Criterion.java 文件源码

@Override
public Predicate toPredicate(Criterion c, Root<?> r, CriteriaBuilder b) {
    Object o = c.getCompareTo();
    if(o == null)
        return r.get(c.getPropertyName()).in();
    if(o instanceof Collection)
        return r.get(c.getPropertyName()).in((Collection) o);
    throw new IllegalArgumentException(c.getPropertyName());
}