// license-header java merge-point
   //
   // Attention: generated code (by MetafacadeLogic.vsl) - do not modify!
   //
   package org.andromda.cartridges.bpm4struts.metafacades;
   
   import java.util.Collection;
   import org.andromda.core.common.Introspector;
   import org.andromda.core.metafacade.MetafacadeBase;
  import org.andromda.core.metafacade.MetafacadeFactory;
  import org.andromda.core.metafacade.ModelValidationMessage;
  import org.andromda.metafacades.uml.ActionStateFacade;
  import org.andromda.metafacades.uml.ConstraintFacade;
  import org.andromda.metafacades.uml.DependencyFacade;
  import org.andromda.metafacades.uml.FinalStateFacade;
  import org.andromda.metafacades.uml.FrontEndAction;
  import org.andromda.metafacades.uml.FrontEndActivityGraph;
  import org.andromda.metafacades.uml.FrontEndController;
  import org.andromda.metafacades.uml.ModelElementFacade;
  import org.andromda.metafacades.uml.ModelFacade;
  import org.andromda.metafacades.uml.ObjectFlowStateFacade;
  import org.andromda.metafacades.uml.PackageFacade;
  import org.andromda.metafacades.uml.PartitionFacade;
  import org.andromda.metafacades.uml.PseudostateFacade;
  import org.andromda.metafacades.uml.StateFacade;
  import org.andromda.metafacades.uml.StateMachineFacade;
  import org.andromda.metafacades.uml.StereotypeFacade;
  import org.andromda.metafacades.uml.TaggedValueFacade;
  import org.andromda.metafacades.uml.TemplateParameterFacade;
  import org.andromda.metafacades.uml.TransitionFacade;
  import org.andromda.metafacades.uml.TypeMappings;
  import org.andromda.metafacades.uml.UseCaseFacade;
  import org.andromda.translation.ocl.validation.OCLCollections;
  import org.andromda.translation.ocl.validation.OCLIntrospector;
  import org.andromda.translation.ocl.validation.OCLResultEnsurer;
  import org.apache.log4j.Logger;
  
  /**
   * Represents the activity graph describing the details of a Struts use-case.
   * MetafacadeLogic for StrutsActivityGraph
   *
   * @see StrutsActivityGraph
   */
  public abstract class StrutsActivityGraphLogic
      extends MetafacadeBase
      implements StrutsActivityGraph
  {
      /**
       * The underlying UML object
       * @see Object
       */
      protected Object metaObject;
  
      /** Create Metafacade implementation instance using the MetafacadeFactory from the context
       * @param metaObjectIn
       * @param context
       */
      protected StrutsActivityGraphLogic(Object metaObjectIn, String context)
      {
          super(metaObjectIn, getContext(context));
          this.superFrontEndActivityGraph =
             (FrontEndActivityGraph)
              MetafacadeFactory.getInstance().createFacadeImpl(
                      "org.andromda.metafacades.uml.FrontEndActivityGraph",
                      metaObjectIn,
                      getContext(context));
          this.metaObject = metaObjectIn;
      }
  
      /**
       * The logger instance.
       */
      private static final Logger logger = Logger.getLogger(StrutsActivityGraphLogic.class);
  
      /**
       * Gets the context for this metafacade logic instance.
       * @param context String. Set to StrutsActivityGraph if null
       * @return context String
       */
      private static String getContext(String context)
      {
          if (context == null)
          {
              context = "org.andromda.cartridges.bpm4struts.metafacades.StrutsActivityGraph";
          }
          return context;
      }
  
      private FrontEndActivityGraph superFrontEndActivityGraph;
      private boolean superFrontEndActivityGraphInitialized = false;
  
      /**
       * Gets the FrontEndActivityGraph parent instance.
       * @return this.superFrontEndActivityGraph FrontEndActivityGraph
       */
      private FrontEndActivityGraph getSuperFrontEndActivityGraph()
      {
          if (!this.superFrontEndActivityGraphInitialized)
          {
             ((MetafacadeBase)this.superFrontEndActivityGraph).setMetafacadeContext(this.getMetafacadeContext());
             this.superFrontEndActivityGraphInitialized = true;
         }
         return this.superFrontEndActivityGraph;
     }
 
     /** Reset context only for non-root metafacades
      * @param context
      * @see MetafacadeBase#resetMetafacadeContext(String context)
      */
     @Override
     public void resetMetafacadeContext(String context)
     {
         if (!this.contextRoot) // reset context only for non-root metafacades
         {
             context = getContext(context);  // to have same value as in original constructor call
             setMetafacadeContext (context);
             if (this.superFrontEndActivityGraphInitialized)
             {
                 ((MetafacadeBase)this.superFrontEndActivityGraph).resetMetafacadeContext(context);
             }
         }
     }
 
     /**
      * @return boolean true always
      * @see StrutsActivityGraph
      */
     public boolean isStrutsActivityGraphMetaType()
     {
         return true;
     }
 
     // ------------- associations ------------------
 
     private StrutsAction __getFirstAction1r;
     private boolean __getFirstAction1rSet = false;
 
     /**
      * Represents the activity graph describing the details of a Struts use-case.
      * @return (StrutsAction)handleGetFirstAction()
      */
     public final StrutsAction getFirstAction()
     {
         StrutsAction getFirstAction1r = this.__getFirstAction1r;
         if (!this.__getFirstAction1rSet)
         {
             // strutsActivityGraph has no pre constraints
             Object result = handleGetFirstAction();
             MetafacadeBase shieldedResult = this.shieldedElement(result);
             try
             {
                 getFirstAction1r = (StrutsAction)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 StrutsActivityGraphLogic.logger.warn("incorrect metafacade cast for StrutsActivityGraphLogic.getFirstAction StrutsAction " + result + ": " + shieldedResult);
             }
             // strutsActivityGraph has no post constraints
             this.__getFirstAction1r = getFirstAction1r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getFirstAction1rSet = true;
             }
         }
         return getFirstAction1r;
     }
 
     /**
      * UML Specific type is transformed by shieldedElements to AndroMDA Metafacade type
      * @return Object
      */
     protected abstract Object handleGetFirstAction();
 
     /**
      * @return true
      * @see FrontEndActivityGraph
      */
     public boolean isFrontEndActivityGraphMetaType()
     {
         return true;
     }
 
     /**
      * @return true
      * @see org.andromda.metafacades.uml.ActivityGraphFacade
      */
     public boolean isActivityGraphFacadeMetaType()
     {
         return true;
     }
 
     /**
      * @return true
      * @see StateMachineFacade
      */
     public boolean isStateMachineFacadeMetaType()
     {
         return true;
     }
 
     /**
      * @return true
      * @see ModelElementFacade
      */
     public boolean isModelElementFacadeMetaType()
     {
         return true;
     }
 
     // ----------- delegates to FrontEndActivityGraph ------------
     /**
      * The set of action states contained in this activity graph.
      * @see org.andromda.metafacades.uml.ActivityGraphFacade#getActionStates()
      */
     public Collection<ActionStateFacade> getActionStates()
     {
         return this.getSuperFrontEndActivityGraph().getActionStates();
     }
 
     /**
      * The set of object flow states contained in this activity graph.
      * @see org.andromda.metafacades.uml.ActivityGraphFacade#getObjectFlowStates()
      */
     public Collection<ObjectFlowStateFacade> getObjectFlowStates()
     {
         return this.getSuperFrontEndActivityGraph().getObjectFlowStates();
     }
 
     /**
      * The set of partitions contained in this activity graph. Partitions are also known as
      * swimlanes in UML.
      * @see org.andromda.metafacades.uml.ActivityGraphFacade#getPartitions()
      */
     public Collection<PartitionFacade> getPartitions()
     {
         return this.getSuperFrontEndActivityGraph().getPartitions();
     }
 
     /**
      * The use-case owning this activity graph.
      * @see org.andromda.metafacades.uml.ActivityGraphFacade#getUseCase()
      */
     public UseCaseFacade getUseCase()
     {
         return this.getSuperFrontEndActivityGraph().getUseCase();
     }
 
     /**
      * The controller context for this activity graph. This controller can be the target of
      * deferrable events in the action states and transitions in this graph.
      * @see FrontEndActivityGraph#getController()
      */
     public FrontEndController getController()
     {
         return this.getSuperFrontEndActivityGraph().getController();
     }
 
     /**
      * This is the initial action encountered in this activity graph. This is the one and only
      * transition coming out of the initial state.
      * @see FrontEndActivityGraph#getInitialAction()
      */
     public FrontEndAction getInitialAction()
     {
         return this.getSuperFrontEndActivityGraph().getInitialAction();
     }
 
     /**
      * True if this element is contained in a FrontEndUseCase.
      * @see FrontEndActivityGraph#isContainedInFrontEndUseCase()
      */
     public boolean isContainedInFrontEndUseCase()
     {
         return this.getSuperFrontEndActivityGraph().isContainedInFrontEndUseCase();
     }
 
     /**
      * Copies all tagged values from the given ModelElementFacade to this model element facade.
      * @see ModelElementFacade#copyTaggedValues(ModelElementFacade element)
      */
     public void copyTaggedValues(ModelElementFacade element)
     {
         this.getSuperFrontEndActivityGraph().copyTaggedValues(element);
     }
 
     /**
      * Finds the tagged value with the specified 'tagName'. In case there are more values the first
      * one found will be returned.
      * @see ModelElementFacade#findTaggedValue(String tagName)
      */
     public Object findTaggedValue(String tagName)
     {
         return this.getSuperFrontEndActivityGraph().findTaggedValue(tagName);
     }
 
     /**
      * Returns all the values for the tagged value with the specified name. The returned collection
      * will contains only String instances, or will be empty. Never null.
      * @see ModelElementFacade#findTaggedValues(String tagName)
      */
     public Collection<Object> findTaggedValues(String tagName)
     {
         return this.getSuperFrontEndActivityGraph().findTaggedValues(tagName);
     }
 
     /**
      * Returns the fully qualified name of the model element. The fully qualified name includes
      * complete package qualified name of the underlying model element. The templates parameter will
      * be replaced by the correct one given the binding relation of the parameter to this element.
      * @see ModelElementFacade#getBindedFullyQualifiedName(ModelElementFacade bindedElement)
      */
     public String getBindedFullyQualifiedName(ModelElementFacade bindedElement)
     {
         return this.getSuperFrontEndActivityGraph().getBindedFullyQualifiedName(bindedElement);
     }
 
     /**
      * Gets all constraints belonging to the model element.
      * @see ModelElementFacade#getConstraints()
      */
     public Collection<ConstraintFacade> getConstraints()
     {
         return this.getSuperFrontEndActivityGraph().getConstraints();
     }
 
     /**
      * Returns the constraints of the argument kind that have been placed onto this model. Typical
      * kinds are "inv", "pre" and "post". Other kinds are possible.
      * @see ModelElementFacade#getConstraints(String kind)
      */
     public Collection<ConstraintFacade> getConstraints(String kind)
     {
         return this.getSuperFrontEndActivityGraph().getConstraints(kind);
     }
 
     /**
      * Gets the documentation for the model element, The indent argument is prefixed to each line.
      * By default this method wraps lines after 64 characters.
      * This method is equivalent to <code>getDocumentation(indent, 64)</code>.
      * @see ModelElementFacade#getDocumentation(String indent)
      */
     public String getDocumentation(String indent)
     {
         return this.getSuperFrontEndActivityGraph().getDocumentation(indent);
     }
 
     /**
      * This method returns the documentation for this model element, with the lines wrapped after
      * the specified number of characters, values of less than 1 will indicate no line wrapping is
      * required. By default paragraphs are returned as HTML.
      * This method is equivalent to <code>getDocumentation(indent, lineLength, true)</code>.
      * @see ModelElementFacade#getDocumentation(String indent, int lineLength)
      */
     public String getDocumentation(String indent, int lineLength)
     {
         return this.getSuperFrontEndActivityGraph().getDocumentation(indent, lineLength);
     }
 
     /**
      * This method returns the documentation for this model element, with the lines wrapped after
      * the specified number of characters, values of less than 1 will indicate no line wrapping is
      * required. HTML style determines if HTML Escaping is applied.
      * @see ModelElementFacade#getDocumentation(String indent, int lineLength, boolean htmlStyle)
      */
     public String getDocumentation(String indent, int lineLength, boolean htmlStyle)
     {
         return this.getSuperFrontEndActivityGraph().getDocumentation(indent, lineLength, htmlStyle);
     }
 
     /**
      * The fully qualified name of this model element.
      * @see ModelElementFacade#getFullyQualifiedName()
      */
     public String getFullyQualifiedName()
     {
         return this.getSuperFrontEndActivityGraph().getFullyQualifiedName();
     }
 
     /**
      * Returns the fully qualified name of the model element. The fully qualified name includes
      * complete package qualified name of the underlying model element.  If modelName is true, then
      * the original name of the model element (the name contained within the model) will be the name
      * returned, otherwise a name from a language mapping will be returned.
      * @see ModelElementFacade#getFullyQualifiedName(boolean modelName)
      */
     public String getFullyQualifiedName(boolean modelName)
     {
         return this.getSuperFrontEndActivityGraph().getFullyQualifiedName(modelName);
     }
 
     /**
      * Returns the fully qualified name as a path, the returned value always starts with out a slash
      * '/'.
      * @see ModelElementFacade#getFullyQualifiedNamePath()
      */
     public String getFullyQualifiedNamePath()
     {
         return this.getSuperFrontEndActivityGraph().getFullyQualifiedNamePath();
     }
 
     /**
      * Gets the unique identifier of the underlying model element.
      * @see ModelElementFacade#getId()
      */
     public String getId()
     {
         return this.getSuperFrontEndActivityGraph().getId();
     }
 
     /**
      * UML2: Retrieves the keywords for this element. Used to modify implementation properties which
      * are not represented by other properties, i.e. native, transient, volatile, synchronized,
      * (added annotations) override, deprecated. Can also be used to suppress compiler warnings:
      * (added annotations) unchecked, fallthrough, path, serial, finally, all. Annotations require
      * JDK5 compiler level.
      * @see ModelElementFacade#getKeywords()
      */
     public Collection<String> getKeywords()
     {
         return this.getSuperFrontEndActivityGraph().getKeywords();
     }
 
     /**
      * UML2: Retrieves a localized label for this named element.
      * @see ModelElementFacade#getLabel()
      */
     public String getLabel()
     {
         return this.getSuperFrontEndActivityGraph().getLabel();
     }
 
     /**
      * The language mappings that have been set for this model element.
      * @see ModelElementFacade#getLanguageMappings()
      */
     public TypeMappings getLanguageMappings()
     {
         return this.getSuperFrontEndActivityGraph().getLanguageMappings();
     }
 
     /**
      * Return the model containing this model element (multiple models may be loaded and processed
      * at the same time).
      * @see ModelElementFacade#getModel()
      */
     public ModelFacade getModel()
     {
         return this.getSuperFrontEndActivityGraph().getModel();
     }
 
     /**
      * The name of the model element.
      * @see ModelElementFacade#getName()
      */
     public String getName()
     {
         return this.getSuperFrontEndActivityGraph().getName();
     }
 
     /**
      * Gets the package to which this model element belongs.
      * @see ModelElementFacade#getPackage()
      */
     public ModelElementFacade getPackage()
     {
         return this.getSuperFrontEndActivityGraph().getPackage();
     }
 
     /**
      * The name of this model element's package.
      * @see ModelElementFacade#getPackageName()
      */
     public String getPackageName()
     {
         return this.getSuperFrontEndActivityGraph().getPackageName();
     }
 
     /**
      * Gets the package name (optionally providing the ability to retrieve the model name and not
      * the mapped name).
      * @see ModelElementFacade#getPackageName(boolean modelName)
      */
     public String getPackageName(boolean modelName)
     {
         return this.getSuperFrontEndActivityGraph().getPackageName(modelName);
     }
 
     /**
      * Returns the package as a path, the returned value always starts with out a slash '/'.
      * @see ModelElementFacade#getPackagePath()
      */
     public String getPackagePath()
     {
         return this.getSuperFrontEndActivityGraph().getPackagePath();
     }
 
     /**
      * UML2: Returns the value of the 'Qualified Name' attribute. A name which allows the
      * NamedElement to be identified within a hierarchy of nested Namespaces. It is constructed from
      * the names of the containing namespaces starting at the root of the hierarchy and ending with
      * the name of the NamedElement itself.
      * @see ModelElementFacade#getQualifiedName()
      */
     public String getQualifiedName()
     {
         return this.getSuperFrontEndActivityGraph().getQualifiedName();
     }
 
     /**
      * Gets the root package for the model element.
      * @see ModelElementFacade#getRootPackage()
      */
     public PackageFacade getRootPackage()
     {
         return this.getSuperFrontEndActivityGraph().getRootPackage();
     }
 
     /**
      * Gets the dependencies for which this model element is the source.
      * @see ModelElementFacade#getSourceDependencies()
      */
     public Collection<DependencyFacade> getSourceDependencies()
     {
         return this.getSuperFrontEndActivityGraph().getSourceDependencies();
     }
 
     /**
      * If this model element is the context of an activity graph, this represents that activity
      * graph.
      * @see ModelElementFacade#getStateMachineContext()
      */
     public StateMachineFacade getStateMachineContext()
     {
         return this.getSuperFrontEndActivityGraph().getStateMachineContext();
     }
 
     /**
      * The collection of ALL stereotype names for this model element.
      * @see ModelElementFacade#getStereotypeNames()
      */
     public Collection<String> getStereotypeNames()
     {
         return this.getSuperFrontEndActivityGraph().getStereotypeNames();
     }
 
     /**
      * Gets all stereotypes for this model element.
      * @see ModelElementFacade#getStereotypes()
      */
     public Collection<StereotypeFacade> getStereotypes()
     {
         return this.getSuperFrontEndActivityGraph().getStereotypes();
     }
 
     /**
      * Return the TaggedValues associated with this model element, under all stereotypes.
      * @see ModelElementFacade#getTaggedValues()
      */
     public Collection<TaggedValueFacade> getTaggedValues()
     {
         return this.getSuperFrontEndActivityGraph().getTaggedValues();
     }
 
     /**
      * Gets the dependencies for which this model element is the target.
      * @see ModelElementFacade#getTargetDependencies()
      */
     public Collection<DependencyFacade> getTargetDependencies()
     {
         return this.getSuperFrontEndActivityGraph().getTargetDependencies();
     }
 
     /**
      * Get the template parameter for this model element having the parameterName
      * @see ModelElementFacade#getTemplateParameter(String parameterName)
      */
     public Object getTemplateParameter(String parameterName)
     {
         return this.getSuperFrontEndActivityGraph().getTemplateParameter(parameterName);
     }
 
     /**
      * Get the template parameters for this model element
      * @see ModelElementFacade#getTemplateParameters()
      */
     public Collection<TemplateParameterFacade> getTemplateParameters()
     {
         return this.getSuperFrontEndActivityGraph().getTemplateParameters();
     }
 
     /**
      * The visibility (i.e. public, private, protected or package) of the model element, will
      * attempt a lookup for these values in the language mappings (if any).
      * @see ModelElementFacade#getVisibility()
      */
     public String getVisibility()
     {
         return this.getSuperFrontEndActivityGraph().getVisibility();
     }
 
     /**
      * Returns true if the model element has the exact stereotype (meaning no stereotype inheritance
      * is taken into account when searching for the stereotype), false otherwise.
      * @see ModelElementFacade#hasExactStereotype(String stereotypeName)
      */
     public boolean hasExactStereotype(String stereotypeName)
     {
         return this.getSuperFrontEndActivityGraph().hasExactStereotype(stereotypeName);
     }
 
     /**
      * Does the UML Element contain the named Keyword? Keywords can be separated by space, comma,
      * pipe, semicolon, or << >>
      * @see ModelElementFacade#hasKeyword(String keywordName)
      */
     public boolean hasKeyword(String keywordName)
     {
         return this.getSuperFrontEndActivityGraph().hasKeyword(keywordName);
     }
 
     /**
      * Returns true if the model element has the specified stereotype.  If the stereotype itself
      * does not match, then a search will be made up the stereotype inheritance hierarchy, and if
      * one of the stereotype's ancestors has a matching name this method will return true, false
      * otherwise.
      * For example, if we have a certain stereotype called <<exception>> and a model element has a
      * stereotype called <<applicationException>> which extends <<exception>>, when calling this
      * method with 'stereotypeName' defined as 'exception' the method would return true since
      * <<applicationException>> inherits from <<exception>>.  If you want to check if the model
      * element has the exact stereotype, then use the method 'hasExactStereotype' instead.
      * @see ModelElementFacade#hasStereotype(String stereotypeName)
      */
     public boolean hasStereotype(String stereotypeName)
     {
         return this.getSuperFrontEndActivityGraph().hasStereotype(stereotypeName);
     }
 
     /**
      * True if there are target dependencies from this element that are instances of BindingFacade.
      * Deprecated in UML2: Use TemplateBinding parameters instead of dependencies.
      * @see ModelElementFacade#isBindingDependenciesPresent()
      */
     public boolean isBindingDependenciesPresent()
     {
         return this.getSuperFrontEndActivityGraph().isBindingDependenciesPresent();
     }
 
     /**
      * Indicates if any constraints are present on this model element.
      * @see ModelElementFacade#isConstraintsPresent()
      */
     public boolean isConstraintsPresent()
     {
         return this.getSuperFrontEndActivityGraph().isConstraintsPresent();
     }
 
     /**
      * Indicates if any documentation is present on this model element.
      * @see ModelElementFacade#isDocumentationPresent()
      */
     public boolean isDocumentationPresent()
     {
         return this.getSuperFrontEndActivityGraph().isDocumentationPresent();
     }
 
     /**
      * True if this element name is a reserved word in Java, C#, ANSI or ISO C, C++, JavaScript.
      * @see ModelElementFacade#isReservedWord()
      */
     public boolean isReservedWord()
     {
         return this.getSuperFrontEndActivityGraph().isReservedWord();
     }
 
     /**
      * True is there are template parameters on this model element. For UML2, applies to Class,
      * Operation, Property, and Parameter.
      * @see ModelElementFacade#isTemplateParametersPresent()
      */
     public boolean isTemplateParametersPresent()
     {
         return this.getSuperFrontEndActivityGraph().isTemplateParametersPresent();
     }
 
     /**
      * True if this element name is a valid identifier name in Java, C#, ANSI or ISO C, C++,
      * JavaScript. Contains no spaces, special characters etc. Constraint always applied on
      * Enumerations and Interfaces, optionally applies on other model elements.
      * @see ModelElementFacade#isValidIdentifierName()
      */
     public boolean isValidIdentifierName()
     {
         return this.getSuperFrontEndActivityGraph().isValidIdentifierName();
     }
 
     /**
      * Searches for the constraint with the specified 'name' on this model element, and if found
      * translates it using the specified 'translation' from a translation library discovered by the
      * framework.
      * @see ModelElementFacade#translateConstraint(String name, String translation)
      */
     public String translateConstraint(String name, String translation)
     {
         return this.getSuperFrontEndActivityGraph().translateConstraint(name, translation);
     }
 
     /**
      * Translates all constraints belonging to this model element with the given 'translation'.
      * @see ModelElementFacade#translateConstraints(String translation)
      */
     public String[] translateConstraints(String translation)
     {
         return this.getSuperFrontEndActivityGraph().translateConstraints(translation);
     }
 
     /**
      * Translates the constraints of the specified 'kind' belonging to this model element.
      * @see ModelElementFacade#translateConstraints(String kind, String translation)
      */
     public String[] translateConstraints(String kind, String translation)
     {
         return this.getSuperFrontEndActivityGraph().translateConstraints(kind, translation);
     }
 
     /**
      * Represents a model element. It may be an Element or NamedElement. A named element is an
      * element in a
      * model that may have a name. An element is a constituent of a model. As such, it has the
      * capability
      * of owning other elements.
      * @see StateMachineFacade#getContextElement()
      */
     public ModelElementFacade getContextElement()
     {
         return this.getSuperFrontEndActivityGraph().getContextElement();
     }
 
     /**
      * A special kind of state signifying that the enclosing region is completed. If the enclosing
      * region
      * is directly contained in a state machine and all other regions in the state machine also are
      * completed, then it means that the entire state machine is completed.
      * @see StateMachineFacade#getFinalStates()
      */
     public Collection<FinalStateFacade> getFinalStates()
     {
         return this.getSuperFrontEndActivityGraph().getFinalStates();
     }
 
     /**
      * The first initial state (if any) found in this activity graph. Although technically many
      * initial states per graph are allowed, it makes sense to have only one, for this reason we
      * provide this property.
      * @see StateMachineFacade#getInitialState()
      */
     public PseudostateFacade getInitialState()
     {
         return this.getSuperFrontEndActivityGraph().getInitialState();
     }
 
     /**
      * An abstraction that encompasses different types of transient vertices in the state machine
      * graph.
      * @see StateMachineFacade#getInitialStates()
      */
     public Collection<PseudostateFacade> getInitialStates()
     {
         return this.getSuperFrontEndActivityGraph().getInitialStates();
     }
 
     /**
      * The first transition on the first initial state found for this activity graph.
      * @see StateMachineFacade#getInitialTransition()
      */
     public TransitionFacade getInitialTransition()
     {
         return this.getSuperFrontEndActivityGraph().getInitialTransition();
     }
 
     /**
      * An abstraction that encompasses different types of transient vertices in the state machine
      * graph.
      * @see StateMachineFacade#getPseudostates()
      */
     public Collection<PseudostateFacade> getPseudostates()
     {
         return this.getSuperFrontEndActivityGraph().getPseudostates();
     }
 
     /**
      * Models a situation during which some (usually implicit) invariant condition holds. The states
      * of
      * protocol state machines are exposed to the users of their context classifiers. A protocol
      * state
      * represents an exposed stable situation of its context classifier: when an instance of the
      * classifier
      * is not processing any operation, users of this instance can always know its state
      * configuration.
      * @see StateMachineFacade#getStates()
      */
     public Collection<StateFacade> getStates()
     {
         return this.getSuperFrontEndActivityGraph().getStates();
     }
 
     /**
      * A directed relationship between a source vertex and a target vertex. It may be part of a
      * compound
      * transition, which takes the state machine from one state configuration to another,
      * representing the
      * complete response of the state machine to an occurrence of an event of a particular type.
      * @see StateMachineFacade#getTransitions()
      */
     public Collection<TransitionFacade> getTransitions()
     {
         return this.getSuperFrontEndActivityGraph().getTransitions();
     }
 
     /**
      * @see MetafacadeBase#initialize()
      */
     @Override
     public void initialize()
     {
         this.getSuperFrontEndActivityGraph().initialize();
     }
 
     /**
      * @return Object getSuperFrontEndActivityGraph().getValidationOwner()
      * @see MetafacadeBase#getValidationOwner()
      */
     @Override
     public Object getValidationOwner()
     {
         Object owner = this.getSuperFrontEndActivityGraph().getValidationOwner();
         return owner;
     }
 
     /**
      * @return String getSuperFrontEndActivityGraph().getValidationName()
      * @see MetafacadeBase#getValidationName()
      */
     @Override
     public String getValidationName()
     {
         String name = this.getSuperFrontEndActivityGraph().getValidationName();
         return name;
     }
 
     /**
      * <p><b>Constraint:</b> org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::graph must have an action modeled on it's initial state</p>
      * <p><b>Error:</b> Each activity graph must have an action transition exiting the initial state, this is the minimum required.</p>
      * <p><b>OCL:</b> context StrutsActivityGraph inv: firstAction->notEmpty()</p>
      * <p><b>Constraint:</b> org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::front end graph must have a controller context</p>
      * <p><b>Error:</b> An activity graph must have a controller class context to which (optionally) operations can be deferred. Make sure this graph's use-case has the FrontEndUseCase stereotype.</p>
      * <p><b>OCL:</b> context FrontEndActivityGraph inv: controller->notEmpty()</p>
      * @param validationMessages Collection<ModelValidationMessage>
      * @see MetafacadeBase#validateInvariants(Collection validationMessages)
      */
     @Override
     public void validateInvariants(Collection<ModelValidationMessage> validationMessages)
     {
         this.getSuperFrontEndActivityGraph().validateInvariants(validationMessages);
         try
         {
             final Object contextElement = this.THIS();
             boolean constraintValid = OCLResultEnsurer.ensure(OCLCollections.notEmpty(OCLIntrospector.invoke(contextElement,"firstAction")));
             if (!constraintValid)
             {
                 validationMessages.add(
                     new ModelValidationMessage(
                         (MetafacadeBase)contextElement ,
                         "org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::graph must have an action modeled on it's initial state",
                         "Each activity graph must have an action transition exiting the initial state, this is the minimum required."));
             }
         }
         catch (Throwable th)
         {
             Throwable cause = th.getCause();
             int depth = 0; // Some throwables have infinite recursion
             while (cause != null && depth < 7)
             {
                 th = cause;
                 depth++;
             }
             logger.error("Error validating constraint 'org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::graph must have an action modeled on it's initial state' ON "
                 + this.THIS().toString() + ": " + th.getMessage(), th);
         }
         try
         {
             final Object contextElement = this.THIS();
             boolean constraintValid = OCLResultEnsurer.ensure(OCLCollections.notEmpty(OCLIntrospector.invoke(contextElement,"controller")));
             if (!constraintValid)
             {
                 validationMessages.add(
                     new ModelValidationMessage(
                         (MetafacadeBase)contextElement ,
                         "org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::front end graph must have a controller context",
                         "An activity graph must have a controller class context to which (optionally) operations can be deferred. Make sure this graph's use-case has the FrontEndUseCase stereotype."));
             }
         }
         catch (Throwable th)
         {
             Throwable cause = th.getCause();
             int depth = 0; // Some throwables have infinite recursion
             while (cause != null && depth < 7)
             {
                 th = cause;
                 depth++;
             }
             logger.error("Error validating constraint 'org::andromda::cartridges::bpm4struts::metafacades::StrutsActivityGraph::front end graph must have a controller context' ON "
                 + this.THIS().toString() + ": " + th.getMessage(), th);
         }
     }
 
     /**
      * The property that stores the name of the metafacade.
      */
     private static final String NAME_PROPERTY = "name";
     private static final String FQNAME_PROPERTY = "fullyQualifiedName";
 
     /**
      * @see Object#toString()
      */
     @Override
     public String toString()
     {
         final StringBuilder toString = new StringBuilder(this.getClass().getName());
         toString.append("[");
         try
         {
             toString.append(Introspector.instance().getProperty(this, FQNAME_PROPERTY));
         }
         catch (final Throwable tryAgain)
         {
             try
             {
                 toString.append(Introspector.instance().getProperty(this, NAME_PROPERTY));
             }
             catch (final Throwable ignore)
             {
                 // - just ignore when the metafacade doesn't have a name or fullyQualifiedName property
             }
         }
         toString.append("]");
         return toString.toString();
     }
 }