如何在Openbravo中使用HQL查詢結果集返回對象

嗨，我是openbravo初學者。我想知道從HQL查詢結果集返回的對象。通常我可以返回列表或字符串。當我試圖返回對象它的顯示錯誤就像不能將對象轉換爲字符串。如何在Openbravo中使用HQL查詢結果集返回對象

這裏我的目標是：ShipmentInOut

private ShipmentInOut getShipment(String documentNo) { 
    String query = "select id from MaterialMgmtShipmentInOut where documentNo='" + documentNo 
      + "' and salesTransaction='Y'"; 
     Query resultset = OBDal.getInstance().getSession().createQuery(query); 

     List<ShipmentInOut> shpmntCritList = resultset.list(); 


     if (shpmntCritList != null && shpmntCritList.size() > 0) { 
      return shpmntCritList.get(0); 
     } else { 
      throw new OBException("shipment " + documentNo + " not found"); 
     } 
}

在上面statment我有例外，所以我決定做標準查詢和我寫的條件查詢equalent上面HQL查詢，但不幸的是，如果條件第二部分返回0爲的結果。但我不知道爲什麼我在同一種查詢中得到不同的結果。上面的HQL查詢正確輸入if條件。但問題是鑄造。

private ShipmentInOut getShipment(String documentNo) { 

    log.info() 
    OBCriteria<ShipmentInOut> shpmntCrit = OBDal.getInstance().createCriteria(ShipmentInOut.class); 
    shpmntCrit.add(Restrictions.eq(ShipmentInOut.PROPERTY_DOCUMENTNO, documentNo)); 
    shpmntCrit.add(Restrictions.eq(ShipmentInOut.PROPERTY_SALESTRANSACTION, true)); 


    List<ShipmentInOut> shpmntCritList = shpmntCrit.list(); 
    if (shpmntCritList != null && shpmntCritList.size() > 0) { 
     return shpmntCritList.get(0); 
    } else { 
     throw new OBException("shipment " + documentNo + " not found"); 
    } 
    }

請任何人幫助我。我想實現上述任何一種方法。在此先感謝

來源

2014-11-22 Abinaya Palanisamy

您還沒有提供類映射 – carbontax 2014-11-23 22:04:27

HQL應該明確地返回對象。你在哪一行出錯？ – 2014-11-25 04:57:20

在哪條線路上出現錯誤？

試試這個

//log.info() 
OBCriteria<ShipmentInOut> shpmntCrit = OBDal.getInstance().createCriteria(ShipmentInOut.class); 
shpmntCrit.add(Restrictions.eq(ShipmentInOut.PROPERTY_DOCUMENTNO, documentNo)); 
shpmntCrit.add(Restrictions.eq(ShipmentInOut.PROPERTY_SALESTRANSACTION, true)); 

if (shpmntCrit.list().size() > 0) 
    return shpmntCrit.list().get(0); 
else 
    throw new OBException("shipment " + documentNo + " not found");

來源

2014-11-25 04:57:57

非常感謝您的回答。最後我得到了自己的解決方案

String query = "from MaterialMgmtShipmentInOut where documentNo='" + documentNo 
     + "' and salesTransaction='Y'"; 
    Query resultset = OBDal.getInstance().getSession().createQuery(query); 
    List<ShipmentInOut> resultlist = new ArrayList<ShipmentInOut>(resultset.list()); 
    if (resultset.list().size() > 0) { 
     return resultlist.get(0); 
    } else { 
     throw new OBException("shipment " + documentNo + " not found"); 
    }

來源

2014-11-27 13:17:36

如何在Openbravo中使用HQL查詢結果集返回對象

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