java - EJBQL/MySQL 正则表达式和 IN

Question

我有一个正则表达式列表，并希望返回这些行，其中包含一个通过任何正则表达式的字段。反正有类似以下的东西：

SELECT * FROM Foo as f WHERE f.bar IN ("regex1","regex2");

在 EJBQL 中似乎根本不可能使用正则表达式，所以我猜我必须使用本机（MySQL）查询。

Answer 1

Why not combine the regexes into one?

"(?:" + regex1 + ")|(?:" + regex2 + ")"

So if regex1 = "^.*foo(.*)bar" and regex2 = "baz(.*)frob$", you'd get

(?:^.*foo(.*)bar)|(?:baz(.*)frob$)

Answer 2

No, this is not possible. At least not the way you think it is.

Do this instead: Insert the regexes as rows into a table. Then query

SELECT 
  * 
FROM
  Foo AS f
  INNER JOIN Regexes AS re ON f.bar REGEXP re.pattern