code: public <T> CFMappingDef<T> getCfMapDef(Class<T> clazz, boolean throwException) {
      @SuppressWarnings("unchecked")
      CFMappingDef<T> cfMapDef = (CFMappingDef<T>) cfMapByClazz.get(clazz);
      if (null == cfMapDef && throwException) {
        throw new HectorObjectMapperException(
            "could not find property definitions for class, "
                + clazz.getSimpleName()
                + ", in class cache.  This indicates the EntityManager was not initialized properly.  If not using EntityManager the cache must be explicity initialized");
  
      }
      return cfMapDef;
    }
docs: Retrieve class mapping meta-data by <code>Class</code> object.
  
  @param <T>
  @param clazz
  @param throwException
  @return CFMappingDef if found, exception if throwException = true, and null
  otherwise