// license-header java merge-point
   //
   // Attention: generated code (by MetafacadeLogic.vsl) - do not modify!
   //
   package org.andromda.metafacades.uml14;
   
   import java.util.Collection;
   import java.util.List;
   import org.andromda.core.metafacade.MetafacadeBase;
  import org.andromda.core.metafacade.ModelValidationMessage;
  import org.andromda.metafacades.uml.EventFacade;
  import org.andromda.metafacades.uml.ParameterFacade;
  import org.andromda.metafacades.uml.StateFacade;
  import org.andromda.metafacades.uml.TransitionFacade;
  import org.apache.log4j.Logger;
  import org.omg.uml.behavioralelements.statemachines.Event;
  
  /**
   * A representation of the model object 'Activity'. The specification of parameterized behavior as
   * the coordinated sequencing of subordinate units whose individual elements are actions.
   * MetafacadeLogic for EventFacade
   *
   * @see EventFacade
   */
  public abstract class EventFacadeLogic
      extends ModelElementFacadeLogicImpl
      implements EventFacade
  {
      /**
       * The underlying UML object
       * @see Event
       */
      protected Event metaObject;
  
      /** Create Metafacade implementation instance using the MetafacadeFactory from the context
       * @param metaObjectIn
       * @param context
       */
      protected EventFacadeLogic(Event metaObjectIn, String context)
      {
          super(metaObjectIn, getContext(context));
          this.metaObject = metaObjectIn;
      }
  
      /**
       * The logger instance.
       */
      private static final Logger logger = Logger.getLogger(EventFacadeLogic.class);
  
      /**
       * Gets the context for this metafacade logic instance.
       * @param context String. Set to EventFacade if null
       * @return context String
       */
      private static String getContext(String context)
      {
          if (context == null)
          {
              context = "org.andromda.metafacades.uml.EventFacade";
          }
          return context;
      }
  
      /** Reset context only for non-root metafacades
       * @param 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);
          }
      }
  
      /**
       * @return boolean true always
       * @see EventFacade
       */
      public boolean isEventFacadeMetaType()
      {
          return true;
      }
  
      // ------------- associations ------------------
  
      /**
       * If this parameter is located on an event, this will represent that event.
       * @return (Collection<ParameterFacade>)handleGetParameters()
       */
      public final Collection<ParameterFacade> getParameters()
      {
          Collection<ParameterFacade> getParameters1r = null;
          // event has no pre constraints
          Collection result = handleGetParameters();
          List shieldedResult = this.shieldedElements(result);
          try
          {
             getParameters1r = (Collection<ParameterFacade>)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EventFacadeLogic.logger.warn("incorrect metafacade cast for EventFacadeLogic.getParameters Collection<ParameterFacade> " + result + ": " + shieldedResult);
         }
         // event has no post constraints
         return getParameters1r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetParameters();
 
     /**
      * If a trigger is present on this transition, this event represents that trigger.
      * @return (TransitionFacade)handleGetTransition()
      */
     public final TransitionFacade getTransition()
     {
         TransitionFacade getTransition2r = null;
         // trigger has no pre constraints
         Object result = handleGetTransition();
         MetafacadeBase shieldedResult = this.shieldedElement(result);
         try
         {
             getTransition2r = (TransitionFacade)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EventFacadeLogic.logger.warn("incorrect metafacade cast for EventFacadeLogic.getTransition TransitionFacade " + result + ": " + shieldedResult);
         }
         // trigger has no post constraints
         return getTransition2r;
     }
 
     /**
      * UML Specific type is transformed by shieldedElements to AndroMDA Metafacade type
      * @return Object
      */
     protected abstract Object handleGetTransition();
 
     /**
      * Events to which is being deferred in this action state.
      * @return (StateFacade)handleGetState()
      */
     public final StateFacade getState()
     {
         StateFacade getState3r = null;
         // deferrableEvents has no pre constraints
         Object result = handleGetState();
         MetafacadeBase shieldedResult = this.shieldedElement(result);
         try
         {
             getState3r = (StateFacade)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EventFacadeLogic.logger.warn("incorrect metafacade cast for EventFacadeLogic.getState StateFacade " + result + ": " + shieldedResult);
         }
         // deferrableEvents has no post constraints
         return getState3r;
     }
 
     /**
      * UML Specific type is transformed by shieldedElements to AndroMDA Metafacade type
      * @return Object
      */
     protected abstract Object handleGetState();
 
     /**
      * @param validationMessages Collection<ModelValidationMessage>
      * @see ModelElementFacadeLogicImpl#validateInvariants(Collection validationMessages)
      */
     @Override
     public void validateInvariants(Collection<ModelValidationMessage> validationMessages)
     {
         super.validateInvariants(validationMessages);
     }
 }