// 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();
    }
}