// 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.AttributeFacade;
  import org.andromda.metafacades.uml.ClassifierFacade;
  import org.andromda.metafacades.uml.EnumerationFacade;
  import org.andromda.translation.ocl.validation.OCLCollections;
  import org.andromda.translation.ocl.validation.OCLExpressions;
  import org.andromda.translation.ocl.validation.OCLIntrospector;
  import org.andromda.translation.ocl.validation.OCLResultEnsurer;
  import org.apache.log4j.Logger;
  import org.omg.uml.foundation.core.Classifier;
  
  /**
   * Represents an enumeration. A data type whose values are enumerated in the model as enumeration
   * literals. May also be a Classifier with Stereotype Enumeration.
   * MetafacadeLogic for EnumerationFacade
   *
   * @see EnumerationFacade
   */
  public abstract class EnumerationFacadeLogic
      extends ClassifierFacadeLogicImpl
      implements EnumerationFacade
  {
      /**
       * The underlying UML object
       * @see Object
       */
      protected Object metaObject;
  
      /** Create Metafacade implementation instance using the MetafacadeFactory from the context
       * @param metaObjectIn
       * @param context
       */
      protected EnumerationFacadeLogic(Object metaObjectIn, String context)
      {
          super((Classifier)metaObjectIn, getContext(context));
          this.metaObject = metaObjectIn;
      }
  
      /**
       * The logger instance.
       */
      private static final Logger logger = Logger.getLogger(EnumerationFacadeLogic.class);
  
      /**
       * Gets the context for this metafacade logic instance.
       * @param context String. Set to EnumerationFacade if null
       * @return context String
       */
      private static String getContext(String context)
      {
          if (context == null)
          {
              context = "org.andromda.metafacades.uml.EnumerationFacade";
          }
          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 EnumerationFacade
       */
      public boolean isEnumerationFacadeMetaType()
      {
          return true;
      }
  
      // --------------- attributes ---------------------
  
     /**
      * @see EnumerationFacade#getFromOperationSignature()
      * @return String
      */
      protected abstract String handleGetFromOperationSignature();
  
      private String __fromOperationSignature1a;
      private boolean __fromOperationSignature1aSet = false;
  
     /**
      * The 'from' operation signature.  This is the signature that takes the actual literal value
      * and allows a new enumeration to be constructed.
      * @return (String)handleGetFromOperationSignature()
      */
     public final String getFromOperationSignature()
     {
         String fromOperationSignature1a = this.__fromOperationSignature1a;
         if (!this.__fromOperationSignature1aSet)
         {
             // fromOperationSignature has no pre constraints
             fromOperationSignature1a = handleGetFromOperationSignature();
             // fromOperationSignature has no post constraints
             this.__fromOperationSignature1a = fromOperationSignature1a;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__fromOperationSignature1aSet = true;
             }
         }
         return fromOperationSignature1a;
     }
 
    /**
     * @see EnumerationFacade#getFromOperationName()
     * @return String
     */
     protected abstract String handleGetFromOperationName();
 
     private String __fromOperationName2a;
     private boolean __fromOperationName2aSet = false;
 
     /**
      * The 'from' operation name.  This is the name of the operation that takes the actual literal
      * value and allows a new enumeration to be constructed.
      * @return (String)handleGetFromOperationName()
      */
     public final String getFromOperationName()
     {
         String fromOperationName2a = this.__fromOperationName2a;
         if (!this.__fromOperationName2aSet)
         {
             // fromOperationName has no pre constraints
             fromOperationName2a = handleGetFromOperationName();
             // fromOperationName has no post constraints
             this.__fromOperationName2a = fromOperationName2a;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__fromOperationName2aSet = true;
             }
         }
         return fromOperationName2a;
     }
 
    /**
     * @see EnumerationFacade#isTypeSafe()
     * @return boolean
     */
     protected abstract boolean handleIsTypeSafe();
 
     private boolean __typeSafe3a;
     private boolean __typeSafe3aSet = false;
 
     /**
      * Indicates whether the enumeration must be generated using a Java 5 type-safe enum or a
      * traditional enumeration-pattern class.
      * @return (boolean)handleIsTypeSafe()
      */
     public final boolean isTypeSafe()
     {
         boolean typeSafe3a = this.__typeSafe3a;
         if (!this.__typeSafe3aSet)
         {
             // typeSafe has no pre constraints
             typeSafe3a = handleIsTypeSafe();
             // typeSafe has no post constraints
             this.__typeSafe3a = typeSafe3a;
             if (isMetafacadePropertyCachingEnabled())
             {
                 this.__typeSafe3aSet = true;
             }
         }
         return typeSafe3a;
     }
 
     // ------------- associations ------------------
 
     /**
      * Represents an enumeration. A data type whose values are enumerated in the model as
      * enumeration
      * literals. May also be a Classifier with Stereotype Enumeration.
      * @return (ClassifierFacade)handleGetLiteralType()
      */
     public final ClassifierFacade getLiteralType()
     {
         ClassifierFacade getLiteralType1r = null;
         // enumerationFacade has no pre constraints
         Object result = handleGetLiteralType();
         MetafacadeBase shieldedResult = this.shieldedElement(result);
         try
         {
             getLiteralType1r = (ClassifierFacade)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EnumerationFacadeLogic.logger.warn("incorrect metafacade cast for EnumerationFacadeLogic.getLiteralType ClassifierFacade " + result + ": " + shieldedResult);
         }
         // enumerationFacade has no post constraints
         return getLiteralType1r;
     }
 
     /**
      * UML Specific type is transformed by shieldedElements to AndroMDA Metafacade type
      * @return Object
      */
     protected abstract Object handleGetLiteralType();
 
     /**
      * If the attribute is an enumeration literal this represents the owning enumeration. Can be
      * empty.
      * @return (Collection<AttributeFacade>)handleGetLiterals()
      */
     public final Collection<AttributeFacade> getLiterals()
     {
         Collection<AttributeFacade> getLiterals2r = null;
         // enumeration has no pre constraints
         Collection result = handleGetLiterals();
         List shieldedResult = this.shieldedElements(result);
         try
         {
             getLiterals2r = (Collection<AttributeFacade>)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EnumerationFacadeLogic.logger.warn("incorrect metafacade cast for EnumerationFacadeLogic.getLiterals Collection<AttributeFacade> " + result + ": " + shieldedResult);
         }
         // enumeration has no post constraints
         return getLiterals2r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetLiterals();
 
     /**
      * Represents an enumeration. A data type whose values are enumerated in the model as
      * enumeration
      * literals. May also be a Classifier with Stereotype Enumeration.
      * @return (Collection<AttributeFacade>)handleGetMemberVariables()
      */
     public final Collection<AttributeFacade> getMemberVariables()
     {
         Collection<AttributeFacade> getMemberVariables3r = null;
         // enumeration has no pre constraints
         Collection result = handleGetMemberVariables();
         List shieldedResult = this.shieldedElements(result);
         try
         {
             getMemberVariables3r = (Collection<AttributeFacade>)shieldedResult;
         }
         catch (ClassCastException ex)
         {
             // Bad things happen if the metafacade type mapping in metafacades.xml is wrong - Warn
             EnumerationFacadeLogic.logger.warn("incorrect metafacade cast for EnumerationFacadeLogic.getMemberVariables Collection<AttributeFacade> " + result + ": " + shieldedResult);
         }
         // enumeration has no post constraints
         return getMemberVariables3r;
     }
 
     /**
      * UML Specific type is returned in Collection, transformed by shieldedElements to AndroMDA Metafacade type
      * @return  Collection
      */
     protected abstract Collection handleGetMemberVariables();
 
     /**
      * <p><b>Constraint:</b> org::andromda::metafacades::uml::EnumerationFacade::enumerations must have at least one literal value</p>
      * <p><b>Error:</b> An enumeration must have at least one literal modeled.</p>
      * <p><b>OCL:</b> context EnumerationFacade
 inv: literals -> notEmpty()</p>
      * <p><b>Constraint:</b> org::andromda::metafacades::uml::EnumerationFacade::name must be a valid identifier</p>
      * <p><b>Error:</b> Model Element name cannot be a reserved word</p>
      * <p><b>OCL:</b> context EnumerationFacade inv: validIdentifierName=true</p>
      * @param validationMessages Collection<ModelValidationMessage>
      * @see ClassifierFacadeLogicImpl#validateInvariants(Collection validationMessages)
      */
     @Override
     public void validateInvariants(Collection<ModelValidationMessage> validationMessages)
     {
         super.validateInvariants(validationMessages);
         try
         {
             final Object contextElement = this.THIS();
             boolean constraintValid = OCLResultEnsurer.ensure(OCLCollections.notEmpty(OCLIntrospector.invoke(contextElement,"literals")));
             if (!constraintValid)
             {
                 validationMessages.add(
                     new ModelValidationMessage(
                         (MetafacadeBase)contextElement ,
                         "org::andromda::metafacades::uml::EnumerationFacade::enumerations must have at least one literal value",
                         "An enumeration must have at least one literal modeled."));
             }
         }
         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::metafacades::uml::EnumerationFacade::enumerations must have at least one literal value' ON "
                 + this.THIS().toString() + ": " + th.getMessage(), th);
         }
         try
         {
             final Object contextElement = this.THIS();
             boolean constraintValid = OCLResultEnsurer.ensure(OCLExpressions.equal(OCLIntrospector.invoke(contextElement,"validIdentifierName"),true));
             if (!constraintValid)
             {
                 validationMessages.add(
                     new ModelValidationMessage(
                         (MetafacadeBase)contextElement ,
                         "org::andromda::metafacades::uml::EnumerationFacade::name must be a valid identifier",
                         "Model Element name cannot be a reserved word"));
             }
         }
         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::metafacades::uml::EnumerationFacade::name must be a valid identifier' ON "
                 + this.THIS().toString() + ": " + th.getMessage(), th);
         }
     }
 }