[seasar-user-en:23] Re: Mapping with S2dao.

[Yasuo Higa]

Hi,

> Can we map with S2dao like one-to-many.
> 
Sorry, S2Dao don't support one-to-many mapping.
However you can do as follows:

public interface XYZDao {
  Class BEAN = XYZ.class;
  public XYZ getXYZ(String code);
  public ...
}

public abstract class XYZDaoImpl implements XYZDao {
  private PQRDao pqrDao;
  ...
  public XYZ getXYZ(String code) {
    XYZ xyz = super.getXYZ(code);
    Set pqrs = pqrDao.getPQRs(code);
    xyz.setPQRs(pqrs);
    pqrs.setXYZ(xyz);
    return xyz;
  }
}

> 
> I want to use "values" of entity class XYZ will have a map to another entity
> class PQR.
> and this will be a one-to-many Map.
> 
> 
> public class XYZ {
> 
>     private static final String TABLE="Z_XYZ";
>     //ID
>     private String code = null;
>     /** Values which belong to this definition */
>     private Set values = Collections.EMPTY_SET;
> }
> 
> public class PQR {
> 
>     private static final String TABLE="Z_PQR";
> 
>     /** [PK]ID */
>     private Long id = null;
> 
>     /** XYZ */
>     private XYZ definition = null;
> }


Yasuo Higa
The Seasar Foundation