Question

在我的java BackEnd中我使用EclipseLink作为ORM。一切都很好，直到昨天。当我想从db获取数据时，ORM的查询只从mysql db获取1行，但是在调试时我得到生成的sql字符串并在MySQL Workbench中运行它，我得到200多行（正确的数字）。我不明白为什么在代码查询中没有按预期工作。这是我的问题：

String queryString = "select c from Contract c " +
                    "join c.contractForms cf " +
                    "join c.insuredPerson per " +
                    "join c.paymentGraphs pg " +
                    "join c.payments pm " +
                    "join cf.company com " +
                    "join cf.curator cur " +
                    "join cf.insuranceType insType " +
                    "where c.state = :state " +
                    "and cf.state = :state and pg.state = :state and pm.state = :state ";
Query query= em.createQuery(queryString).setParameter("state", "A");

这个是生成sql String：

SELECT *
FROM Contract t1 LEFT OUTER JOIN ContractForm t2 ON (t2.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN PaymentGraph t4 ON (t4.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN Payment t5 ON (t5.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN Claim t0 ON (t0.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN OfferForm t3 ON (t3.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN ReinsuranceForm t6 ON (t6.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN ReinsuranceOfferForm t7 ON (t7.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN ReinsurerData t8 ON (t8.CONTRACT_ID = t1.ID)
  LEFT OUTER JOIN Workflow t9 ON (t9.CONTRACT_ID = t1.ID)
  , ReferenceData t11, InsuredPerson t10, ReferenceData t13, ReferenceData t12
WHERE (((((t1.STATE = 'A') AND (t2.STATE = 'A')) AND (t4.STATE = 'A')) AND (t5.STATE = 'A')) AND
       ((((t10.ID = t1.PERSON_ID) AND (t11.ID = t2.CONTRACT_COMPANY_ID)) AND (t12.ID = t2.CURATOR_ID)) AND
        (t13.ID = t2.INSURANCE_TYPE)))
ORDER BY t2.CONTRACT_DATE DESC

我无法找到解决此问题的方法。谁能说出问题是什么以及如何解决？

EclipseLink提取的数据不正确

0 个答案: