public boolean canChange(final IRI query,final String currentUser) throws RepositoryException, QueryEvaluationException, MalformedQueryException {
  return performAccessQuery(ASK_UPDATABLE,query,currentUser);
}

public boolean canChange ( final IRI query , final String currentUser ) throws RepositoryException , QueryEvaluationException , MalformedQueryException { return performAccessQuery ( ASK_UPDATABLE , query , currentUser ) ; }
determines whether the user with the given username is allowed to update or delete the given query .
