如何在JDOQL中实现SQL IN查询？

Question

这个JDOQL是否与以下SQL相同？

Query query = pm.newQuery(Vote.class, ":p.contains(personId)");

if (startDate != null) {
    query.setFilter("personId == listOfIds && createdDate > startDateParam");       
    query.declareParameters("java.util.List listOfIds, java.util.Date startDateParam");     
}
else {
    query.setFilter("personId == :listOfIds");

}   
query.setOrdering("createdDate desc");

List<Vote> list = (List<Vote>) query.execute(listOfIds, startDate);

---

SELECT * FROM VOTE
WHERE persionID IN (id1, id2..)
AND createdDate > '2011-07-11'
ORDER BY createdDate desc;

Answer 1

是。请记住，'in'查询会转换为多个基础数据存储查询，因此效率不高 - 如果可以避免，请执行此操作。