>
  *
  * @see org.yakindu.sct.model.sgraph.SGraphPackage#getStatechart()
  * @model
@@ -32,4 +39,20 @@ public interface Statechart extends SpecificationElement, ReactiveElement, Scope
 	 */
 	String copyright = "Copyright (c) 2011 committers of YAKINDU and others.\r\nAll rights reserved. This program and the accompanying materials\r\nare made available under the terms of the Eclipse Public License v1.0\r\nwhich accompanies this distribution, and is available at\r\nhttp://www.eclipse.org/legal/epl-v10.html\r\nContributors:\r\ncommitters of YAKINDU - initial API and implementation\r\n";
 
+	/**
+	 * Returns the value of the '<em><b>Imports</b></em>' containment reference list.
+	 * The list contents are of type {@link org.yakindu.sct.model.sgraph.Import}.
+	 * <!-- begin-user-doc -->
+	 * <p>
+	 * If the meaning of the '<em>Imports</em>' containment reference list isn't clear,
+	 * there really should be more of a description here...
+	 * </p>
+	 * <!-- end-user-doc -->
+	 * @return the value of the '<em>Imports</em>' containment reference list.
+	 * @see org.yakindu.sct.model.sgraph.SGraphPackage#getStatechart_Imports()
+	 * @model containment="true" resolveProxies="true"
+	 * @generated
+	 */
+	EList<Import> getImports();
+
 } // Statechart

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/impl/ImportImpl.java

@@ -0,0 +1,175 @@
+/**
+ * Copyright (c) 2011 committers of YAKINDU and others.
+ * 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:
+ * committers of YAKINDU - initial API and implementation
+ * 
+ */
+package org.yakindu.sct.model.sgraph.impl;
+
+import org.eclipse.emf.common.notify.Notification;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.impl.ENotificationImpl;
+import org.eclipse.emf.ecore.impl.EObjectImpl;
+import org.yakindu.sct.model.sgraph.Import;
+import org.yakindu.sct.model.sgraph.SGraphPackage;
+
+/**
+ * <!-- begin-user-doc -->
+ * An implementation of the model object '<em><b>Import</b></em>'.
+ * <!-- end-user-doc -->
+ * <p>
+ * The following features are implemented:
+ * <ul>
+ *   <li>{@link org.yakindu.sct.model.sgraph.impl.ImportImpl#getImportedNamespace <em>Imported Namespace</em>}</li>
+ * </ul>
+ * </p>
+ *
+ * @generated
+ */
+public class ImportImpl extends EObjectImpl implements Import {
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public static final String copyright = "Copyright (c) 2011 committers of YAKINDU and others.\r\nAll rights reserved. This program and the accompanying materials\r\nare made available under the terms of the Eclipse Public License v1.0\r\nwhich accompanies this distribution, and is available at\r\nhttp://www.eclipse.org/legal/epl-v10.html\r\nContributors:\r\ncommitters of YAKINDU - initial API and implementation\r\n";
+
+	/**
+	 * The default value of the '{@link #getImportedNamespace() <em>Imported Namespace</em>}' attribute.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @see #getImportedNamespace()
+	 * @generated
+	 * @ordered
+	 */
+	protected static final String IMPORTED_NAMESPACE_EDEFAULT = null;
+
+	/**
+	 * The cached value of the '{@link #getImportedNamespace() <em>Imported Namespace</em>}' attribute.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @see #getImportedNamespace()
+	 * @generated
+	 * @ordered
+	 */
+	protected String importedNamespace = IMPORTED_NAMESPACE_EDEFAULT;
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	protected ImportImpl() {
+		super();
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	protected EClass eStaticClass() {
+		return SGraphPackage.Literals.IMPORT;
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public String getImportedNamespace() {
+		return importedNamespace;
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public void setImportedNamespace(String newImportedNamespace) {
+		String oldImportedNamespace = importedNamespace;
+		importedNamespace = newImportedNamespace;
+		if (eNotificationRequired())
+			eNotify(new ENotificationImpl(this, Notification.SET, SGraphPackage.IMPORT__IMPORTED_NAMESPACE, oldImportedNamespace, importedNamespace));
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	public Object eGet(int featureID, boolean resolve, boolean coreType) {
+		switch (featureID) {
+			case SGraphPackage.IMPORT__IMPORTED_NAMESPACE:
+				return getImportedNamespace();
+		}
+		return super.eGet(featureID, resolve, coreType);
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	public void eSet(int featureID, Object newValue) {
+		switch (featureID) {
+			case SGraphPackage.IMPORT__IMPORTED_NAMESPACE:
+				setImportedNamespace((String)newValue);
+				return;
+		}
+		super.eSet(featureID, newValue);
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	public void eUnset(int featureID) {
+		switch (featureID) {
+			case SGraphPackage.IMPORT__IMPORTED_NAMESPACE:
+				setImportedNamespace(IMPORTED_NAMESPACE_EDEFAULT);
+				return;
+		}
+		super.eUnset(featureID);
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	public boolean eIsSet(int featureID) {
+		switch (featureID) {
+			case SGraphPackage.IMPORT__IMPORTED_NAMESPACE:
+				return IMPORTED_NAMESPACE_EDEFAULT == null ? importedNamespace != null : !IMPORTED_NAMESPACE_EDEFAULT.equals(importedNamespace);
+		}
+		return super.eIsSet(featureID);
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	@Override
+	public String toString() {
+		if (eIsProxy()) return super.toString();
+
+		StringBuffer result = new StringBuffer(super.toString());
+		result.append(" (importedNamespace: ");
+		result.append(importedNamespace);
+		result.append(')');
+		return result.toString();
+	}
+
+} //ImportImpl

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/impl/SGraphFactoryImpl.java

@@ -22,6 +22,7 @@ import org.yakindu.sct.model.sgraph.Entry;
 import org.yakindu.sct.model.sgraph.EntryKind;
 import org.yakindu.sct.model.sgraph.Exit;
 import org.yakindu.sct.model.sgraph.FinalState;
+import org.yakindu.sct.model.sgraph.Import;
 import org.yakindu.sct.model.sgraph.ReactionProperty;
 import org.yakindu.sct.model.sgraph.Region;
 import org.yakindu.sct.model.sgraph.RegularState;
@@ -96,6 +97,7 @@ public class SGraphFactoryImpl extends EFactoryImpl implements SGraphFactory {
 			case SGraphPackage.SYNCHRONIZATION: return createSynchronization();
 			case SGraphPackage.STATE: return createState();
 			case SGraphPackage.REGULAR_STATE: return createRegularState();
+			case SGraphPackage.IMPORT: return createImport();
 			default:
 				throw new IllegalArgumentException("The class '" + eClass.getName() + "' is not a valid classifier");
 		}
@@ -255,6 +257,16 @@ public class SGraphFactoryImpl extends EFactoryImpl implements SGraphFactory {
 		return regularState;
 	}
 
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public Import createImport() {
+		ImportImpl import_ = new ImportImpl();
+		return import_;
+	}
+
 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/impl/SGraphPackageImpl.java

@@ -27,6 +27,7 @@ import org.yakindu.sct.model.sgraph.EntryKind;
 import org.yakindu.sct.model.sgraph.Event;
 import org.yakindu.sct.model.sgraph.Exit;
 import org.yakindu.sct.model.sgraph.FinalState;
+import org.yakindu.sct.model.sgraph.Import;
 import org.yakindu.sct.model.sgraph.Pseudostate;
 import org.yakindu.sct.model.sgraph.Reaction;
 import org.yakindu.sct.model.sgraph.ReactionProperty;
@@ -116,6 +117,13 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 	 */
 	private EClass compositeElementEClass = null;
 
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	private EClass importEClass = null;
+
 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
@@ -513,6 +521,24 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		return (EReference)compositeElementEClass.getEStructuralFeatures().get(0);
 	}
 
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public EClass getImport() {
+		return importEClass;
+	}
+
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public EAttribute getImport_ImportedNamespace() {
+		return (EAttribute)importEClass.getEStructuralFeatures().get(0);
+	}
+
 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
@@ -558,6 +584,15 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		return statechartEClass;
 	}
 
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public EReference getStatechart_Imports() {
+		return (EReference)statechartEClass.getEStructuralFeatures().get(0);
+	}
+
 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
@@ -845,6 +880,7 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		createEAttribute(choiceEClass, CHOICE__KIND);
 
 		statechartEClass = createEClass(STATECHART);
+		createEReference(statechartEClass, STATECHART__IMPORTS);
 
 		entryEClass = createEClass(ENTRY);
 		createEAttribute(entryEClass, ENTRY__KIND);
@@ -896,6 +932,9 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		compositeElementEClass = createEClass(COMPOSITE_ELEMENT);
 		createEReference(compositeElementEClass, COMPOSITE_ELEMENT__REGIONS);
 
+		importEClass = createEClass(IMPORT);
+		createEAttribute(importEClass, IMPORT__IMPORTED_NAMESPACE);
+
 		// Create enums
 		entryKindEEnum = createEEnum(ENTRY_KIND);
 		choiceKindEEnum = createEEnum(CHOICE_KIND);
@@ -986,6 +1025,7 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		initEAttribute(getChoice_Kind(), this.getChoiceKind(), "kind", null, 0, 1, Choice.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
 
 		initEClass(statechartEClass, Statechart.class, "Statechart", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
+		initEReference(getStatechart_Imports(), this.getImport(), null, "imports", null, 0, -1, Statechart.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
 
 		initEClass(entryEClass, Entry.class, "Entry", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
 		initEAttribute(getEntry_Kind(), this.getEntryKind(), "kind", null, 0, 1, Entry.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
@@ -1037,6 +1077,9 @@ public class SGraphPackageImpl extends EPackageImpl implements SGraphPackage {
 		initEClass(compositeElementEClass, CompositeElement.class, "CompositeElement", IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
 		initEReference(getCompositeElement_Regions(), this.getRegion(), this.getRegion_Composite(), "regions", null, 0, -1, CompositeElement.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
 
+		initEClass(importEClass, Import.class, "Import", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
+		initEAttribute(getImport_ImportedNamespace(), ecorePackage.getEString(), "importedNamespace", null, 0, 1, Import.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
+
 		// Initialize enums and add enum literals
 		initEEnum(entryKindEEnum, EntryKind.class, "EntryKind");
 		addEEnumLiteral(entryKindEEnum, EntryKind.INITIAL);

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/impl/StatechartImpl.java

@@ -27,6 +27,7 @@ import org.yakindu.base.base.DocumentedElement;
 import org.yakindu.base.base.NamedElement;
 import org.yakindu.sct.model.sgraph.CompositeElement;
 import org.yakindu.sct.model.sgraph.Declaration;
+import org.yakindu.sct.model.sgraph.Import;
 import org.yakindu.sct.model.sgraph.Reaction;
 import org.yakindu.sct.model.sgraph.ReactiveElement;
 import org.yakindu.sct.model.sgraph.Region;
@@ -48,6 +49,7 @@ import org.yakindu.sct.model.sgraph.Statechart;
  *   <li>{@link org.yakindu.sct.model.sgraph.impl.StatechartImpl#getRegions <em>Regions</em>}</li>
  *   <li>{@link org.yakindu.sct.model.sgraph.impl.StatechartImpl#getName <em>Name</em>}</li>
  *   <li>{@link org.yakindu.sct.model.sgraph.impl.StatechartImpl#getDocumentation <em>Documentation</em>}</li>
+ *   <li>{@link org.yakindu.sct.model.sgraph.impl.StatechartImpl#getImports <em>Imports</em>}</li>
  * </ul>
  * </p>
  *
@@ -135,6 +137,16 @@ public class StatechartImpl extends SpecificationElementImpl implements
 	 */
 	protected String documentation = DOCUMENTATION_EDEFAULT;
 
+	/**
+	 * The cached value of the '{@link #getImports() <em>Imports</em>}' containment reference list.
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @see #getImports()
+	 * @generated
+	 * @ordered
+	 */
+	protected EList<Import> imports;
+
 	/**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
@@ -263,6 +275,18 @@ public class StatechartImpl extends SpecificationElementImpl implements
 			eNotify(new ENotificationImpl(this, Notification.SET, SGraphPackage.STATECHART__DOCUMENTATION, oldDocumentation, documentation));
 	}
 
+	/**
+	 * <!-- begin-user-doc -->
+	 * <!-- end-user-doc -->
+	 * @generated
+	 */
+	public EList<Import> getImports() {
+		if (imports == null) {
+			imports = new EObjectContainmentEList.Resolving<Import>(Import.class, this, SGraphPackage.STATECHART__IMPORTS);
+		}
+		return imports;
+	}
+
 	/**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
@@ -290,6 +314,8 @@ public class StatechartImpl extends SpecificationElementImpl implements
 				return ((InternalEList<?>)getScopes()).basicRemove(otherEnd, msgs);
 			case SGraphPackage.STATECHART__REGIONS:
 				return ((InternalEList<?>)getRegions()).basicRemove(otherEnd, msgs);
+			case SGraphPackage.STATECHART__IMPORTS:
+				return ((InternalEList<?>)getImports()).basicRemove(otherEnd, msgs);
 		}
 		return super.eInverseRemove(otherEnd, featureID, msgs);
 	}
@@ -315,6 +341,8 @@ public class StatechartImpl extends SpecificationElementImpl implements
 				return getName();
 			case SGraphPackage.STATECHART__DOCUMENTATION:
 				return getDocumentation();
+			case SGraphPackage.STATECHART__IMPORTS:
+				return getImports();
 		}
 		return super.eGet(featureID, resolve, coreType);
 	}
@@ -344,6 +372,10 @@ public class StatechartImpl extends SpecificationElementImpl implements
 			case SGraphPackage.STATECHART__DOCUMENTATION:
 				setDocumentation((String)newValue);
 				return;
+			case SGraphPackage.STATECHART__IMPORTS:
+				getImports().clear();
+				getImports().addAll((Collection<? extends Import>)newValue);
+				return;
 		}
 		super.eSet(featureID, newValue);
 	}
@@ -370,6 +402,9 @@ public class StatechartImpl extends SpecificationElementImpl implements
 			case SGraphPackage.STATECHART__DOCUMENTATION:
 				setDocumentation(DOCUMENTATION_EDEFAULT);
 				return;
+			case SGraphPackage.STATECHART__IMPORTS:
+				getImports().clear();
+				return;
 		}
 		super.eUnset(featureID);
 	}
@@ -395,6 +430,8 @@ public class StatechartImpl extends SpecificationElementImpl implements
 				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
 			case SGraphPackage.STATECHART__DOCUMENTATION:
 				return DOCUMENTATION_EDEFAULT == null ? documentation != null : !DOCUMENTATION_EDEFAULT.equals(documentation);
+			case SGraphPackage.STATECHART__IMPORTS:
+				return imports != null && !imports.isEmpty();
 		}
 		return super.eIsSet(featureID);
 	}

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/util/SGraphAdapterFactory.java

@@ -24,6 +24,7 @@ import org.yakindu.sct.model.sgraph.Entry;
 import org.yakindu.sct.model.sgraph.Event;
 import org.yakindu.sct.model.sgraph.Exit;
 import org.yakindu.sct.model.sgraph.FinalState;
+import org.yakindu.sct.model.sgraph.Import;
 import org.yakindu.sct.model.sgraph.Pseudostate;
 import org.yakindu.sct.model.sgraph.Reaction;
 import org.yakindu.sct.model.sgraph.ReactionProperty;
@@ -202,6 +203,10 @@ public class SGraphAdapterFactory extends AdapterFactoryImpl {
 				return createCompositeElementAdapter();
 			}
 			@Override
+			public Adapter caseImport(Import object) {
+				return createImportAdapter();
+			}
+			@Override
 			public Adapter caseNamedElement(NamedElement object) {
 				return createNamedElementAdapter();
 			}
@@ -369,6 +374,20 @@ public class SGraphAdapterFactory extends AdapterFactoryImpl {
 		return null;
 	}
 
+	/**
+	 * Creates a new adapter for an object of class '{@link org.yakindu.sct.model.sgraph.Import <em>Import</em>}'.
+	 * <!-- begin-user-doc -->
+	 * This default implementation returns null so that we can easily ignore cases;
+	 * it's useful to ignore a case when inheritance will catch all the cases anyway.
+	 * <!-- end-user-doc -->
+	 * @return the new adapter.
+	 * @see org.yakindu.sct.model.sgraph.Import
+	 * @generated
+	 */
+	public Adapter createImportAdapter() {
+		return null;
+	}
+
 	/**
 	 * Creates a new adapter for an object of class '{@link org.yakindu.sct.model.sgraph.Variable <em>Variable</em>}'.
 	 * <!-- begin-user-doc -->

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/util/SGraphSwitch.java

@@ -23,6 +23,7 @@ import org.yakindu.sct.model.sgraph.Entry;
 import org.yakindu.sct.model.sgraph.Event;
 import org.yakindu.sct.model.sgraph.Exit;
 import org.yakindu.sct.model.sgraph.FinalState;
+import org.yakindu.sct.model.sgraph.Import;
 import org.yakindu.sct.model.sgraph.Pseudostate;
 import org.yakindu.sct.model.sgraph.Reaction;
 import org.yakindu.sct.model.sgraph.ReactionProperty;
@@ -292,6 +293,12 @@ public class SGraphSwitch<T> extends Switch<T> {
 				if (result == null) result = defaultCase(theEObject);
 				return result;
 			}
+			case SGraphPackage.IMPORT: {
+				Import import_ = (Import)theEObject;
+				T result = caseImport(import_);
+				if (result == null) result = defaultCase(theEObject);
+				return result;
+			}
 			default: return defaultCase(theEObject);
 		}
 	}
@@ -446,6 +453,21 @@ public class SGraphSwitch<T> extends Switch<T> {
 		return null;
 	}
 
+	/**
+	 * Returns the result of interpreting the object as an instance of '<em>Import</em>'.
+	 * <!-- begin-user-doc -->
+	 * This implementation returns null;
+	 * returning a non-null result will terminate the switch.
+	 * <!-- end-user-doc -->
+	 * @param object the target of the switch.
+	 * @return the result of interpreting the object as an instance of '<em>Import</em>'.
+	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
+	 * @generated
+	 */
+	public T caseImport(Import object) {
+		return null;
+	}
+
 	/**
 	 * Returns the result of interpreting the object as an instance of '<em>Variable</em>'.
 	 * <!-- begin-user-doc -->

plugins/org.yakindu.sct.model.sgraph/src/org/yakindu/sct/model/sgraph/validation/DFS.java

@@ -1,6 +1,11 @@
 package org.yakindu.sct.model.sgraph.validation;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
 
 /** This class implements a generic depth first search algorithm,
  * which can be applied to any structure which can be interpreted as a