code: private SearchControls getCallerSearchControls() {
          String[] attrIds = { idStoreDefinition.getCallerNameAttribute() };
          long limit = Long.valueOf(idStoreDefinition.getMaxResults());
          int timeOut = idStoreDefinition.getReadTimeout();
          int scope = getSearchScope(idStoreDefinition.getCallerSearchScope());
          return new SearchControls(scope, limit, timeOut, attrIds, false, false);
      }
docs: Get the {@link SearchControls} object for the caller search.
  
  @return The {@link SearchControls} object to use when search LDAP for the user.