// 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.ModelValidationMessage;
  import org.andromda.metafacades.uml.AttributeLinkFacade;
  import org.andromda.metafacades.uml.ClassifierFacade;
  import org.andromda.metafacades.uml.InstanceFacade;
  import org.andromda.metafacades.uml.LinkEndFacade;
  import org.andromda.metafacades.uml.LinkFacade;
  import org.apache.log4j.Logger;
  import org.omg.uml.behavioralelements.commonbehavior.Instance;
  
  /**
   * A representation of the model object 'Instance Specification'. Represents an instance in a
   * modeled system. Has the capability of being a deployment target in a deployment relationship, in
   * the case that it is an instance of a node. Has the capability of being a deployed artifact, if it
   * is an instance of an artifact.
   * MetafacadeLogic for InstanceFacade
   *
   * @see InstanceFacade
   */
  public abstract class InstanceFacadeLogic
      extends ModelElementFacadeLogicImpl
      implements InstanceFacade
  {
      /**
       * The underlying UML object
       * @see Instance
       */
      protected Instance metaObject;
  
      /** Create Metafacade implementation instance using the MetafacadeFactory from the context
       * @param metaObjectIn
       * @param context
       */
      protected InstanceFacadeLogic(Instance metaObjectIn, String context)
      {
          super(metaObjectIn, getContext(context));
          this.metaObject = metaObjectIn;
      }
  
      /**
       * The logger instance.
       */
      private static final Logger logger = Logger.getLogger(InstanceFacadeLogic.class);
  
      /**
       * Gets the context for this metafacade logic instance.
       * @param context String. Set to InstanceFacade if null
       * @return context String
       */
      private static String getContext(String context)
      {
          if (context == null)
          {
              context = "org.andromda.metafacades.uml.InstanceFacade";
          }
          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 InstanceFacade
       */
      public boolean isInstanceFacadeMetaType()
      {
          return true;
      }
  
      // ------------- associations ------------------
  
      private Collection<LinkFacade> __getOwnedLinks1r;
      private boolean __getOwnedLinks1rSet = false;
  
      /**
       * A representation of the model object 'Instance Specification'. Represents an instance in a
       * modeled
       * system. Has the capability of being a deployment target in a deployment relationship, in the
       * case
       * that it is an instance of a node. Has the capability of being a deployed artifact, if it is
       * an
      * instance of an artifact.
      * @return (Collection<LinkFacade>)handleGetOwnedLinks()
      */
     public final Collection<LinkFacade> getOwnedLinks()
     {
         Collection<LinkFacade> getOwnedLinks1r = this.__getOwnedLinks1r;
         if (!this.__getOwnedLinks1rSet)
         {
             // instanceFacade has no pre constraints
             Collection result = handleGetOwnedLinks();
             List shieldedResult = this.shieldedElements(result);
             try
             {
                 getOwnedLinks1r = (Collection<LinkFacade>)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getOwnedLinks Collection<LinkFacade> " + result + ": " + shieldedResult);
             }
             // instanceFacade has no post constraints
             this.__getOwnedLinks1r = getOwnedLinks1r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getOwnedLinks1rSet = true;
             }
         }
         return getOwnedLinks1r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetOwnedLinks();
 
     private Collection<InstanceFacade> __getOwnedInstances2r;
     private boolean __getOwnedInstances2rSet = false;
 
     /**
      * A representation of the model object 'Instance Specification'. Represents an instance in a
      * modeled
      * system. Has the capability of being a deployment target in a deployment relationship, in the
      * case
      * that it is an instance of a node. Has the capability of being a deployed artifact, if it is
      * an
      * instance of an artifact.
      * @return (Collection<InstanceFacade>)handleGetOwnedInstances()
      */
     public final Collection<InstanceFacade> getOwnedInstances()
     {
         Collection<InstanceFacade> getOwnedInstances2r = this.__getOwnedInstances2r;
         if (!this.__getOwnedInstances2rSet)
         {
             // instanceFacade has no pre constraints
             Collection result = handleGetOwnedInstances();
             List shieldedResult = this.shieldedElements(result);
             try
             {
                 getOwnedInstances2r = (Collection<InstanceFacade>)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getOwnedInstances Collection<InstanceFacade> " + result + ": " + shieldedResult);
             }
             // instanceFacade has no post constraints
             this.__getOwnedInstances2r = getOwnedInstances2r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getOwnedInstances2rSet = true;
             }
         }
         return getOwnedInstances2r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetOwnedInstances();
 
     /**
      * The instances this attribute link is attached too. An attribute link can have many instance
      * values when its defining feature is an attribute with a 'many' multiplicity.
      * @return (Collection<AttributeLinkFacade>)handleGetSlots()
      */
     public final Collection<AttributeLinkFacade> getSlots()
     {
         Collection<AttributeLinkFacade> getSlots3r = null;
         // values has no pre constraints
         Collection result = handleGetSlots();
         List shieldedResult = this.shieldedElements(result);
         try
         {
             getSlots3r = (Collection<AttributeLinkFacade>)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getSlots Collection<AttributeLinkFacade> " + result + ": " + shieldedResult);
         }
         // values has no post constraints
         return getSlots3r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetSlots();
 
     private Collection<LinkEndFacade> __getLinkEnds4r;
     private boolean __getLinkEnds4rSet = false;
 
     /**
      * The first instance to which this link end is attached.
      * @return (Collection<LinkEndFacade>)handleGetLinkEnds()
      */
     public final Collection<LinkEndFacade> getLinkEnds()
     {
         Collection<LinkEndFacade> getLinkEnds4r = this.__getLinkEnds4r;
         if (!this.__getLinkEnds4rSet)
         {
             // instance has no pre constraints
             Collection result = handleGetLinkEnds();
             List shieldedResult = this.shieldedElements(result);
             try
             {
                 getLinkEnds4r = (Collection<LinkEndFacade>)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getLinkEnds Collection<LinkEndFacade> " + result + ": " + shieldedResult);
             }
             // instance has no post constraints
             this.__getLinkEnds4r = getLinkEnds4r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getLinkEnds4rSet = true;
             }
         }
         return getLinkEnds4r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetLinkEnds();
 
     private Collection<ClassifierFacade> __getClassifiers5r;
     private boolean __getClassifiers5rSet = false;
 
     /**
      * A representation of the model object 'Instance Specification'. Represents an instance in a
      * modeled
      * system. Has the capability of being a deployment target in a deployment relationship, in the
      * case
      * that it is an instance of a node. Has the capability of being a deployed artifact, if it is
      * an
      * instance of an artifact.
      * @return (Collection<ClassifierFacade>)handleGetClassifiers()
      */
     public final Collection<ClassifierFacade> getClassifiers()
     {
         Collection<ClassifierFacade> getClassifiers5r = this.__getClassifiers5r;
         if (!this.__getClassifiers5rSet)
         {
             // instanceFacade has no pre constraints
             Collection result = handleGetClassifiers();
             List shieldedResult = this.shieldedElements(result);
             try
             {
                 getClassifiers5r = (Collection<ClassifierFacade>)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getClassifiers Collection<ClassifierFacade> " + result + ": " + shieldedResult);
             }
             // instanceFacade has no post constraints
             this.__getClassifiers5r = getClassifiers5r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getClassifiers5rSet = true;
             }
         }
         return getClassifiers5r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetClassifiers();
 
     private Collection<AttributeLinkFacade> __getAttributeLinks6r;
     private boolean __getAttributeLinks6rSet = false;
 
     /**
      * The owning instance for this link.
      * @return (Collection<AttributeLinkFacade>)handleGetAttributeLinks()
      */
     public final Collection<AttributeLinkFacade> getAttributeLinks()
     {
         Collection<AttributeLinkFacade> getAttributeLinks6r = this.__getAttributeLinks6r;
         if (!this.__getAttributeLinks6rSet)
         {
             // instance has no pre constraints
             Collection result = handleGetAttributeLinks();
             List shieldedResult = this.shieldedElements(result);
             try
             {
                 getAttributeLinks6r = (Collection<AttributeLinkFacade>)shieldedResult;
             }
             catch (ClassCastException ex)
             {
                 // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
                 InstanceFacadeLogic.logger.warn("incorrect metafacade cast for InstanceFacadeLogic.getAttributeLinks Collection<AttributeLinkFacade> " + result + ": " + shieldedResult);
             }
             // instance has no post constraints
             this.__getAttributeLinks6r = getAttributeLinks6r;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__getAttributeLinks6rSet = true;
             }
         }
         return getAttributeLinks6r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetAttributeLinks();
 
     /**
      * @param validationMessages Collection<ModelValidationMessage>
      * @see ModelElementFacadeLogicImpl#validateInvariants(Collection validationMessages)
      */
     @Override
     public void validateInvariants(Collection<ModelValidationMessage> validationMessages)
     {
         super.validateInvariants(validationMessages);
     }
 }