package org.andromda.metafacades.uml14;
   
   import org.andromda.metafacades.uml.Entity;
   import org.andromda.metafacades.uml.UMLMetafacadeProperties;
   import org.apache.commons.lang.StringUtils;
   
   /**
    * MetafacadeLogic implementation for org.andromda.metafacades.uml.ManageableEntityAttribute.
    *
   * @see org.andromda.metafacades.uml.ManageableEntityAttribute
   * @author Bob Fields
   */
  public class ManageableEntityAttributeLogicImpl
      extends ManageableEntityAttributeLogic
  {
      private static final long serialVersionUID = 34L;
      /**
       * @param metaObject
       * @param context
       */
      public ManageableEntityAttributeLogicImpl(
          Object metaObject,
          String context)
      {
          super(metaObject, context);
      }
  
      /**
       * @see org.andromda.metafacades.uml.ManageableEntityAttribute#isDisplay()
       */
      @Override
      protected boolean handleIsDisplay()
      {
          boolean display = true;
  
          // only identifiers might be hidden
          if (this.isIdentifier())
          {
              final String displayStrategy =
                  StringUtils.trimToNull(
                      (String)this.getConfiguredProperty(UMLMetafacadeProperties.MANAGEABLE_ID_DISPLAY_STRATEGY));
  
              // never display identifiers
              if ("never".equalsIgnoreCase(displayStrategy))
              {
                  display = false;
              }
  
              // always display identifiers
              else if ("always".equalsIgnoreCase(displayStrategy))
              {
                  display = true;
              }
  
              // only display identifiers when explicitly modeled
              else // if ("auto".equalsIgnoreCase(displayStrategy))
              {
                  display = ((Entity)this.getOwner()).isUsingAssignedIdentifier();
              }
          }
  
          return display;
      }
  
      /**
       * @see org.andromda.metafacades.uml.ManageableEntityAttribute#isManageableGetterAvailable()
       */
      @Override
      protected boolean handleIsManageableGetterAvailable()
      {
          return this.getType() != null && this.getType().isBlobType();
      }
  }