openbravo callout使用OBDal.getInstance .save不工作

Question

我在eclipse控制台列表中得到的所有行上都应用了逻辑，我得到了正确的结果，一切都很好，但现在我只想再次设置值这里是我在openbravo callout

中的代码

for (ShipmentType st_op : cp.getOCAShipmentTypeList()) {
    String val = st_op.getName().substring(0, 3);
    System.out.println(val);
    Exist = val.concat(String.valueOf(CountTot));
    System.out.println("Existing Value Change : " + Exist);
    st_op.setName(Exist);
    OBDal.getInstance().save(st_op);
  }

下面是添加第三条记录后的结果控制台:

2011
2
4022
3
201
Existing Value Change : 2013
402
Existing Value Change : 4023
3
4H
3
3
4H33

我只是不能设置和保存与OBDal

OBDal.getInstance().save(st_op);

Answer 1

我通过声明完成了我的工作:

    ShipmentType st = OBProvider.getInstance().get(ShipmentType.class);
    for (ShipmentType st_op : cp.getOCAShipmentTypeList()) {
    String val = st_op.getName().substring(0, 3);
    System.out.println(val);
    Exist = val.concat(String.valueOf(CountTot));
    System.out.println("Existing Value Change : " + Exist);
    st_op.setName(Exist);
  }

    OBDal.getInstance().save(st);