批量删除

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java 代码

public void deleteAllBugInTestReport(Integer testReportId) throws DaoException {
        try {
            Session session = HibernateUtil.getSession();

            StringBuilder selectBugRelation = new StringBuilder("select br.id from BugRelation as br, Bug as b ").append(
                        "where ((br.fromId=b.bugId) or (br.toId=b.bugId)) ").append(
                            "and b.testReportId = ").append(testReportId).append(")");
            Debug.logInfo(selectBugRelation.toString(),module);

            doDelete(session, session.createQuery(selectBugRelation.toString()).list(), "delete BugRelation where ");


            StringBuilder selectBugFieldHistory = new StringBuilder("select bfh.id from BugFieldHistory as bfh, BugHistory as bh, Bug as b ").append(
                        "where bfh.bugHistoryId = bh.id and bh.bugId = b.bugId ").append(
                                " and b.testReportId = ").append(testReportId).append(")");
            Debug.logInfo(selectBugFieldHistory.toString(), module);

            doDelete(session, session.createQuery(selectBugFieldHistory.toString()).list(), "delete BugFieldHistory where ");

            StringBuilder selectBugHistory = new StringBuilder(
                    "select bh.id from BugHistory as bh, Bug as b ").append(
                        "where bh.bugId = b.bugId and b.testReportId = ").append(testReportId).append(")");
            Debug.logInfo(selectBugHistory.toString(), module);
            doDelete(session, session.createQuery(selectBugHistory.toString()).list(), "delete BugHistory where ");

            StringBuilder deleteBug = new StringBuilder(
                    "delete Bug where testReportId = ").append(testReportId);
            Debug.logInfo(deleteBug.toString(), module);
            session.createQuery(deleteBug.toString()).executeUpdate();
        } catch (Exception e) {
            throw new DaoException(e);
        }
    }

    上面就是批量删除的操作。实体工具真的不行。在性能上有要求的地方，我觉得还真的不如用JDBC好。