public EntityIndexBinding getSafeIndexBindingForEntity(Class<?> entityType) {
   if (entityType == null) {
     throw log.nullIsInvalidIndexedType();
   }
   EntityIndexBinding entityIndexBinding = getIndexBinding(entityType);
   if (entityIndexBinding == null) {
     throw log.notAnIndexedType(entityType.getName());
   }
   return entityIndexBinding;
 }