How to use

expand

method

in

com.mysema.query.types.FactoryExpressionUtils

private static List<Expression<?>> expand(List<Expression<?>> exprs) {
  List<Expression<?>> rv = new ArrayList<Expression<?>>(exprs.size());
  for (Expression<?> expr : exprs) {
    if (expr instanceof ProjectionRole) {
      expr = ((ProjectionRole) expr).getProjection();
    }
    if (expr instanceof FactoryExpression<?>) {
      rv.addAll(expand(((FactoryExpression<?>)expr).getArgs()));
    } else {
      rv.add(expr);
    }
  }
  return rv;
}