[Opensource] core.dbobj.Schema: What is a categoryName?

[Peter A. Pilgrim]

     /**
      * Method to add a dbobject to the list of dbobjects in this schema
      * for a named dbother location and named category.
      * @param dbobjectClass The name of the dbobject to add to the schema.
      * @param otherDBName The dbcontext to use for this dataobject.
      * @param categoryName the navigation category to use for this database object
      */
     protected synchronized void addDBObject(String dbobjectClass,
                                             String otherDBName,
                                             String categoryName) {
         StringUtil.assertNotBlank(dbobjectClass,
                 "DB Object class name may not " +
                 " be null or blank here");
         SchemaDefinition sd = getDef();
         sd.addMember(dbobjectClass);

         if (otherDBName != null) {
             sd.addDBObjectMap(dbobjectClass, otherDBName);
         }
     } /* addDBObject(String, String, String) */


Can anyone explain the purpose "categoryName" in the Schema class?
NB: this parameter is not being used.

-- 
Peter Pilgrim
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